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Deng J, Lee M, Qin C, Lee Y, You M, Liu J. Protective behaviors against COVID-19 and their association with psychological factors in China and South Korea during the Omicron wave: a comparative study. Public Health 2024; 229:116-125. [PMID: 38428248 DOI: 10.1016/j.puhe.2024.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 01/24/2024] [Accepted: 02/01/2024] [Indexed: 03/03/2024]
Abstract
OBJECTIVES We aimed to explore the level of protective behaviors against COVID-19 and its association with psychological factors in China and South Korea during the Omicron wave. STUDY DESIGN Cross-sectional study. METHODS We conducted a population-based cross-sectional survey from March 15 to 30, 2023 in China and South Korea. Demographic characteristics, health status, protective behaviors, and psychological factors (including perceived risks, efficacy belief, attribution of disease, fear of COVID-19, trust and evaluation, fatalism, resilience, and pandemic fatigue) were investigated. After adjusting for sociodemographic and health-related factors, multivariable regression models were constructed to explore the psychological influencing factors of protective behavior. RESULTS A total of 3000 participants from China and 1000 participants from Korea were included in the final analysis. The mean performance score for protective behaviors among all respondents was 2.885 in China and 3.139 in Korea, with scores ranging from 1 to 4. In China, performance scores were higher in those who were female, aged 30-39, employed, married, living in urban areas, having the highest income level, having the best subjective health status, and having a history of chronic disease (P-value <0.05). In Korea, performance scores were higher for individuals who were female, over 50 years old, educated to high school or below, unemployed, married, had a history of chronic disease, and had never been infected with SARS-CoV-2 (P-value <0.05). In the multivariable regression model, perceived severity (β = 0.067), attribution of disease (β = 0.121), fear of COVID-19 (β = 0.128), trust and evaluation (β = 0.097), psychological resilience (β = 0.068), and efficacy belief (β = 0.216) were positively associated with the performance scores, pandemic fatigue (β = -0.089) was negatively associated with performance scores in China (P-value <0.05). However, in Korea, perceived susceptibility (β = 0.075), fear of COVID-19 (β = 0.107), and efficacy belief (β = 0.357) were positively associated with protective behaviors (P-value <0.05), trust and evaluation (β = -0.078) and pandemic fatigue (β = -0.063) were negatively associated with performance scores (P-value <0.05). CONCLUSIONS Populations in both China and Korea demonstrated great compliance with protective behaviors during the Omicron wave. Because of the sociocultural, economic, and political differences, there were differences in the association between psychological factors and protective behaviors in the two countries. This study, from the perspective of psychological factors in different cultural contexts, would provide references for increasing adherence to protective guidelines in future outbreaks of emerging infectious diseases.
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Affiliation(s)
- J Deng
- School of Public Health, Peking University, Beijing, China
| | - M Lee
- Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Korea
| | - C Qin
- School of Public Health, Peking University, Beijing, China
| | - Y Lee
- Department of Public Health Sciences, Graduate School of Public Health, Seoul National University, Seoul, Korea
| | - M You
- Department of Public Health Sciences, Graduate School of Public Health, Seoul National University, Seoul, Korea; Institute of Health and Environment, Seoul National University, Seoul, Republic of Korea.
| | - J Liu
- School of Public Health, Peking University, Beijing, China; Institute for Global Health and Development, Peking University, Beijing, China.
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Bi C, Wei C, Li J, Wen S, Zhao H, Yu J, Shi X, Zhang Y, Liu Q, Zhang Y, Li B, You M. A novel variation of TaGW2-6B increases grain weight without penalty in grain protein content in wheat ( Triticum aestivum L.). Mol Breed 2024; 44:15. [PMID: 38362529 PMCID: PMC10864231 DOI: 10.1007/s11032-024-01455-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 01/23/2024] [Indexed: 02/17/2024]
Abstract
Yield and quality are two crucial breeding objects of wheat therein grain weight and grain protein content (GPC) are two key relevant factors correspondingly. Investigations of their genetic mechanisms represent special significance for breeding. In this study, 199 F2 plants and corresponding F2:3 families derived from Nongda3753 (ND3753) and its EMS-generated mutant 564 (M564) were used to investigate the genetic basis of larger grain and higher GPC of M564. QTL analysis identified a total of 33 environmentally stable QTLs related to thousand grain weight (TGW), grain area (GA), grain circle (GC), grain length (GL), grain width (GW), and GPC on chromosomes 1B, 2A, 2B, 4D, 6B, and 7D, respectively, among which QGw.cau-6B.1, QTgw.cau-6B.1, QGa.cau-6B.1, and QGc.cau-6B.1 shared overlap confidence interval on chromosome 6B. This interval contained the TaGW2 gene playing the same role as the QTLs, so TaGW2-6B was cloned and sequenced. Sequence alignment revealed two G/A SNPs between two parents, among which the SNP in the seventh exon led to a premature termination in M564. A KASP marker was developed based on the SNP, and single-marker analysis on biparental populations showed that the mutant allele could significantly increase GW and TGW, but had no effect on GPC. Distribution detection of the mutant allele through KASP marker genotyping and sequence alignment against databases ascertained that no materials harbored this allele within natural populations. This allele was subsequently introduced into three different varieties through molecular marker-assisted backcrossing, and it was revealed that the allele had a significant effect on simultaneously increasing GW, TGW, and even GPC in all of three backgrounds. Summing up the above, it could be concluded that a novel elite allele of TaGW2-6B was artificially created and might play an important role in wheat breeding for high yield and quality. Supplementary Information The online version contains supplementary material available at 10.1007/s11032-024-01455-y.
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Affiliation(s)
- Chan Bi
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization, Ministry of Education, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193 China
| | - Chaoxiong Wei
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization, Ministry of Education, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193 China
| | - Jinghui Li
- Wheat Center, Henan Institute of Science and Technology, Henan Provincial Key Laboratory of Hybrid Wheat, Xinxiang, 453003 China
| | - Shaozhe Wen
- Department of Landscape and Garden, Yangzhou Polytechnic College, Yangzhou, 225009 China
| | - Huanhuan Zhao
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization, Ministry of Education, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193 China
| | - Jiazheng Yu
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization, Ministry of Education, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193 China
| | - Xintian Shi
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization, Ministry of Education, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193 China
| | - Yuan Zhang
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization, Ministry of Education, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193 China
| | - Qiaofeng Liu
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization, Ministry of Education, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193 China
| | - Yufeng Zhang
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization, Ministry of Education, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193 China
| | - Baoyun Li
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization, Ministry of Education, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193 China
| | - Mingshan You
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization, Ministry of Education, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193 China
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Xu W, Chen Y, Liu B, Li Q, Zhou Y, Li X, Guo W, Hu Z, Liu Z, Xin M, Yao Y, You M, Peng H, Ni Z, Xing J. TaANR1-TaMADS25 module regulates lignin biosynthesis and root development in wheat (Triticum aestivum L.). J Genet Genomics 2023; 50:917-920. [PMID: 37666357 DOI: 10.1016/j.jgg.2023.08.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 08/29/2023] [Accepted: 08/29/2023] [Indexed: 09/06/2023]
Affiliation(s)
- Weiya Xu
- Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Yongming Chen
- Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Bin Liu
- Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Qiuyuan Li
- Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Yilan Zhou
- Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Xuanshuang Li
- Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Weilong Guo
- Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Zhaorong Hu
- Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Zhenshan Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Mingming Xin
- Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Yingyin Yao
- Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Mingshan You
- Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Huiru Peng
- Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Zhongfu Ni
- Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Jiewen Xing
- Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China.
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Hong W, Yin J, You M, Wang H, Cao J, Li J, Liu M, Man C. A graph empowered insider threat detection framework based on daily activities. ISA Trans 2023; 141:84-92. [PMID: 37451919 DOI: 10.1016/j.isatra.2023.06.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 06/27/2023] [Accepted: 06/28/2023] [Indexed: 07/18/2023]
Abstract
While threats from outsiders are easier to alleviate, effective ways seldom exist to handle threats from insiders. The key to managing insider threats lies in engineering behavioral features efficiently and classifying them correctly. To handle challenges in feature engineering, we propose an integrated feature engineering solution based on daily activities, combining manually-selected features and automatically-extracted features together. Particularly, an LSTM auto-encoder is introduced for automatic feature engineering from sequential activities. To improve detection, a residual hybrid network (ResHybnet) containing GNN and CNN components is also proposed along with an organizational graph, taking a user-day combination as a node. Experimental results show that the proposed LSTM auto-encoder could extract hidden patterns from sequential activities efficiently, improving F1 score by 0.56%. Additionally, with the designed residual link, our ResHybnet model works well to boost performance and has outperformed the best of other models by 1.97% on the same features. We published our code on GitHub: https://github.com/Wayne-on-the-road/ResHybnet.
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Affiliation(s)
- Wei Hong
- School of Artificial Intelligence, Chongqing University of Arts and Sciences, Chongqing, 402160, China
| | - Jiao Yin
- Institute for Sustainable Industries and Liveable Cities, Victoria University, Melbourne, VIC, 3011, Australia.
| | - Mingshan You
- Institute for Sustainable Industries and Liveable Cities, Victoria University, Melbourne, VIC, 3011, Australia
| | - Hua Wang
- Institute for Sustainable Industries and Liveable Cities, Victoria University, Melbourne, VIC, 3011, Australia
| | - Jinli Cao
- Department of Computer Science and Information Technology, La Trobe University, Melbourne, VIC, 3086, Australia
| | - Jianxin Li
- School of Information Technology, Deakin University, Melbourne, VIC, 3125, Australia
| | - Ming Liu
- School of Information Technology, Deakin University, Melbourne, VIC, 3125, Australia
| | - Chengyuan Man
- Async Working Pty Ltd, Melbourne, VIC, 3149, Australia
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5
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Ye ZL, Liu YY, Wang H, You M. [Analysis of clinical guidelines for oro-maxillofacial cone-beam CT]. Zhonghua Kou Qiang Yi Xue Za Zhi 2023; 58:964-970. [PMID: 37659857 DOI: 10.3760/cma.j.cn112144-20230403-00133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 09/04/2023]
Abstract
Oro-maxillofacial cone-beam CT (CBCT) is the most widely used three-dimensional imaging method in the field of oral and maxillofacial radiology. It has been widely used in China, while radiation safety, examination indications and other issues still lack comprehensive regulations and standards. Over the years, clinical guidelines and position statements for the rational use of CBCT examinations have been issued in the world, providing standardized instructions for local practitioners. This paper reviewed these guidelines to provide reference for the formulation of relevant guidelines in China.
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Affiliation(s)
- Z L Ye
- Department of Medical Imaging, West China Hospital of Stomatology, Sichuan University & State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, Chengdu 610041, China
| | - Y Y Liu
- Department of Medical Imaging, West China Hospital of Stomatology, Sichuan University & State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, Chengdu 610041, China
| | - H Wang
- Department of Medical Imaging, West China Hospital of Stomatology, Sichuan University & State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, Chengdu 610041, China
| | - M You
- Department of Medical Imaging, West China Hospital of Stomatology, Sichuan University & State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, Chengdu 610041, China
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6
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Liu G, Zhang R, Li S, Ullah R, Yang F, Wang Z, Guo W, You M, Li B, Xie C, Wang L, Liu J, Ni Z, Sun Q, Liang R. TaMADS29 interacts with TaNF-YB1 to synergistically regulate early grain development in bread wheat. Sci China Life Sci 2023:10.1007/s11427-022-2286-0. [PMID: 36802319 DOI: 10.1007/s11427-022-2286-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Accepted: 01/18/2023] [Indexed: 02/23/2023]
Abstract
Grain development is a crucial determinant of yield and quality in bread wheat (Triticum aestivum L.). However, the regulatory mechanisms underlying wheat grain development remain elusive. Here we report how TaMADS29 interacts with TaNF-YB1 to synergistically regulate early grain development in bread wheat. The tamads29 mutants generated by CRISPR/Cas9 exhibited severe grain filling deficiency, coupled with excessive accumulation of reactive oxygen species (ROS) and abnormal programmed cell death that occurred in early developing grains, while overexpression of TaMADS29 increased grain width and 1,000-kernel weight. Further analysis revealed that TaMADS29 interacted directly with TaNF-YB1; null mutation in TaNF-YB1 caused grain developmental deficiency similar to tamads29 mutants. The regulatory complex composed of TaMADS29 and TaNF-YB1 exercises its possible function that inhibits the excessive accumulation of ROS by regulating the genes involved in chloroplast development and photosynthesis in early developing wheat grains and prevents nucellar projection degradation and endosperm cell death, facilitating transportation of nutrients into the endosperm and wholly filling of developing grains. Collectively, our work not only discloses the molecular mechanism of MADS-box and NF-Y TFs in facilitating bread wheat grain development, but also indicates that caryopsis chloroplast might be a central regulator of grain development rather than merely a photosynthesis organelle. More importantly, our work offers an innovative way to breed high-yield wheat cultivars by controlling the ROS level in developing grains.
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Affiliation(s)
- Guoyu Liu
- Frontiers Science Center for Molecular Design Breeding (MOE), State Key Laboratory for Agrobiotechnology, State Key Laboratory of Plant Physiology and Biochemistry, Key Laboratory of Crop Heterosis and Utilization (MOE), and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China
| | - Runqi Zhang
- Frontiers Science Center for Molecular Design Breeding (MOE), State Key Laboratory for Agrobiotechnology, State Key Laboratory of Plant Physiology and Biochemistry, Key Laboratory of Crop Heterosis and Utilization (MOE), and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China
| | - Sen Li
- Frontiers Science Center for Molecular Design Breeding (MOE), State Key Laboratory for Agrobiotechnology, State Key Laboratory of Plant Physiology and Biochemistry, Key Laboratory of Crop Heterosis and Utilization (MOE), and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China
| | - Rehmat Ullah
- Frontiers Science Center for Molecular Design Breeding (MOE), State Key Laboratory for Agrobiotechnology, State Key Laboratory of Plant Physiology and Biochemistry, Key Laboratory of Crop Heterosis and Utilization (MOE), and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China
| | - Fengping Yang
- Frontiers Science Center for Molecular Design Breeding (MOE), State Key Laboratory for Agrobiotechnology, State Key Laboratory of Plant Physiology and Biochemistry, Key Laboratory of Crop Heterosis and Utilization (MOE), and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China
| | - Zihao Wang
- Frontiers Science Center for Molecular Design Breeding (MOE), State Key Laboratory for Agrobiotechnology, State Key Laboratory of Plant Physiology and Biochemistry, Key Laboratory of Crop Heterosis and Utilization (MOE), and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China
| | - Weilong Guo
- Frontiers Science Center for Molecular Design Breeding (MOE), State Key Laboratory for Agrobiotechnology, State Key Laboratory of Plant Physiology and Biochemistry, Key Laboratory of Crop Heterosis and Utilization (MOE), and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China
| | - Mingshan You
- Frontiers Science Center for Molecular Design Breeding (MOE), State Key Laboratory for Agrobiotechnology, State Key Laboratory of Plant Physiology and Biochemistry, Key Laboratory of Crop Heterosis and Utilization (MOE), and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China
| | - Baoyun Li
- Frontiers Science Center for Molecular Design Breeding (MOE), State Key Laboratory for Agrobiotechnology, State Key Laboratory of Plant Physiology and Biochemistry, Key Laboratory of Crop Heterosis and Utilization (MOE), and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China
| | - Chaojie Xie
- Frontiers Science Center for Molecular Design Breeding (MOE), State Key Laboratory for Agrobiotechnology, State Key Laboratory of Plant Physiology and Biochemistry, Key Laboratory of Crop Heterosis and Utilization (MOE), and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China
| | - Liangsheng Wang
- Frontiers Science Center for Molecular Design Breeding (MOE), State Key Laboratory for Agrobiotechnology, State Key Laboratory of Plant Physiology and Biochemistry, Key Laboratory of Crop Heterosis and Utilization (MOE), and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China
| | - Jie Liu
- Frontiers Science Center for Molecular Design Breeding (MOE), State Key Laboratory for Agrobiotechnology, State Key Laboratory of Plant Physiology and Biochemistry, Key Laboratory of Crop Heterosis and Utilization (MOE), and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China
| | - Zhongfu Ni
- Frontiers Science Center for Molecular Design Breeding (MOE), State Key Laboratory for Agrobiotechnology, State Key Laboratory of Plant Physiology and Biochemistry, Key Laboratory of Crop Heterosis and Utilization (MOE), and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China
| | - Qixin Sun
- Frontiers Science Center for Molecular Design Breeding (MOE), State Key Laboratory for Agrobiotechnology, State Key Laboratory of Plant Physiology and Biochemistry, Key Laboratory of Crop Heterosis and Utilization (MOE), and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China
| | - Rongqi Liang
- Frontiers Science Center for Molecular Design Breeding (MOE), State Key Laboratory for Agrobiotechnology, State Key Laboratory of Plant Physiology and Biochemistry, Key Laboratory of Crop Heterosis and Utilization (MOE), and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China.
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7
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Feng HL, Wang S, Xiang Q, Xu CJ, Zhong Y, Zheng XX, You M, Lan L. [Research progress on moderate and deep sedation during wound dressing change in pediatric burn patients]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2023; 39:96-100. [PMID: 36740434 DOI: 10.3760/cma.j.cn501225-20220421-00153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Moderate and deep sedation can effectively relieve or eliminate the pain and body discomfort during wound dressing change in pediatric burn patients, relieve anxiety, agitation, and even delirium of the children, reduce the metabolic rate of the children, make them in a quiet, comfortable, and cooperative state, which is conducive to the smooth completion of dressing change. This paper summarized the three aspects of moderate and deep sedation in pediatric burn patients, including the overview, main points of implementation, and effects, and further introduced the moderate and deep sedation medication regimens for different routes of administration, as well as the content of evaluation and monitoring. Suggestions on the prevention and management of related complications and the management of moderate and deep sedation implementation procedures were put forward, in order to provide references for the development of moderate and deep sedation for wound dressing change in pediatric burn patients in China.
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Affiliation(s)
- H L Feng
- School of Nursing, Huzhou University, Huzhou 313000, China
| | - S Wang
- School of Nursing, Huzhou University, Huzhou 313000, China
| | - Q Xiang
- School of Nursing, Huzhou University, Huzhou 313000, China
| | - C J Xu
- Department of Nursing, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China
| | - Y Zhong
- School of Nursing, Huzhou University, Huzhou 313000, China
| | - X X Zheng
- School of Nursing, Huzhou University, Huzhou 313000, China
| | - M You
- School of Nursing, Huzhou University, Huzhou 313000, China
| | - L Lan
- School of Nursing, Huzhou University, Huzhou 313000, China
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8
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Zhang R, Liu G, Xu H, Lou H, Zhai S, Chen A, Hao S, Xing J, Liu J, You M, Zhang Y, Xie C, Ma J, Liang R, Sun Q, Zhai H, Ni Z, Li B. Heat Stress Tolerance 2 confers basal heat stress tolerance in allohexaploid wheat (Triticum aestivum L.). J Exp Bot 2022; 73:6600-6614. [PMID: 35781562 DOI: 10.1093/jxb/erac297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 07/02/2022] [Indexed: 06/15/2023]
Abstract
Heat stress substantially reduces the yield potential of wheat (Triticum aestivum L.), one of the most widely cultivated staple crops, and greatly threatens global food security in the context of global warming. However, few studies have explored the heat stress tolerance (HST)-related genetic resources in wheat. Here, we identified and fine-mapped a wheat HST locus, TaHST2, which is indispensable for HST in both the vegetative and reproductive stages of the wheat life cycle. The studied pair of near isogenic lines (NILs) exhibited diverse morphologies under heat stress, based on which we mapped TaHST2 to a 485 kb interval on chromosome arm 4DS. Under heat stress, TaHST2 confers a superior conversion rate from soluble sugars to starch in wheat grains, resulting in faster grain filling and a higher yield potential. A further exploration of genetic resources indicated that TaHST2 underwent strong artificial selection during wheat domestication, suggesting it is an essential locus for basal HST in wheat. Our findings provide deeper insights into the genetic basis of wheat HST and might be useful for global efforts to breed heat-stress-tolerant cultivars.
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Affiliation(s)
- Runqi Zhang
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Guoyu Liu
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Huanwen Xu
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Hongyao Lou
- Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Shanshan Zhai
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Aiyan Chen
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Shuiyuan Hao
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
- Hetao College, Bayannur, China
| | - Jiewen Xing
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Jie Liu
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Mingshan You
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Yufeng Zhang
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Chaojie Xie
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Jun Ma
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Rongqi Liang
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Qixin Sun
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Huijie Zhai
- School of Life Science and Technology, Henan Institute of Science and Technology, Xinxiang, China
| | - Zhongfu Ni
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Baoyun Li
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
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Yang F, Liu G, Wu Z, Zhang D, Zhang Y, You M, Li B, Zhang X, Liang R. Cloning and Functional Analysis of TaWRI1Ls, the Key Genes for Grain Fatty Acid Synthesis in Bread Wheat. Int J Mol Sci 2022; 23:ijms23105293. [PMID: 35628114 PMCID: PMC9141799 DOI: 10.3390/ijms23105293] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 04/28/2022] [Accepted: 05/02/2022] [Indexed: 01/16/2023] Open
Abstract
WRINKLED1 (WRI1), an APETALA2 (AP2) transcription factor (TF), critically regulates the processes related to fatty acid synthesis, storage oil accumulation, and seed development in plants. However, the WRI1 genes remain unknown in allohexaploid bread wheat (Triticum aestivum L.). In this study, based on the sequence of Arabidopsis AtWRI1, two TaWRI1Ls genes of bread wheat, TaWRI1L1 and TaWRI1L2, were cloned. TaWRI1L2 was closely related to monocotyledons and clustered in one subgroup with AtWRI1, while TaWRI1L1 was clustered in another subgroup with AtWRI3 and AtWRI4. Both were expressed highly in the developmental grain, subcellular localized in the nucleus, and showed transcriptional activation activity. TaWRI1L2, rather than TaWRI1L1, promoted oil body accumulation and significantly increased triglyceride (TAG) content in tobacco leaves. Overexpression of TaWRI1L2 compensated for the functional loss of AtWRI1 in an Arabidopsis mutant and restored the wild-type phenotypes of seed shape, generation, and fatty acid synthesis and accumulation. Knockout of TaWRI1L2 reduced grain size, 1000 grain weight, and grain fatty acid synthesis in bread wheat. Conclusively, TaWRI1L2, rather than TaWRI1L1, was the key transcriptional factor in the regulation of grain fatty acid synthesis in bread wheat. This study lays a foundation for gene regulation and genetic manipulation of fatty acid synthesis in wheat genetic breeding programs.
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Affiliation(s)
- Fengping Yang
- Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China; (F.Y.); (G.L.); (Z.W.); (D.Z.); (Y.Z.); (M.Y.); (B.L.)
- Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
| | - Guoyu Liu
- Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China; (F.Y.); (G.L.); (Z.W.); (D.Z.); (Y.Z.); (M.Y.); (B.L.)
| | - Ziyan Wu
- Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China; (F.Y.); (G.L.); (Z.W.); (D.Z.); (Y.Z.); (M.Y.); (B.L.)
| | - Dongxue Zhang
- Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China; (F.Y.); (G.L.); (Z.W.); (D.Z.); (Y.Z.); (M.Y.); (B.L.)
| | - Yufeng Zhang
- Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China; (F.Y.); (G.L.); (Z.W.); (D.Z.); (Y.Z.); (M.Y.); (B.L.)
| | - Mingshan You
- Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China; (F.Y.); (G.L.); (Z.W.); (D.Z.); (Y.Z.); (M.Y.); (B.L.)
| | - Baoyun Li
- Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China; (F.Y.); (G.L.); (Z.W.); (D.Z.); (Y.Z.); (M.Y.); (B.L.)
| | - Xiuhai Zhang
- Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
- Correspondence: (X.Z.); (R.L.)
| | - Rongqi Liang
- Key Laboratory of Crop Heterosis and Utilization (MOE) and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China; (F.Y.); (G.L.); (Z.W.); (D.Z.); (Y.Z.); (M.Y.); (B.L.)
- Correspondence: (X.Z.); (R.L.)
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10
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Yang Z, Wang Z, Wang W, Xie X, Chai L, Wang X, Feng X, Li J, Peng H, Su Z, You M, Yao Y, Xin M, Hu Z, Liu J, Liang R, Ni Z, Sun Q, Guo W. ggComp enables dissection of germplasm resources and construction of a multiscale germplasm network in wheat. Plant Physiol 2022; 188:1950-1965. [PMID: 35088857 PMCID: PMC8968352 DOI: 10.1093/plphys/kiac029] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 12/10/2021] [Indexed: 05/31/2023]
Abstract
Accurate germplasm characterization is a vital step for accelerating crop genetic improvement, which remains largely infeasible for crops such as bread wheat (Triticum aestivum L.), which has a complex genome that undergoes frequent introgression and contains many structural variations. Here, we propose a genomic strategy called ggComp, which integrates resequencing data with copy number variations and stratified single-nucleotide polymorphism densities to enable unsupervised identification of pairwise germplasm resource-based Identity-By-Descent (gIBD) blocks. The reliability of ggComp was verified in wheat cultivar Nongda5181 by dissecting parental-descent patterns represented by inherited genomic blocks. With gIBD blocks identified among 212 wheat accessions, we constructed a multi-scale genomic-based germplasm network. At the whole-genome level, the network helps to clarify pedigree relationship, demonstrate genetic flow, and identify key founder lines. At the chromosome level, we were able to trace the utilization of 1RS introgression in modern wheat breeding by hitchhiked segments. At the single block scale, the dissected germplasm-based haplotypes nicely matched with previously identified alleles of "Green Revolution" genes and can guide allele mining and dissect the trajectory of beneficial alleles in wheat breeding. Our work presents a model-based framework for precisely evaluating germplasm resources with genomic data. A database, WheatCompDB (http://wheat.cau.edu.cn/WheatCompDB/), is available for researchers to exploit the identified gIBDs with a multi-scale network.
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Affiliation(s)
| | | | | | - Xiaoming Xie
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, Ministry of Education/Beijing Key Laboratory of Crop Genetic Improvement/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Lingling Chai
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, Ministry of Education/Beijing Key Laboratory of Crop Genetic Improvement/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Xiaobo Wang
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, Ministry of Education/Beijing Key Laboratory of Crop Genetic Improvement/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Xibo Feng
- Tibet Key Experiments of Crop Cultivation and Farming/College of Plant Science, Tibet Agriculture and Animal Husbandry University, Linzhi 860000, China
| | - Jinghui Li
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, Ministry of Education/Beijing Key Laboratory of Crop Genetic Improvement/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
- Wheat Center, Henan Institute of Science and Technology/Henan Provincial Key Laboratory of Hybrid Wheat, Xinxiang 453003, China
| | - Huiru Peng
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, Ministry of Education/Beijing Key Laboratory of Crop Genetic Improvement/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Zhenqi Su
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, Ministry of Education/Beijing Key Laboratory of Crop Genetic Improvement/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Mingshan You
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, Ministry of Education/Beijing Key Laboratory of Crop Genetic Improvement/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Yingyin Yao
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, Ministry of Education/Beijing Key Laboratory of Crop Genetic Improvement/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Mingming Xin
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, Ministry of Education/Beijing Key Laboratory of Crop Genetic Improvement/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Zhaorong Hu
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, Ministry of Education/Beijing Key Laboratory of Crop Genetic Improvement/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Jie Liu
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, Ministry of Education/Beijing Key Laboratory of Crop Genetic Improvement/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Rongqi Liang
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, Ministry of Education/Beijing Key Laboratory of Crop Genetic Improvement/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Zhongfu Ni
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, Ministry of Education/Beijing Key Laboratory of Crop Genetic Improvement/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Qixin Sun
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, Ministry of Education/Beijing Key Laboratory of Crop Genetic Improvement/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
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Hao S, Lou H, Wang H, Shi J, Liu D, Baogerile, Tao J, Miao S, Pei Q, Yu L, Wu M, Gao M, Zhao N, Dong J, You M, Xin M. Genome-Wide Association Study Reveals the Genetic Basis of Five Quality Traits in Chinese Wheat. Front Plant Sci 2022; 13:835306. [PMID: 35310636 PMCID: PMC8928432 DOI: 10.3389/fpls.2022.835306] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 02/14/2022] [Indexed: 09/10/2023]
Abstract
Bread wheat is a highly adaptable food crop grown extensively around the world and its quality genetic improvement has received wide attention. In this study, the genetic loci associated with five quality traits including protein content (PC), gluten content (GC), baking value (BV), grain hardness (HA), and sedimentation value (SV) in a population of 253 Chinese wheat grown in Inner Mongolia were investigated through genome wide association mapping. A total of 103 QTL containing 556 SNPs were significantly related to the five quality traits based on the phenotypic data collected from three environments and BLUP data. Of these QTL, 32 QTL were continuously detected under at least two experiments. Some QTL such as qBV3D.2/qHA3D.2 on 3D, qPC5A.3/qGC5A on 5A, qBV5D/qHA5D on 5D, qBV6B.2/qHA6B.3 on 6B, and qBV6D/qHA6D.1 on 6D were associated with multiple traits. In addition, distribution of favorable alleles of the stable QTL in the association panel and their effects on five quality traits were validated. Analysis of existing transcriptome data revealed that 34 genes were specifically highly expressed in grains during reproductive growth stages. The functions of these genes will be characterized in future experiments. This study provides novel insights into the genetic basis of quality traits in wheat.
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Affiliation(s)
- Shuiyuan Hao
- College of Agronomy, China Agricultural University, Beijing, China
- Safety Production and Early Warning Control Laboratory of Green Agricultural Products in Hetao Region, Hetao College, Bayannur, China
| | - Hongyao Lou
- Institute of Hybrid Wheat, Beijng Academy of Agriculture Forestry Sciences, Beijing, China
| | - Haiwei Wang
- Department of Agriculture, Hetao College, Bayannur, China
| | - Jinghong Shi
- Department of Agriculture, Hetao College, Bayannur, China
| | - Dan Liu
- Department of Medicine, Hetao College, Bayannur, China
| | - Baogerile
- Department of Library, Hetao College, Bayannur, China
| | - Jianguang Tao
- Bayannur City Meteorological Bureau, Bayannur, China
| | - Sanming Miao
- Bureau of Agriculture and Animal Husbandry of Linhe District of Bayannur, Bayannur, China
| | - Qunce Pei
- Bureau of Agriculture and Animal Husbandry of Linhe District of Bayannur, Bayannur, China
| | - Liangliang Yu
- Bayannur City Meteorological Bureau, Bayannur, China
| | - Min Wu
- Bureau of Agriculture and Animal Husbandry of Urat Middle Banner of Bayannur, Bayannur, China
| | - Ming Gao
- Department of Agriculture, Hetao College, Bayannur, China
| | - Naihu Zhao
- Department of Agriculture, Hetao College, Bayannur, China
| | - Jinchao Dong
- Department of Agriculture, Hetao College, Bayannur, China
| | - Mingshan You
- College of Agronomy, China Agricultural University, Beijing, China
| | - Mingming Xin
- College of Agronomy, China Agricultural University, Beijing, China
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13
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Wen S, Zhang M, Tu K, Fan C, Tian S, Bi C, Chen Z, Zhao H, Wei C, Shi X, Yu J, Sun Q, You M. A Major Quantitative Trait Loci Cluster Controlling Three Components of Yield and Plant Height Identified on Chromosome 4B of Common Wheat. Front Plant Sci 2022; 12:799520. [PMID: 35087558 PMCID: PMC8786729 DOI: 10.3389/fpls.2021.799520] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 12/03/2021] [Indexed: 06/14/2023]
Abstract
Wheat yield is not only affected by three components of yield, but also affected by plant height (PH). Identification and utilization of the quantitative trait loci (QTL) controlling these four traits is vitally important for breeding high-yielding wheat varieties. In this work, we conducted a QTL analysis using the recombinant inbred lines (RILs) derived from a cross between two winter wheat varieties of China, "Nongda981" (ND981) and "Nongda3097" (ND3097), exhibiting significant differences in spike number per unit area (SN), grain number per spike (GNS), thousand grain weight (TGW), and PH. A total of 11 environmentally stable QTL for these four traits were detected. Among them, four major and stable QTLs (QSn.cau-4B-1.1, QGns.cau-4B-1, QTgw.cau-4B-1.1, and QPh.cau-4B-1.2) explaining the highest phenotypic variance for SN, GNS, TGW, and PH, respectively, were mapped on the same genomic region of chromosome 4B and were considered a QTL cluster. The QTL cluster spanned a genetic distance of about 12.3 cM, corresponding to a physical distance of about 8.7 Mb. Then, the residual heterozygous line (RHL) was used for fine mapping of the QTL cluster. Finally, QSn.cau-4B-1.1, QGns.cau-4B-1, and QPh.cau-4B-1.2 were colocated to the physical interval of about 1.4 Mb containing 31 annotated high confidence genes. QTgw.cau-4B-1.1 was divided into two linked QTL with opposite effects. The elite NILs of the QTL cluster increased SN and PH by 55.71-74.82% and 14.73-23.54%, respectively, and increased GNS and TGW by 29.72-37.26% and 5.81-11.24% in two environments. Collectively, the QTL cluster for SN, GNS, TGW, and PH provides a theoretical basis for improving wheat yield, and the fine-mapping result will be beneficial for marker-assisted selection and candidate genes cloning.
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Affiliation(s)
- Shaozhe Wen
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Minghu Zhang
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Keling Tu
- Department of Plant Genetics and Breeding, College of Agriculture and Biotechnology, China Agricultural University, Beijing Innovation Center for Seed Technology (MOA), Beijing Key Laboratory of Crop Genetic Improvement, Beijing, China
| | - Chaofeng Fan
- Key Laboratory of Crop Germplasm Resources and Utilization, Ministry of Agriculture, National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Shuai Tian
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Chan Bi
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Zelin Chen
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Huanhuan Zhao
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Chaoxiong Wei
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Xintian Shi
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Jiazheng Yu
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Qixin Sun
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Mingshan You
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
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14
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Tian S, Zhang M, Li J, Wen S, Bi C, Zhao H, Wei C, Chen Z, Yu J, Shi X, Liang R, Xie C, Li B, Sun Q, Zhang Y, You M. Identification and Validation of Stable Quantitative Trait Loci for SDS-Sedimentation Volume in Common Wheat ( Triticum aestivum L.). Front Plant Sci 2021; 12:747775. [PMID: 34950162 PMCID: PMC8688774 DOI: 10.3389/fpls.2021.747775] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 11/08/2021] [Indexed: 06/02/2023]
Abstract
Sodium dodecyl sulfate-sedimentation volume is an important index to evaluate the gluten strength of common wheat and is closely related to baking quality. In this study, a total of 15 quantitative trait locus (QTL) for sodium dodecyl sulfate (SDS)-sedimentation volume (SSV) were identified by using a high-density genetic map including 2,474 single-nucleotide polymorphism (SNP) markers, which was constructed with a doubled haploid (DH) population derived from the cross between Non-gda3753 (ND3753) and Liangxing99 (LX99). Importantly, four environmentally stable QTLs were detected on chromosomes 1A, 2D, and 5D, respectively. Among them, the one with the largest effect was identified on chromosome 1A (designated as QSsv.cau-1A.1) explaining up to 39.67% of the phenotypic variance. Subsequently, QSsv.cau-1A.1 was dissected into two QTLs named as QSsv.cau-1A.1.1 and QSsv.cau-1A.1.2 by saturating the genetic linkage map of the chromosome 1A. Interestedly, favorable alleles of these two loci were from different parents. Due to the favorable allele of QSsv.cau-1A.1.1 was from the high-value parents ND3753 and revealed higher genetic effect, which explained 25.07% of the phenotypic variation, mapping of this locus was conducted by using BC3F1 and BC3F2 populations. By comparing the CS reference sequence, the physical interval of QSsv.cau-1A.1.1 was delimited into 14.9 Mb, with 89 putative high-confidence annotated genes. SSVs of different recombinants between QSsv.cau-1A.1.1 and QSsv.cau-1A.1 detected from DH and BC3F2 populations showed that these two loci had an obvious additive effect, of which the combination of two favorable loci had the high SSV, whereas recombinants with unfavorable loci had the lowest. These results provide further insight into the genetic basis of SSV and QSsv.cau-1A.1.1 will be an ideal target for positional cloning and wheat breeding programs.
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Affiliation(s)
- Shuai Tian
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization, The Ministry of Education, Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Minghu Zhang
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization, The Ministry of Education, Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Jinghui Li
- Wheat Center, Henan Institute of Science and Technology, Henan Provincial Key Laboratory of Hybrid Wheat, Xinxiang, China
| | - Shaozhe Wen
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization, The Ministry of Education, Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Chan Bi
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization, The Ministry of Education, Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Huanhuan Zhao
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization, The Ministry of Education, Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Chaoxiong Wei
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization, The Ministry of Education, Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Zelin Chen
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization, The Ministry of Education, Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Jiazheng Yu
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization, The Ministry of Education, Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Xintian Shi
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization, The Ministry of Education, Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Rongqi Liang
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization, The Ministry of Education, Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Chaojie Xie
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization, The Ministry of Education, Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Baoyun Li
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization, The Ministry of Education, Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Qixin Sun
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization, The Ministry of Education, Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
- National Plant Gene Research Centre, Beijing, China
| | - Yufeng Zhang
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization, The Ministry of Education, Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Mingshan You
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization, The Ministry of Education, Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
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15
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Xu X, Harvey-Samuel T, Yang J, You M, Alphey L. CRISPR/Cas9-based functional characterization of the pigmentation gene ebony in Plutella xylostella. Insect Mol Biol 2021; 30:615-623. [PMID: 34414615 DOI: 10.1111/imb.12730] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 07/26/2021] [Accepted: 08/15/2021] [Indexed: 06/13/2023]
Abstract
Body pigmentation is an important character of insects in adapting to biotic and abiotic environmental challenges. Additionally, based on the relative ease of screening, several genes involved in insect melanization have been used in classic genetic studies or as visual markers in constructing transgenic insects. Here, a homologue of the Bombyx mori melanization-inhibiting gene ebony, associated with the conversion of dopamine to N-β-alanyl dopamine, was identified in a global pest, Plutella xylostella. The CRISPR/Cas9 system was applied to generate multiple Pxebony knockout alleles which were crossed to produce a Pxebony knockout strain, showing darker pigmentation in larvae, pupae and adults, compared with wildtype. Interestingly, we observed that Pxebony heterozygotes displayed an intermediate darkened phenotype, indicating partial dominance between the knockout and wildtype alleles. The fitness costs of Pxebony deficiency were also assessed in the mutant strain, indicating that embryo hatchability and larval survival were significantly reduced, while the eclosion rate was not obviously affected. Our work provides a potential target for exploring CRISPR-based genetics-control systems in this economically important pest lepidopteran.
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Affiliation(s)
- X Xu
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou, China
- Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China
- Key Laboratory of Integrated Pest Management for Fujian-Taiwan Crops, Ministry of Agriculture, Fuzhou, China
| | - T Harvey-Samuel
- Arthropod Genetics Group, The Pirbright Institute, Woking, UK
| | - J Yang
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou, China
- Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China
- Key Laboratory of Integrated Pest Management for Fujian-Taiwan Crops, Ministry of Agriculture, Fuzhou, China
| | - M You
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou, China
- Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China
- Key Laboratory of Integrated Pest Management for Fujian-Taiwan Crops, Ministry of Agriculture, Fuzhou, China
| | - L Alphey
- Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China
- Arthropod Genetics Group, The Pirbright Institute, Woking, UK
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Abstract
Background/objectives According to the reported cases, more than 100 athletes were infected with severe acute respiratory syndrome coronavirus 2 in March 2020 alone, and this has created an increased interest in the effect of coronavirus disease (COVID-19) on athletes. This promoted us to study the spread of COVID-19 in athletes and formulate prevention strategies. Methodology We collected and analyzed the demographic information, such as nationality, sex, age, name, sport played, sport level, source and cause of infection, date of symptoms onset or confirmation of positive status, date of recovery, location of infection contraction, symptoms, and the people infected by the contracted athletes, of 521 infected athletes worldwide, as of the end of July, 2020. Results The cohort comprised 95.49% male athletes; 57.2% were aged 19–35 years, with the average age 23 years. Most of these cases emerged in March 2020 (27.3%) and June 2020 (30.1%), 90.8% of cases were active athletes and 74.2% were professional players, 45.2% of infected athletes exhibited mild symptoms and 30.6% of them were asymptomatic; however, 23.1% of the cases died, including cases aged less than 40 years. Most infected athletes represented soccer (46.6%), football (15.9%), and basketball (10.9%). Most of the infected athletes were from the United States, Western Europe, and Eastern Asia. The athletes primarily contracted the infection in the United States, Western Europe, and Japan. The spread of COVID-19 in these athletes primarily occurred during training- and game-related activities. More than 60% of the infected athletes were unaware of their source of infection. Conclusion It found that the halting of training and matches, isolation of athletes at home, and timely testing can effectively control the spread of COVID-19 among athletes, and it is recommended that athletes discontinue international travel, especially to countries with a high epidemic risk.
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Affiliation(s)
- M You
- Physical Education College, China University of Geosciences, 430074 Wuhan, Hubei, China
| | - H Liu
- Physical Education College, China University of Geosciences, 430074 Wuhan, Hubei, China
| | - Z Wu
- Physical Education College, China University of Geosciences, 430074 Wuhan, Hubei, China
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17
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Li L, Chai L, Xu H, Zhai H, Wang T, Zhang M, You M, Peng H, Yao Y, Hu Z, Xin M, Guo W, Sun Q, Chen X, Ni Z. Phenotypic characterization of the glossy1 mutant and fine mapping of GLOSSY1 in common wheat (Triticum aestivum L.). Theor Appl Genet 2021; 134:835-847. [PMID: 33404673 DOI: 10.1007/s00122-020-03734-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 11/18/2020] [Indexed: 05/14/2023]
Abstract
A novel wax locus GLOSSY1 was finely mapped to an approximately 308.1-kbp genomic interval on chromosome 2DS of wheat. The epicuticular wax, the outermost layer of aerial organs, gives plants their bluish-white (glaucous) appearance. Epicuticular wax is ubiquitous and provides an essential protective function against environmental stresses. In this study, we identified the glossy1 mutant on the basis of its glossy glume from an EMS population in the elite wheat (Triticum aestivum L.) cultivar Jimai22. The mutant had a dramatically different profile in total wax load and composition of individual wax constituents relative to the wild type, resulting in the increased cuticle permeability of glumes. The glossy glume phenotype was controlled by a single, semidominant locus mapping to the short arm of chromosome 2D, within a 308.1-kbp genomic interval that contained ten annotated protein-coding genes. These results pave the way for an in-depth analysis of the underlying genetic basis of wax formation patterns and enrich our understanding of mechanisms regulating wax metabolism.
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Affiliation(s)
- Linghong Li
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, the Ministry of Education/Key Laboratory of Crop Genetic Improvement, Beijing Municipality/China Agricultural University, Beijing, 100193, China
- National Plant Gene Research Centre, Beijing, 100193, China
| | - Lingling Chai
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, the Ministry of Education/Key Laboratory of Crop Genetic Improvement, Beijing Municipality/China Agricultural University, Beijing, 100193, China
- National Plant Gene Research Centre, Beijing, 100193, China
| | - Huanwen Xu
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, the Ministry of Education/Key Laboratory of Crop Genetic Improvement, Beijing Municipality/China Agricultural University, Beijing, 100193, China
- National Plant Gene Research Centre, Beijing, 100193, China
| | - Huijie Zhai
- School of Life Science and Technology, Henan Institute of Science and Technology, Xinxiang, 453003, China
| | - Tianya Wang
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, Changchun, 130024, China
| | - Mingyi Zhang
- Dryland Agricultural Research Centre, Shanxi Academy of Agricultural Sciences, Taiyuan, 030031, China
| | - Mingshan You
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, the Ministry of Education/Key Laboratory of Crop Genetic Improvement, Beijing Municipality/China Agricultural University, Beijing, 100193, China
- National Plant Gene Research Centre, Beijing, 100193, China
| | - Huiru Peng
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, the Ministry of Education/Key Laboratory of Crop Genetic Improvement, Beijing Municipality/China Agricultural University, Beijing, 100193, China
- National Plant Gene Research Centre, Beijing, 100193, China
| | - Yingyin Yao
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, the Ministry of Education/Key Laboratory of Crop Genetic Improvement, Beijing Municipality/China Agricultural University, Beijing, 100193, China
- National Plant Gene Research Centre, Beijing, 100193, China
| | - Zhaorong Hu
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, the Ministry of Education/Key Laboratory of Crop Genetic Improvement, Beijing Municipality/China Agricultural University, Beijing, 100193, China
- National Plant Gene Research Centre, Beijing, 100193, China
| | - Mingming Xin
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, the Ministry of Education/Key Laboratory of Crop Genetic Improvement, Beijing Municipality/China Agricultural University, Beijing, 100193, China
- National Plant Gene Research Centre, Beijing, 100193, China
| | - Weilong Guo
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, the Ministry of Education/Key Laboratory of Crop Genetic Improvement, Beijing Municipality/China Agricultural University, Beijing, 100193, China
- National Plant Gene Research Centre, Beijing, 100193, China
| | - Qixin Sun
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, the Ministry of Education/Key Laboratory of Crop Genetic Improvement, Beijing Municipality/China Agricultural University, Beijing, 100193, China
- National Plant Gene Research Centre, Beijing, 100193, China
| | - Xiyong Chen
- Hebei Crop Genetic Breeding Laboratory, Institute of Cereal and Oil Crops, Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang, 050035, China.
| | - Zhongfu Ni
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, the Ministry of Education/Key Laboratory of Crop Genetic Improvement, Beijing Municipality/China Agricultural University, Beijing, 100193, China.
- National Plant Gene Research Centre, Beijing, 100193, China.
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18
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Lou H, Zhang R, Liu Y, Guo D, Zhai S, Chen A, Zhang Y, Xie C, You M, Peng H, Liang R, Ni Z, Sun Q, Li B. Genome-wide association study of six quality-related traits in common wheat (Triticum aestivum L.) under two sowing conditions. Theor Appl Genet 2021; 134:399-418. [PMID: 33155062 DOI: 10.1007/s00122-020-03704-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Accepted: 10/08/2020] [Indexed: 05/20/2023]
Abstract
We identified genomic regions associated with six quality-related traits in wheat under two sowing conditions and analyzed the effects of multienvironment-significant SNPs on the stability of these traits. Grain quality affects the nutritional and commercial value of wheat (Triticum aestivum L.) and is a critical factor influencing consumer preferences for specific wheat varieties. Climate change is predicted to increase environmental stress and thereby reduce wheat quality. Here, we performed a genotyping assay involving the use of the wheat 90 K array in a genome-wide association study of six quality-related traits in 486 wheat accessions under two sowing conditions (normal and late sowing) over 4 years. We identified 64 stable quantitative trait loci (QTL), including 10 for grain protein content, 9 for wet gluten content, 4 for grain starch content, 14 for water absorption, 15 for dough stability time and 12 for grain hardness in wheat under two sowing conditions. These QTL harbored 175 single nucleotide polymorphisms (SNPs), explaining approximately 3-13% of the phenotypic variation in multiple environments. Some QTL on chromosomes 6A and 5D were associated with multiple traits simultaneously, and two (QNGPC.cau-6A, QNGH.cau-5D) harbored known genes, such as NAM-A1 for grain protein content and Pinb for grain hardness, whereas other QTL could facilitate gene discovery. Forty-three SNPs that were detected under late or both normal and late sowing conditions appear to be related to phenotypic stability. The effects of these SNP alleles were confirmed in the association population. The results of this study will be useful for further dissecting the genetic basis of quality-related traits in wheat and developing new wheat cultivars with desirable alleles to improve the stability of grain quality.
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Affiliation(s)
- Hongyao Lou
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, the Ministry of Education/Key Laboratory of Crop Genetic Improvement, Beijing Municipality/China Agricultural University, Beijing, 100193, China
| | - Runqi Zhang
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, the Ministry of Education/Key Laboratory of Crop Genetic Improvement, Beijing Municipality/China Agricultural University, Beijing, 100193, China
| | - Yitong Liu
- Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, Nanxincun 20, Xiangshan, Beijing, 100093, China
- University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Dandan Guo
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, the Ministry of Education/Key Laboratory of Crop Genetic Improvement, Beijing Municipality/China Agricultural University, Beijing, 100193, China
| | - Shanshan Zhai
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, the Ministry of Education/Key Laboratory of Crop Genetic Improvement, Beijing Municipality/China Agricultural University, Beijing, 100193, China
| | - Aiyan Chen
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, the Ministry of Education/Key Laboratory of Crop Genetic Improvement, Beijing Municipality/China Agricultural University, Beijing, 100193, China
| | - Yufeng Zhang
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, the Ministry of Education/Key Laboratory of Crop Genetic Improvement, Beijing Municipality/China Agricultural University, Beijing, 100193, China
| | - Chaojie Xie
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, the Ministry of Education/Key Laboratory of Crop Genetic Improvement, Beijing Municipality/China Agricultural University, Beijing, 100193, China
| | - Mingshan You
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, the Ministry of Education/Key Laboratory of Crop Genetic Improvement, Beijing Municipality/China Agricultural University, Beijing, 100193, China
| | - Huiru Peng
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, the Ministry of Education/Key Laboratory of Crop Genetic Improvement, Beijing Municipality/China Agricultural University, Beijing, 100193, China
| | - Rongqi Liang
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, the Ministry of Education/Key Laboratory of Crop Genetic Improvement, Beijing Municipality/China Agricultural University, Beijing, 100193, China
| | - Zhongfu Ni
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, the Ministry of Education/Key Laboratory of Crop Genetic Improvement, Beijing Municipality/China Agricultural University, Beijing, 100193, China
- National Plant Gene Research Centre, Beijing, 100193, China
| | - Qixin Sun
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, the Ministry of Education/Key Laboratory of Crop Genetic Improvement, Beijing Municipality/China Agricultural University, Beijing, 100193, China
- National Plant Gene Research Centre, Beijing, 100193, China
| | - Baoyun Li
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, the Ministry of Education/Key Laboratory of Crop Genetic Improvement, Beijing Municipality/China Agricultural University, Beijing, 100193, China.
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19
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Cai L, Cheng X, Qin J, Xu W, You M. Expression, purification and characterization of three odorant binding proteins from the diamondback moth, Plutella xylostella. Insect Mol Biol 2020; 29:531-544. [PMID: 32715559 DOI: 10.1111/imb.12664] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 06/13/2020] [Accepted: 07/18/2020] [Indexed: 06/11/2023]
Abstract
Odorant binding proteins (OBPs) are critical components in insect olfactory systems where they bind, solubilize and transport odorant molecules to receptors. Here, we cloned three OBPs (PxylGOBP1, PxylGOBP2 and PxylOBP24) from the diamondback moth, Plutella xylostella, one of the most destructive pests of cruciferous crops. These three OBPs were expressed in Escherichia coli as recombinant proteins, purified and characterized by fluorescence binding assays with 39 ligands including sex pheromone and plant-derived chemical compounds. PxylGOBP1 and PxylGOBP2 showed significantly different binding affinities to theses ligands, suggesting distinct binding preferences of these two general odorant binding proteins. PxylOBP24 showed no or extremely low binding activities to selected ligands, suggesting it may be involved in non-olfactory functions. Circular dichroism spectral results demonstrated that PxylGOBP1 and PxylGOBP2 shared similar secondary structures while PxylOBP24 was significantly different. This study improves our knowledge of insect OBPs, which will assist in a better understanding of insect olfactory system and developing more environmentally friendly pest control strategies for P. xylostella.
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Affiliation(s)
- L Cai
- State Key Laboratory of Ecological Pest Control for Fujian/Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou, China
- Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fuzhou, China
- Key Laboratory of Integrated Pest Management for Fujian-Taiwan Crops, Ministry of Agriculture, Fuzhou, China
| | - X Cheng
- State Key Laboratory of Ecological Pest Control for Fujian/Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou, China
- Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fuzhou, China
- Key Laboratory of Integrated Pest Management for Fujian-Taiwan Crops, Ministry of Agriculture, Fuzhou, China
| | - J Qin
- State Key Laboratory of Ecological Pest Control for Fujian/Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou, China
- Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fuzhou, China
- Key Laboratory of Integrated Pest Management for Fujian-Taiwan Crops, Ministry of Agriculture, Fuzhou, China
| | - W Xu
- Agricultural Sciences, College of Science, Health, Engineering and Education, Murdoch University, Murdoch, WA, Australia
| | - M You
- State Key Laboratory of Ecological Pest Control for Fujian/Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou, China
- Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fuzhou, China
- Key Laboratory of Integrated Pest Management for Fujian-Taiwan Crops, Ministry of Agriculture, Fuzhou, China
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20
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Casaletto K, Lindbergh C, Memel M, Staffaroni A, Elahi F, Weiner-Light S, You M, Fonseca C, Karydas A, Jacobs E, Dubal D, Yaffe K, Kramer J. Sexual dimorphism of physical activity on cognitive aging: Role of immune functioning. Brain Behav Immun 2020; 88:699-710. [PMID: 32387511 PMCID: PMC7416443 DOI: 10.1016/j.bbi.2020.05.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 05/04/2020] [Accepted: 05/04/2020] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVE Exercise is one of the most potent strategies available to support cognitive health with age, yet substantial variability exists. Sexual dimorphism is evident for brain and immune functioning, the latter being implicated as important pathway for exercise. We examined the moderating role of sex on the relationship between physical activity and systemic inflammatory and brain health outcomes in support of more personalized approaches to behavioral interventions. METHODS Our discovery cohort included 45 typically aging women matched on age (±5y) and education (±2y) to 45 men (mean age = 72.5; Clinical Dementia Rating = 0) who completed self-reported current physical activity (Physical Activity Scale for Elderly), blood draw, neuropsychological evaluation, and brain MRI. An independent sample of 45 typically aging women and 36 men who completed the same measures comprised a replication cohort. Plasma was analyzed for 11 proinflammatory cytokine and chemokine markers via MesoScale Discovery. RESULTS Discovery cohort: Reported physical activity did not differ between sexes (150 vs. 157, p = 0.72). There was a significant interaction between sex and physical activity on chemokine markers MDC, MIP-1b, MCP-4, and eotaxin-3 (ps < 0.03), with a similar trend for MCP-1 and INFγ (ps < 0.09). Men who reported greater activity demonstrated lower inflammatory markers, an effect attenuated-to-absent in women. An interaction between sex and physical activity was also observed for parahippocampal volumes (p = 0.02) and cognition (processing speed and visual memory; ps < 0.04). Again, the beneficial effect of physical activity on outcomes was present in men, but not women. Replication cohort analyses conferred a consistent effect of sex on the relationship between physical activity and immune markers; models examining neurobehavioral outcomes did not strongly replicate. Across cohorts, post-hoc models demonstrated an interaction between sex and activity-related inflammatory markers on total gray matter volume and visual memory. Men with higher inflammatory markers demonstrated poorer brain structure and function, whereas inflammatory markers did not strongly relate to neurobehavioral outcomes in women. CONCLUSIONS Greater physical activity was associated with lower markers of inflammation in clinically normal older men, but not women - an effect consistently replicated across cohorts. Additionally, men appeared disproportionately vulnerable to the adverse effects of peripheral inflammatory markers on brain structure and function compared to women. Immune activation may be a male-specific pathway through which exercise confers neurobehavioral benefit.
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Affiliation(s)
- K.B. Casaletto
- Memory and Aging Center, Department of Neurology, University of California, San Francisco,Weill Institute for Neurosciences, University of California, Santa Barbara
| | - C. Lindbergh
- Memory and Aging Center, Department of Neurology, University of California, San Francisco,Weill Institute for Neurosciences, University of California, Santa Barbara
| | - M. Memel
- San Francisco Veteran’s Affairs Medical Center, University of California, Santa Barbara
| | - A. Staffaroni
- Memory and Aging Center, Department of Neurology, University of California, San Francisco,Weill Institute for Neurosciences, University of California, Santa Barbara
| | - F. Elahi
- Memory and Aging Center, Department of Neurology, University of California, San Francisco,Weill Institute for Neurosciences, University of California, Santa Barbara
| | - S. Weiner-Light
- Memory and Aging Center, Department of Neurology, University of California, San Francisco,Weill Institute for Neurosciences, University of California, Santa Barbara
| | - M. You
- Memory and Aging Center, Department of Neurology, University of California, San Francisco,Weill Institute for Neurosciences, University of California, Santa Barbara
| | - C. Fonseca
- Memory and Aging Center, Department of Neurology, University of California, San Francisco,Weill Institute for Neurosciences, University of California, Santa Barbara
| | - A. Karydas
- Memory and Aging Center, Department of Neurology, University of California, San Francisco,Weill Institute for Neurosciences, University of California, Santa Barbara
| | - E. Jacobs
- Department of Psychological and Brain Sciences, University of California, Santa Barbara
| | - D.B. Dubal
- Weill Institute for Neurosciences, University of California, Santa Barbara
| | - K. Yaffe
- Memory and Aging Center, Department of Neurology, University of California, San Francisco,Weill Institute for Neurosciences, University of California, Santa Barbara,Department of Psychiatry, University of California, San Francisco
| | - J.H. Kramer
- Memory and Aging Center, Department of Neurology, University of California, San Francisco,Weill Institute for Neurosciences, University of California, Santa Barbara
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Yu S, You M, Yang W, Cheng C, Chang H, Yu H. 624 Red light emitting diode (LED) light treatment promotes memory through up-regulation of trpm4 in Zebrafish. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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22
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Li J, Wen S, Fan C, Zhang M, Tian S, Kang W, Zhao W, Bi C, Wang Q, Lu S, Guo W, Ni Z, Xie C, Sun Q, You M. Characterization of a major quantitative trait locus on the short arm of chromosome 4B for spike number per unit area in common wheat (Triticum aestivum L.). Theor Appl Genet 2020; 133:2259-2269. [PMID: 32347319 DOI: 10.1007/s00122-020-03595-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Accepted: 04/01/2020] [Indexed: 06/11/2023]
Abstract
An InDel marker closely linked with a major and stable quantitative trait locus (QTL) on chromosome 4BS, QSnpa.cau-4B, controlling spike number per unit area will benefit wheat yield improvement. Spike number per unit area (SNPA) is an essential yield-related trait, and analyzing its genetic basis is important for cultivar improvement in wheat (Triticum aestivum L.). In this study, we used the F2 population derived from a cross between two wheat accessions displaying significant differences in SNPA to perform quantitative trait locus (QTL) analysis. Through bulked segregant analysis, a major and stable QTL that explained 18.11-82.11% of the phenotypic variation was identified on chromosome 4BS. The QTL interval was validated using F4:5 and F6:7 families and narrowed it to a 24.91-38.36 Mb region of chromosome 4BS according to the 'Chinese Spring' reference genome sequence. In this region, variations in 16 genes caused amino acid changes and three genes were present in only one parent. Among these, we annotated a gene orthologous to TB1 in maize (Zea mays), namely TraesCS4B01G042700, which carried a 44-bp deletion in its promoter in the higher-SNPA parent. An InDel marker based on the insertion/deletion polymorphism was designed and used to diagnose the allelic distribution within a natural population. The frequency of the 44-bp deletion allele associated with higher SNPA was relatively low (13.24%), implying that this favorable allele has not been widely utilized and could be valuable for wheat yield improvement. In summary, we identified a major and stable QTL for SNPA and developed a diagnostic marker for the more-spiked trait, which will be beneficial for molecular-assisted breeding in wheat.
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Affiliation(s)
- Jinghui Li
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, Ministry of Education/Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193,, China
| | - Shaozhe Wen
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, Ministry of Education/Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193,, China
| | - Chaofeng Fan
- Key Laboratory of Crop Germplasm Resources and Utilization, Ministry of Agriculture, National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Minghu Zhang
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, Ministry of Education/Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193,, China
| | - Shuai Tian
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, Ministry of Education/Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193,, China
| | - Wenjing Kang
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, Ministry of Education/Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193,, China
| | - Wenxin Zhao
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, Ministry of Education/Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193,, China
| | - Chan Bi
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, Ministry of Education/Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193,, China
| | - Qiuyan Wang
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, Ministry of Education/Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193,, China
| | - Shuang Lu
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, Ministry of Education/Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193,, China
| | - Weilong Guo
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, Ministry of Education/Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193,, China
- National Plant Gene Research Centre, Beijing, 100193, China
| | - Zhongfu Ni
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, Ministry of Education/Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193,, China
- National Plant Gene Research Centre, Beijing, 100193, China
| | - Chaojie Xie
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, Ministry of Education/Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193,, China
| | - Qixin Sun
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, Ministry of Education/Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193,, China
- National Plant Gene Research Centre, Beijing, 100193, China
| | - Mingshan You
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, Ministry of Education/Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193,, China.
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Chen L, Cai Y, Li P, You M, Cheng Q, Lu Y, Gou W. Inoculation of exogenous lactic acid bacteria exerted a limited influence on the silage fermentation and bacterial community compositions of reed canary grass straw on the Qinghai-Tibetan Plateau. J Appl Microbiol 2020; 129:1163-1172. [PMID: 32392369 DOI: 10.1111/jam.14698] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 04/27/2020] [Accepted: 05/05/2020] [Indexed: 12/20/2022]
Abstract
AIMS This study evaluated the effects of exogenous lactic acid bacteria (LAB) on silage fermentation and bacterial community of reed canary grass (RCG) straw. METHODS AND RESULTS The leaf, stem and whole crop of RCG straw were separately ensiled in small bag silos, without (control) or with inoculation of two exogenous LAB (LP, Lactobacillus plantarum; LB, Lactobacillus buchneri), and stored at ambient temperature of <20°C. Inoculation of exogenous LAB decreased (P < 0·05) bacterial alpha diversity and shifted (P < 0·05) bacterial community compositions, but did not change (P> 0·05) the relative abundance of Lactobacillus. Particularly, inoculation of LB increased (P < 0·05) acetic acid and propionic acid contents, decreased (P < 0·05) butyric acid (BA) and ammonia-N contents, separated (P < 0·05) the bacterial community in silage. However, the exogenous LAB inoculated silages were characterized by main distribution of yeasts, presence of undesirable bacterial genera such as Clostridium and high levels of BA and ammonia-N. CONCLUSION Inoculation of exogenous LAB exerted a limited influence on the silage fermentation and bacterial community compositions of RCG straw on the Qinghai-Tibetan Plateau. SIGNIFICANCE AND IMPACT OF THE STUDY Commercial LAB inoculants are not always efficient on enhancing silage quality and stability. Thus, an alternative additive for inhibiting undesirable microbes during storage is important to improve RCG silage quality on the Qinghai-Tibetan Plateau.
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Affiliation(s)
- L Chen
- Sichuan Academy of Grassland Sciences, Chengdu, China
| | - Y Cai
- Japan International Research Center for Agricultural Science (JIRCAS), Ibaraki, Japan
| | - P Li
- Sichuan Academy of Grassland Sciences, Chengdu, China
| | - M You
- Sichuan Academy of Grassland Sciences, Chengdu, China
| | - Q Cheng
- Sichuan Academy of Grassland Sciences, Chengdu, China
| | - Y Lu
- Southwest University for Minzu, Chengdu, China
| | - W Gou
- Sichuan Academy of Grassland Sciences, Chengdu, China
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Guo D, Hou Q, Zhang R, Lou H, Li Y, Zhang Y, You M, Xie C, Liang R, Li B. Over-Expressing TaSPA-B Reduces Prolamin and Starch Accumulation in Wheat ( Triticum aestivum L.) Grains. Int J Mol Sci 2020; 21:E3257. [PMID: 32380646 PMCID: PMC7247331 DOI: 10.3390/ijms21093257] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 04/20/2020] [Accepted: 04/23/2020] [Indexed: 12/13/2022] Open
Abstract
Starch and prolamin composition and content are important indexes for determining the processing and nutritional quality of wheat (Triticum aestivum L.) grains. Several transcription factors (TFs) regulate gene expression during starch and protein biosynthesis in wheat. Storage protein activator (TaSPA), a member of the basic leucine zipper (bZIP) family, has been reported to activate glutenin genes and is correlated to starch synthesis related genes. In this study, we generated TaSPA-B overexpressing (OE) transgenic wheat lines. Compared with wild-type (WT) plants, the starch content was slightly reduced and starch granules exhibited a more polarized distribution in the TaSPA-B OE lines. Moreover, glutenin and ω- gliadin contents were significantly reduced, with lower expression levels of related genes (e.g., By15, Dx2, and ω-1,2 gliadin gene). RNA-seq analysis identified 2023 differentially expressed genes (DEGs). The low expression of some DEGs (e.g., SUSase, ADPase, Pho1, Waxy, SBE, SSI, and SS II a) might explain the reduction of starch contents. Some TFs involved in glutenin and starch synthesis might be regulated by TaSPA-B, for example, TaPBF was reduced in TaSPA-B OE-3 lines. In addition, dual-luciferase reporter assay indicated that both TaSPA-B and TaPBF could transactivate the promoter of ω-1,2 gliadin gene. These results suggest that TaSPA-B regulates a complex gene network and plays an important role in starch and protein biosynthesis in wheat.
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Affiliation(s)
- Dandan Guo
- Key Laboratory of Crop Heterosis and Utilization (MOE) of Ministry of Education, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China; (D.G.); (Q.H.); (R.Z.); (H.L.); (Y.L.); (Y.Z.); (M.Y.); (C.X.); (R.L.)
| | - Qiling Hou
- Key Laboratory of Crop Heterosis and Utilization (MOE) of Ministry of Education, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China; (D.G.); (Q.H.); (R.Z.); (H.L.); (Y.L.); (Y.Z.); (M.Y.); (C.X.); (R.L.)
- Beijing Engineering Research Center for Hybrid Wheat, Beijing Academy of Agricultural and Forestry Sciences, Beijing 100097, China
| | - Runqi Zhang
- Key Laboratory of Crop Heterosis and Utilization (MOE) of Ministry of Education, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China; (D.G.); (Q.H.); (R.Z.); (H.L.); (Y.L.); (Y.Z.); (M.Y.); (C.X.); (R.L.)
| | - Hongyao Lou
- Key Laboratory of Crop Heterosis and Utilization (MOE) of Ministry of Education, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China; (D.G.); (Q.H.); (R.Z.); (H.L.); (Y.L.); (Y.Z.); (M.Y.); (C.X.); (R.L.)
| | - Yinghui Li
- Key Laboratory of Crop Heterosis and Utilization (MOE) of Ministry of Education, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China; (D.G.); (Q.H.); (R.Z.); (H.L.); (Y.L.); (Y.Z.); (M.Y.); (C.X.); (R.L.)
- Institute of Evolution, University of Haifa, Mt. Carmel, Haifa 3498838, Israel
| | - Yufeng Zhang
- Key Laboratory of Crop Heterosis and Utilization (MOE) of Ministry of Education, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China; (D.G.); (Q.H.); (R.Z.); (H.L.); (Y.L.); (Y.Z.); (M.Y.); (C.X.); (R.L.)
| | - Mingshan You
- Key Laboratory of Crop Heterosis and Utilization (MOE) of Ministry of Education, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China; (D.G.); (Q.H.); (R.Z.); (H.L.); (Y.L.); (Y.Z.); (M.Y.); (C.X.); (R.L.)
| | - Chaojie Xie
- Key Laboratory of Crop Heterosis and Utilization (MOE) of Ministry of Education, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China; (D.G.); (Q.H.); (R.Z.); (H.L.); (Y.L.); (Y.Z.); (M.Y.); (C.X.); (R.L.)
| | - Rongqi Liang
- Key Laboratory of Crop Heterosis and Utilization (MOE) of Ministry of Education, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China; (D.G.); (Q.H.); (R.Z.); (H.L.); (Y.L.); (Y.Z.); (M.Y.); (C.X.); (R.L.)
| | - Baoyun Li
- Key Laboratory of Crop Heterosis and Utilization (MOE) of Ministry of Education, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China; (D.G.); (Q.H.); (R.Z.); (H.L.); (Y.L.); (Y.Z.); (M.Y.); (C.X.); (R.L.)
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Li L, Qi Z, Chai L, Chen Z, Wang T, Zhang M, You M, Peng H, Yao Y, Hu Z, Xin M, Guo W, Sun Q, Ni Z. The semidominant mutation w5 impairs epicuticular wax deposition in common wheat (Triticum aestivum L.). Theor Appl Genet 2020; 133:1213-1225. [PMID: 31965231 DOI: 10.1007/s00122-020-03543-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 01/10/2020] [Indexed: 05/14/2023]
Abstract
The semidominant EMS-induced mutant w5 affects epicuticular wax deposition and mapped to an approximately 194-kb region on chromosome 7DL. Epicuticular wax is responsible for the glaucous appearance of plants and protects against many biotic and abiotic stresses. In wheat (Triticum aestivum L.), β-diketone is a major component of epicuticular wax in adult plants and contributes to the glaucousness of the aerial organs. In the present study, we identified an ethyl methanesulfonate-induced epicuticular wax-deficient mutant from the elite wheat cultivar Jimai22. Compared to wild-type Jimai22, the mutant lacked β-diketone and failed to form the glaucous coating on all aerial organs. The mutant also had significantly increased in cuticle permeability, based on water loss and chlorophyll efflux. Genetic analysis indicated that the mutant phenotype is controlled by a single, semidominant gene on the long arm of chromosome 7D, which was not allelic to the known wax gene loci W1-W4, and was therefore designated W5. W5 was finely mapped to an ~ 194-kb region (flanked by the molecular markers SSR2 and STARP11) that harbored four annotated genes according to the reference genome of Chinese Spring (RefSeq v1.0). Collectively, these data will broaden the knowledge of the genetic basis underlying epicuticular wax deposition in wheat.
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Affiliation(s)
- Linghong Li
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, The Ministry of Education/Key Laboratory of Crop Genetic Improvement, Beijing Municipality/China Agricultural University, Beijing, 100193, China
- National Plant Gene Research Centre, Beijing, 100193, China
| | - Zhongqi Qi
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, The Ministry of Education/Key Laboratory of Crop Genetic Improvement, Beijing Municipality/China Agricultural University, Beijing, 100193, China
- National Plant Gene Research Centre, Beijing, 100193, China
| | - Lingling Chai
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, The Ministry of Education/Key Laboratory of Crop Genetic Improvement, Beijing Municipality/China Agricultural University, Beijing, 100193, China
- National Plant Gene Research Centre, Beijing, 100193, China
| | - Zhaoyan Chen
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, The Ministry of Education/Key Laboratory of Crop Genetic Improvement, Beijing Municipality/China Agricultural University, Beijing, 100193, China
- National Plant Gene Research Centre, Beijing, 100193, China
| | - Tianya Wang
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, Changchun, 130024, China
| | - Mingyi Zhang
- Dryland Agricultural Research Centre, Shanxi Academy of Agricultural Sciences, Taiyuan, 030031, China
| | - Mingshan You
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, The Ministry of Education/Key Laboratory of Crop Genetic Improvement, Beijing Municipality/China Agricultural University, Beijing, 100193, China
- National Plant Gene Research Centre, Beijing, 100193, China
| | - Huiru Peng
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, The Ministry of Education/Key Laboratory of Crop Genetic Improvement, Beijing Municipality/China Agricultural University, Beijing, 100193, China
- National Plant Gene Research Centre, Beijing, 100193, China
| | - Yingyin Yao
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, The Ministry of Education/Key Laboratory of Crop Genetic Improvement, Beijing Municipality/China Agricultural University, Beijing, 100193, China
- National Plant Gene Research Centre, Beijing, 100193, China
| | - Zhaorong Hu
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, The Ministry of Education/Key Laboratory of Crop Genetic Improvement, Beijing Municipality/China Agricultural University, Beijing, 100193, China
- National Plant Gene Research Centre, Beijing, 100193, China
| | - Mingming Xin
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, The Ministry of Education/Key Laboratory of Crop Genetic Improvement, Beijing Municipality/China Agricultural University, Beijing, 100193, China
- National Plant Gene Research Centre, Beijing, 100193, China
| | - Weilong Guo
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, The Ministry of Education/Key Laboratory of Crop Genetic Improvement, Beijing Municipality/China Agricultural University, Beijing, 100193, China
- National Plant Gene Research Centre, Beijing, 100193, China
| | - Qixin Sun
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, The Ministry of Education/Key Laboratory of Crop Genetic Improvement, Beijing Municipality/China Agricultural University, Beijing, 100193, China
- National Plant Gene Research Centre, Beijing, 100193, China
| | - Zhongfu Ni
- State Key Laboratory for Agrobiotechnology/Key Laboratory of Crop Heterosis and Utilization, The Ministry of Education/Key Laboratory of Crop Genetic Improvement, Beijing Municipality/China Agricultural University, Beijing, 100193, China.
- National Plant Gene Research Centre, Beijing, 100193, China.
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Singh P, You M, Lubinga S, Zhang Y. Real-world outcomes for patients with recurrent/metastatic squamous cell carcinoma of the head and neck (R/M SCCHN) treated with nivolumab. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz449.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Hou Q, Xu L, Liu G, Pang X, Wang X, Zhang Y, You M, Ni Z, Zhao Z, Liang R. Plant-mediated gene silencing of an essential olfactory-related Gqα gene enhances resistance to grain aphid in common wheat in greenhouse and field. Pest Manag Sci 2019; 75:1718-1725. [PMID: 30525312 DOI: 10.1002/ps.5292] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 10/26/2018] [Accepted: 12/01/2018] [Indexed: 06/09/2023]
Abstract
BACKGROUND Grain aphid (Sitobion avenae F.) is a dominant pest that limits cereal crop production around the globe. Gq proteins have important roles in signal transduction in insect olfaction. Plant-mediated RNA interference (RNAi) has been widely studied in insect control, but its application for the control wheat aphid in the field requires further study. Here, we used double-stranded (ds)RNA feeding to verify the potential of selected Gqα fragments for host-mediated RNAi, and then evaluated the effect of RNAi on aphid olfaction in transgenic wheat in the greenhouse and field. RESULTS Gqα gene was expressed in the aphid life cycle, and a 540 bp fragment shared 98.1% similarity with the reported sequence. dsGqα feeding reduced the expression of Gqα, and both reproduction and molting in the grain aphid. Feeding transgenic lines in the greenhouse downregulated expression of aphid Gqα, and significantly reduced reproduction and molting numbers. Furthermore, our field results indicate that transgenic lines have lower aphid numbers and higher 1000-grain weight than an unsprayed wild-type control. CONCLUSION Plant-mediated silencing of an essential olfactory-related Gqα gene could enhance resistance to grain aphid in common wheat in both the greenhouse and the field. © 2018 Society of Chemical Industry.
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Affiliation(s)
- Qiling Hou
- Key Laboratory of Crop Heterosis and Utilization (MOE)/Beijing Key Laboratory of Crop Genetic Improvement, College of Agriculture and Biotechnology, China Agricultural University, Beijing, China
| | - Lanjie Xu
- Key Laboratory of Crop Heterosis and Utilization (MOE)/Beijing Key Laboratory of Crop Genetic Improvement, College of Agriculture and Biotechnology, China Agricultural University, Beijing, China
| | - Guoyu Liu
- Key Laboratory of Crop Heterosis and Utilization (MOE)/Beijing Key Laboratory of Crop Genetic Improvement, College of Agriculture and Biotechnology, China Agricultural University, Beijing, China
| | - Xiaomeng Pang
- Key Laboratory of Crop Heterosis and Utilization (MOE)/Beijing Key Laboratory of Crop Genetic Improvement, College of Agriculture and Biotechnology, China Agricultural University, Beijing, China
| | - Xiao Wang
- Key Laboratory of Crop Heterosis and Utilization (MOE)/Beijing Key Laboratory of Crop Genetic Improvement, College of Agriculture and Biotechnology, China Agricultural University, Beijing, China
| | - Yufeng Zhang
- Key Laboratory of Crop Heterosis and Utilization (MOE)/Beijing Key Laboratory of Crop Genetic Improvement, College of Agriculture and Biotechnology, China Agricultural University, Beijing, China
| | - Mingshan You
- Key Laboratory of Crop Heterosis and Utilization (MOE)/Beijing Key Laboratory of Crop Genetic Improvement, College of Agriculture and Biotechnology, China Agricultural University, Beijing, China
| | - Zhongfu Ni
- Key Laboratory of Crop Heterosis and Utilization (MOE)/Beijing Key Laboratory of Crop Genetic Improvement, College of Agriculture and Biotechnology, China Agricultural University, Beijing, China
| | - Zhangwu Zhao
- Key Laboratory of Crop Heterosis and Utilization (MOE)/Beijing Key Laboratory of Crop Genetic Improvement, College of Agriculture and Biotechnology, China Agricultural University, Beijing, China
| | - Rongqi Liang
- Key Laboratory of Crop Heterosis and Utilization (MOE)/Beijing Key Laboratory of Crop Genetic Improvement, College of Agriculture and Biotechnology, China Agricultural University, Beijing, China
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Ye C, You M, Cheng G, Zhao L, Huang P, Tang J, Chen Y, Wang X. A puzzling pregnancy epulis with aggressive bone loss mimicking malignant neoplasm: A case report. J Stomatol Oral Maxillofac Surg 2019; 121:312-316. [PMID: 30981907 DOI: 10.1016/j.jormas.2019.04.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 04/02/2019] [Accepted: 04/03/2019] [Indexed: 02/05/2023]
Abstract
Epulis is a benign tumor, rarely involves aggressive alveolar bone resorption. This study reported a rare case of rapid growth of pregnancy epulis with extensive alveolar bone destruction and the management of this case. A 24-year old pregnant woman at 35 weeks and 1 day of gestation presented a large asymptomatic nodular mass with severe teeth loosening at the anterior mandibular region for 4 weeks. Radiographic examination showed extensive alveolar bone resorption around the affected teeth to the apical area. After delivery, the patient received an extended resection under general anesthesia. The final histopathological analysis revealed the diagnosis of epulis. In conclusion, the rapid growth of epulis during pregnancy mimicking malignant neoplasm with aggressive alveolar bone destruction was rare and puzzling. In such cases, the histopathological and immunohistochemical examinations are the only effective method to reach the correct diagnosis and clinician should proceed with high precaution.
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Affiliation(s)
- C Ye
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Periodotology, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China.
| | - M You
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Radiology, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China
| | - G Cheng
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Periodotology, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China
| | - L Zhao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Periodotology, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China
| | - P Huang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Periodotology, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China
| | - J Tang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Periodotology, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China
| | - Yu Chen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Pathology, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China
| | - X Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China.
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Zhang Y, Lou H, Guo D, Zhang R, Su M, Hou Z, Zhou H, Liang R, Xie C, You M, Li B. Identifying changes in the wheat kernel proteome under heat stress using iTRAQ. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.cj.2018.04.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Zhao Y, Sui X, Xu L, Liu G, Lu L, You M, Xie C, Li B, Ni Z, Liang R. Plant-mediated RNAi of grain aphid CHS1 gene confers common wheat resistance against aphids. Pest Manag Sci 2018; 74:2754-2760. [PMID: 29737050 DOI: 10.1002/ps.5062] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 04/29/2018] [Accepted: 04/30/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Chitin is an important component of the insect exoskeleton and peritrophic membrane. Chitin synthase 1 (CHS1) is a key enzyme in the chitin synthesis pathway, and has a role in insect molting and growth. Plant-mediated RNA interference (RNAi) has been used as a more target-specific and environmentally safe approach to prevent and control agricultural insects. The aims of this study were to use grain aphid (Sitobion avanae) CHS1 as the target gene and to produce transgenic wheat lines for aphid control via plant-mediated RNAi. RESULTS Expression levels of CHS1 changed at different developmental stages. After feeding on the representative T3 transgenic lines Tb5-2 and Tb10-3, CHS1 expression levels in grain aphid decreased by 50.29% and 45.32%, respectively; and total and molting aphid numbers reduced significantly, compared with controls. Consistent with this, aphid numbers in mixed natural populations reduced significantly in the respective T4 and T5 transgenic lines under field conditions, and T5 transgenic lines had higher grain weight compared with the unsprayed insecticide wild-type and insecticide-sprayed wild-type. CONCLUSION These results indicate that plant-mediated RNAi of the grain aphid CHS1 gene confers common wheat resistance against aphids. © 2018 Society of Chemical Industry.
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Affiliation(s)
- Yanjie Zhao
- Key Laboratory of Crop Heterosis and Utilization (MOE)/Beijing Key Laboratory of Crop Genetic Improvement, College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Xiaoyan Sui
- Key Laboratory of Crop Heterosis and Utilization (MOE)/Beijing Key Laboratory of Crop Genetic Improvement, College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Lanjie Xu
- Key Laboratory of Crop Heterosis and Utilization (MOE)/Beijing Key Laboratory of Crop Genetic Improvement, College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Guoyu Liu
- Key Laboratory of Crop Heterosis and Utilization (MOE)/Beijing Key Laboratory of Crop Genetic Improvement, College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Lihua Lu
- Key Laboratory of Crop Heterosis and Utilization (MOE)/Beijing Key Laboratory of Crop Genetic Improvement, College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Mingshan You
- Key Laboratory of Crop Heterosis and Utilization (MOE)/Beijing Key Laboratory of Crop Genetic Improvement, College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Chaojie Xie
- Key Laboratory of Crop Heterosis and Utilization (MOE)/Beijing Key Laboratory of Crop Genetic Improvement, College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Baoyun Li
- Key Laboratory of Crop Heterosis and Utilization (MOE)/Beijing Key Laboratory of Crop Genetic Improvement, College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Zhongfu Ni
- Key Laboratory of Crop Heterosis and Utilization (MOE)/Beijing Key Laboratory of Crop Genetic Improvement, College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Rongqi Liang
- Key Laboratory of Crop Heterosis and Utilization (MOE)/Beijing Key Laboratory of Crop Genetic Improvement, College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
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Freeman M, Gupte-Singh K, You M, Le T, Ritchings C, Rao S, Jang S. Assessment of real-world effectiveness of first-line (1L) nivolumab (NIVO) plus ipilimumab (IPI) or NIVO monotherapy for advanced melanoma: A retrospective cohort study. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy289.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Liu F, Li X, Yue H, Ji J, You M, Ding L, Fan H, Hou Y. TLR-Induced SMPD3 Defects Enhance Inflammatory Response of B Cell and Macrophage in the Pathogenesis of SLE. Scand J Immunol 2017; 86:377-388. [PMID: 28889482 DOI: 10.1111/sji.12611] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Accepted: 08/30/2017] [Indexed: 12/30/2022]
Abstract
B lymphocyte and macrophages may contribute to SLE pathogenesis through cytokine production after TLR stimulation. Emerging evidences suggested that defects of sphingolipid metabolism were responsible for SLE pathogenesis. However, it is not clear whether these defects exist in B cells and macrophages under SLE condition and whether TLR signalling pathway was related to the dysfunction of sphingolipid metabolism in SLE. Here, we demonstrated that the enzymes involved in the sphingolipid metabolism expressed abnormally in B cells from SLE patients and lupus-prone mice. Moreover, we found that TLR signalling induced the abnormal expression of sphingomyelin phosphodiesterase 3 (SMPD3), sphingosine-1-phosphate phosphatase 2 (SGPP2), ceramide kinase (CERK) and UDP glycosyltransferase 8 (UGT8), which were involved in sphingolipid metabolism. TLR signalling also induced the transportation of SMPD3 from Golgi apparatus. Furthermore, the dysfunction of SMPD3 enhanced TLR-induced inflammatory response of B cells and macrophages in turn. Thus, these findings provide an innovative direction and a new target for research and treatment of SLE.
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Affiliation(s)
- F Liu
- The State Key Laboratory of Pharmaceutical Biotechnology, Division of Immunology, Medical School, Nanjing University, Nanjing, China
| | - X Li
- The State Key Laboratory of Pharmaceutical Biotechnology, Division of Immunology, Medical School, Nanjing University, Nanjing, China
| | - H Yue
- The State Key Laboratory of Pharmaceutical Biotechnology, Division of Immunology, Medical School, Nanjing University, Nanjing, China
| | - J Ji
- The State Key Laboratory of Pharmaceutical Biotechnology, Division of Immunology, Medical School, Nanjing University, Nanjing, China
| | - M You
- The State Key Laboratory of Pharmaceutical Biotechnology, Division of Immunology, Medical School, Nanjing University, Nanjing, China
| | - L Ding
- The State Key Laboratory of Pharmaceutical Biotechnology, Division of Immunology, Medical School, Nanjing University, Nanjing, China
| | - H Fan
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Y Hou
- The State Key Laboratory of Pharmaceutical Biotechnology, Division of Immunology, Medical School, Nanjing University, Nanjing, China.,Jiangsu Key Laboratory of Molecular Medicine, Nanjing, China
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Saloner R, Casaletto KB, Marx G, Dutt S, Vanden Bussche AB, You M, Fox E, Stiver J, Kramer JH. Performance on a 1-week delayed recall task is associated with medial temporal lobe structures in neurologically normal older adults. Clin Neuropsychol 2017; 32:456-467. [PMID: 28856963 DOI: 10.1080/13854046.2017.1370134] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
OBJECTIVE Traditional episodic memory tests employ a delayed recall length ranging from 10 to 30 min. The neurobiological process of memory consolidation extends well beyond these time intervals, however, raising the possibility that these tests might not be fully sensitive to the subtle neurocognitive changes found in early disease or age-related decline. We aimed to determine the sensitivity of a 1-week delayed recall paradigm to medial temporal lobe (MTL) structure among neurologically normal older adults. METHODS One hundred and forty functionally intact, older adults (mean age = 75.8) completed a story recall test in which participants learned to 90% criterion. Recall was tested after 30-min and 1-week. Participants also completed a standardized list learning task with a 20-min delay (n = 129) and a structural brain MRI. The MTL, including the parahippocampal gyrus, hippocampus, and entorhinal, was our primary region of interest. RESULTS Controlling for age, education, gender and total intracranial volume, the standard 20- and 30-min recalls showed no significant relationship with MTL. In contrast, 1-week recall was uniquely associated with MTL structure (partial r = .24, p = .006), specifically entorhinal (partial r = .27; p = .001) and hippocampal (partial r = .21, p = .02) volumes. CONCLUSION Memory paradigms that utilize 1-week delays are more sensitive than standard paradigms to MTL volumes in neurologically normal older adults. Longer delay periods may improve detection of memory consolidation abilities associated with age-related, and potentially pathological, neurobehavioral change.
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Affiliation(s)
- R Saloner
- a Department of Neurology , University of California , San Francisco , CA , USA.,b Memory and Aging Center , University of California , San Francisco , CA , USA
| | - K B Casaletto
- a Department of Neurology , University of California , San Francisco , CA , USA.,b Memory and Aging Center , University of California , San Francisco , CA , USA
| | - G Marx
- a Department of Neurology , University of California , San Francisco , CA , USA.,b Memory and Aging Center , University of California , San Francisco , CA , USA
| | - S Dutt
- a Department of Neurology , University of California , San Francisco , CA , USA.,b Memory and Aging Center , University of California , San Francisco , CA , USA
| | - A B Vanden Bussche
- a Department of Neurology , University of California , San Francisco , CA , USA.,b Memory and Aging Center , University of California , San Francisco , CA , USA
| | - M You
- a Department of Neurology , University of California , San Francisco , CA , USA.,b Memory and Aging Center , University of California , San Francisco , CA , USA
| | - E Fox
- a Department of Neurology , University of California , San Francisco , CA , USA.,b Memory and Aging Center , University of California , San Francisco , CA , USA
| | - J Stiver
- a Department of Neurology , University of California , San Francisco , CA , USA.,b Memory and Aging Center , University of California , San Francisco , CA , USA
| | - J H Kramer
- a Department of Neurology , University of California , San Francisco , CA , USA.,b Memory and Aging Center , University of California , San Francisco , CA , USA
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Fan C, Zhai H, Wang H, Yue Y, Zhang M, Li J, Wen S, Guo G, Zeng Y, Ni Z, You M. Identification of QTLs controlling grain protein concentration using a high-density SNP and SSR linkage map in barley (Hordeum vulgare L.). BMC Plant Biol 2017; 17:122. [PMID: 28697758 PMCID: PMC5504602 DOI: 10.1186/s12870-017-1067-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2017] [Accepted: 06/25/2017] [Indexed: 05/25/2023]
Abstract
BACKGROUND Grain protein concentration (GPC) is a major determinant of quality in barley (Hordeum vulgare L.). Breeding barley cultivars with high GPC has practical value for feed and food properties. The aim of the present study was to identify quantitative trait loci (QTLs) for GPC that could be detected under multiple environments. RESULTS A population of 190 recombinant inbred lines (RILs) deriving from a cross between Chinese landrace ZGMLEL with high GPC (> 20%) and Australian cultivar Schooner was used for linkage and QTL analyses. The genetic linkage map spanned 2353.48 cM in length with an average locus interval of 2.33 cM. GPC was evaluated under six environments for the RIL population and the two parental lines. In total, six environmentally stable QTLs for GPC were detected on chromosomes 2H (1), 4H (1), 6H (1), and 7H (3) and the increasing alleles were derived from ZGMLEL. Notably, the three QTLs on chromosome 7H (QGpc.ZiSc-7H.1, QGpc.ZiSc-7H.2, and QGpc.ZiSc-7H.3) that linked in coupling phase were firstly identified. Moreover, the genetic effects of stable QTLs on chromosomes 2H, 6H and 7H were validated using near isogenic lines (NILs). CONCLUSIONS Collectively, the identified QTLs expanded our knowledge about the genetic basis of GPC in barley and could be selected to develop cultivars with high grain protein concentration.
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Affiliation(s)
- Chaofeng Fan
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193 China
- National Plant Gene Research Centre, Beijing, 100193 China
| | - Huijie Zhai
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193 China
- National Plant Gene Research Centre, Beijing, 100193 China
| | - Huifang Wang
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193 China
- National Plant Gene Research Centre, Beijing, 100193 China
| | - Yafei Yue
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193 China
- National Plant Gene Research Centre, Beijing, 100193 China
| | - Minghu Zhang
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193 China
- National Plant Gene Research Centre, Beijing, 100193 China
| | - Jinghui Li
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193 China
- National Plant Gene Research Centre, Beijing, 100193 China
| | - Shaozhe Wen
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193 China
- National Plant Gene Research Centre, Beijing, 100193 China
| | - Ganggang Guo
- Institute of Crop Science, Chinese Academy of Agriculture Sciences, Beijing, 100081 China
| | - Yawen Zeng
- Biotechnology and Genetic Resources Institute, Yunnan Academy of Agricultural Sciences, Kunming, 650205 China
| | - Zhongfu Ni
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193 China
- National Plant Gene Research Centre, Beijing, 100193 China
| | - Mingshan You
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193 China
- National Plant Gene Research Centre, Beijing, 100193 China
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You M, Chan Y, Lacap-Bugler DC, Huo YB, Gao W, Leung WK, Watt RM. Oral treponeme major surface protein: Sequence diversity and distributions within periodontal niches. Mol Oral Microbiol 2017; 32:455-474. [PMID: 28453906 DOI: 10.1111/omi.12185] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/24/2017] [Indexed: 12/19/2022]
Abstract
Treponema denticola and other species (phylotypes) of oral spirochetes are widely considered to play important etiological roles in periodontitis and other oral infections. The major surface protein (Msp) of T. denticola is directly implicated in several pathological mechanisms. Here, we have analyzed msp sequence diversity across 68 strains of oral phylogroup 1 and 2 treponemes; including reference strains of T. denticola, Treponema putidum, Treponema medium, 'Treponema vincentii', and 'Treponema sinensis'. All encoded Msp proteins contained highly conserved, taxon-specific signal peptides, and shared a predicted 'three-domain' structure. A clone-based strategy employing 'msp-specific' polymerase chain reaction primers was used to analyze msp gene sequence diversity present in subgingival plaque samples collected from a group of individuals with chronic periodontitis (n=10), vs periodontitis-free controls (n=10). We obtained 626 clinical msp gene sequences, which were assigned to 21 distinct 'clinical msp genotypes' (95% sequence identity cut-off). The most frequently detected clinical msp genotype corresponded to T. denticola ATCC 35405T , but this was not correlated to disease status. UniFrac and libshuff analysis revealed that individuals with periodontitis and periodontitis-free controls harbored significantly different communities of treponeme clinical msp genotypes (P<.001). Patients with periodontitis had higher levels of clinical msp genotype diversity than periodontitis-free controls (Mann-Whitney U-test, P<.05). The relative proportions of 'T. vincentii' clinical msp genotypes were significantly higher in the control group than in the periodontitis group (P=.018). In conclusion, our data clearly show that both healthy and diseased individuals commonly harbor a wide diversity of Treponema clinical msp genotypes within their subgingival niches.
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Affiliation(s)
- M You
- Department of Oral Radiology and State Key Laboratory of Oral Diseases, West China College of Stomatology, Sichuan University, Chengdu, China
| | - Y Chan
- Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Sai Ying Pun, Hong Kong SAR, China
| | - D C Lacap-Bugler
- School of Science, Faculty of Health and Environmental Sciences, Auckland University of Technology, Auckland, New Zealand
| | - Y-B Huo
- Zhujiang New Town Dental Clinic, Guanghua School and Hospital of Stomatology, Guangdong Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - W Gao
- Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Sai Ying Pun, Hong Kong SAR, China
| | - W K Leung
- Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Sai Ying Pun, Hong Kong SAR, China
| | - R M Watt
- Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Sai Ying Pun, Hong Kong SAR, China
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Zhang Y, Pan J, Huang X, Guo D, Lou H, Hou Z, Su M, Liang R, Xie C, You M, Li B. Differential effects of a post-anthesis heat stress on wheat (Triticum aestivum L.) grain proteome determined by iTRAQ. Sci Rep 2017; 7:3468. [PMID: 28615669 PMCID: PMC5471245 DOI: 10.1038/s41598-017-03860-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Accepted: 05/04/2017] [Indexed: 12/19/2022] Open
Abstract
Heat stress, a major abiotic stressor of wheat (Triticum aestivum L.), often results in reduced yield and decreased quality. In this study, a proteomic method, Tags for Relative and Absolute Quantitation Isobaric (iTRAQ), was adopted to analyze the protein expression profile changes among wheat cultivar Jing411 under heat stress. Results indicated that there were 256 different proteins expressed in Jing411 under heat stress. According to the result of gene annotation and functional classification, 239 proteins were annotated by 856 GO function entries, including growth and metabolism proteins, energy metabolism proteins, processing and storage proteins, defense-related proteins, signal transduction, unknown function proteins and hypothetical proteins. GO enrichment analysis suggested that the differentially expressed proteins in Jing411 under heat stress were mainly involved in stimulus response (67), abiotic stress response (26) and stress response (58), kinase activity (12), and transferase activity (12). Among the differentially expressed proteins in Jing411, 115 were attributed to 119 KEGG signaling/metabolic pathways. KEGG pathway enrichment analysis in Jing411 showed that heat stress mainly affected the starch and sucrose metabolism as well as protein synthesis pathway in the endoplasmic reticulum. The protein interaction network indicated that there were 8 differentially expressed proteins that could form an interaction network in Jing411.
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Affiliation(s)
- Yufeng Zhang
- Beijing Key Laboratory of Crop Genetic Improvement/Key Laboratory of Crop Heterosis & Utilization, Ministry of Education, College of Agronomy, China Agricultural University, Beijing, 100193, China
| | - Jiajia Pan
- Beijing Key Laboratory of Crop Genetic Improvement/Key Laboratory of Crop Heterosis & Utilization, Ministry of Education, College of Agronomy, China Agricultural University, Beijing, 100193, China
| | - Xiuwen Huang
- Beijing Key Laboratory of Crop Genetic Improvement/Key Laboratory of Crop Heterosis & Utilization, Ministry of Education, College of Agronomy, China Agricultural University, Beijing, 100193, China
| | - Dandan Guo
- Beijing Key Laboratory of Crop Genetic Improvement/Key Laboratory of Crop Heterosis & Utilization, Ministry of Education, College of Agronomy, China Agricultural University, Beijing, 100193, China
| | - Hongyao Lou
- Beijing Key Laboratory of Crop Genetic Improvement/Key Laboratory of Crop Heterosis & Utilization, Ministry of Education, College of Agronomy, China Agricultural University, Beijing, 100193, China
| | - Zhenghong Hou
- Beijing Key Laboratory of Crop Genetic Improvement/Key Laboratory of Crop Heterosis & Utilization, Ministry of Education, College of Agronomy, China Agricultural University, Beijing, 100193, China
| | - Meng Su
- Beijing Key Laboratory of Crop Genetic Improvement/Key Laboratory of Crop Heterosis & Utilization, Ministry of Education, College of Agronomy, China Agricultural University, Beijing, 100193, China
| | - Rongqi Liang
- Beijing Key Laboratory of Crop Genetic Improvement/Key Laboratory of Crop Heterosis & Utilization, Ministry of Education, College of Agronomy, China Agricultural University, Beijing, 100193, China
| | - Chaojie Xie
- Beijing Key Laboratory of Crop Genetic Improvement/Key Laboratory of Crop Heterosis & Utilization, Ministry of Education, College of Agronomy, China Agricultural University, Beijing, 100193, China
| | - Mingshan You
- Beijing Key Laboratory of Crop Genetic Improvement/Key Laboratory of Crop Heterosis & Utilization, Ministry of Education, College of Agronomy, China Agricultural University, Beijing, 100193, China
| | - Baoyun Li
- Beijing Key Laboratory of Crop Genetic Improvement/Key Laboratory of Crop Heterosis & Utilization, Ministry of Education, College of Agronomy, China Agricultural University, Beijing, 100193, China.
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Laborde S, Dosseville F, Wolf S, Martin T, You M. Consequences and antecedents of debilitative precompetitive emotions. Psychologie Française 2016. [DOI: 10.1016/j.psfr.2016.05.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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38
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Laptenok SP, Conyard J, Page PCB, Chan Y, You M, Jaffrey SR, Meech SR. Photoacid Behaviour in a Fluorinated Green Fluorescent Protein Chromophore: Ultrafast Formation of Anion and Zwitterion States. †. Chem Sci 2016; 7:5747-5752. [PMID: 28066538 PMCID: PMC5207226 DOI: 10.1039/c6sc02031c] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Accepted: 06/02/2016] [Indexed: 11/21/2022] Open
Abstract
The photophysics of the chromophore of the green fluorescent protein in Aequorea victoria (avGFP) are dominated by an excited state proton transfer reaction. In contrast the photophysics of the same chromophore in solution are dominated by radiationless decay, and photoacid behaviour is not observed. Here we show that modification of the pKa of the chromophore by fluorination leads to an excited state proton transfer on an extremely fast (50 fs) time scale. Such a fast rate suggests a barrierless proton transfer and the existence of a pre-formed acceptor site in the aqueous solution, which is supported by solvent and deuterium isotope effects. In addition, at lower pH, photochemical formation of the elusive zwitterion of the GFP chromophore is observed by means of an equally fast excited state proton transfer from the cation. The significance of these results for understanding and modifying the properties of fluorescent proteins are discussed.
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Affiliation(s)
- S. P. Laptenok
- School of Chemistry
, University of East Anglia
,
Norwich NR4 7TJ
, UK
.
| | - J. Conyard
- School of Chemistry
, University of East Anglia
,
Norwich NR4 7TJ
, UK
.
| | - P. C. Bulman Page
- School of Chemistry
, University of East Anglia
,
Norwich NR4 7TJ
, UK
.
| | - Y. Chan
- School of Chemistry
, University of East Anglia
,
Norwich NR4 7TJ
, UK
.
| | - M. You
- Department of Pharmacology Weill Medical College
, Cornell University
,
1300 York Avenue, Box 70
, New York
, NY 10065
, USA
| | - S. R. Jaffrey
- Department of Pharmacology Weill Medical College
, Cornell University
,
1300 York Avenue, Box 70
, New York
, NY 10065
, USA
| | - S. R. Meech
- School of Chemistry
, University of East Anglia
,
Norwich NR4 7TJ
, UK
.
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Litke JL, You M, Jaffrey SR. Developing Fluorogenic Riboswitches for Imaging Metabolite Concentration Dynamics in Bacterial Cells. Methods Enzymol 2016; 572:315-33. [PMID: 27241761 DOI: 10.1016/bs.mie.2016.03.021] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Genetically encoded small-molecule sensors are important tools for revealing the dynamics of metabolites and other small molecules in live cells over time. We recently developed RNA-based sensors that exhibit fluorescence in proportion to a small-molecule ligand. One class of these RNA-based sensors are termed Spinach riboswitches. These are RNAs that are based on naturally occurring riboswitches, but have been fused to the Spinach aptamer. The resulting RNA is a fluorogenic riboswitch, producing fluorescence upon binding the cognate small-molecule analyte. Here, we describe how to design and optimize these sensors by adjusting critical sequence elements, guided by structural insights from the Spinach aptamer. We provide a stepwise procedure to characterize sensors in vitro and to express sensors in bacteria for live-cell imaging of metabolites. Spinach riboswitch sensors offer a simple method for fluorescence measurement of a wide range of metabolites for which riboswitches exist, including nucleotides and their derivatives, amino acids, cofactors, cations, and anions.
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Affiliation(s)
- J L Litke
- Tri-Institutional Chemical Biology Program at Weill-Cornell Medical College, Rockefeller University, Memorial Sloan-Kettering Cancer Center, New York, NY, United States; Weill Medical College, Cornell University, New York, NY, United States
| | - M You
- Weill Medical College, Cornell University, New York, NY, United States
| | - S R Jaffrey
- Tri-Institutional Chemical Biology Program at Weill-Cornell Medical College, Rockefeller University, Memorial Sloan-Kettering Cancer Center, New York, NY, United States; Weill Medical College, Cornell University, New York, NY, United States.
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40
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Newman K, You M, Vasseur L. Diamondback Moth (Lepidoptera: Plutellidae) Exhibits Oviposition and Larval Feeding Preferences Among Crops, Wild plants, and Ornamentals as Host Plants. J Econ Entomol 2016; 109:644-648. [PMID: 26834144 DOI: 10.1093/jee/tow002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Diamondback moth, Plutella xylostella (L.) (Lepidoptera: Plutellidae), is an agricultural pest with high reproductive potential, widespread distribution, and high resistance to different types of insecticides. Although diamondback moth is a common research subject, questions remain regarding its spatial and temporal host plant usage patterns and preferences within agroecosystems. We examined the adult oviposition and larval feeding preferences of the diamondback moth to assess the potential of alternate host plants as either reservoirs or trap crops. Adult females and third and fourth instars were offered multiple plant species within the plant family Brassicaceae to examine contact preferences and larval ingestion rates. Adult oviposition and larval feeding preferences were identical, with garden cress (Lepidium sativum) (L.) highly preferred, followed by wintercress (Barbarea vulgaris) (L.) and black mustard (Brassica nigra) (L.). Ingestion rates varied among tested plants, with the lowest rate on black mustard and highest on aubretia (Aubretia deltoidea) (L.). Highly preferred plant species were determined to be unfavorable for larval growth and potentially lethal to neonates, suggesting their possible use as trap crops. Understanding ovipositional and larval feeding preferences of diamondback moth can also aid in the development of more accurate monitoring and control strategies for this pest.
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Cheng X, Chai L, Chen Z, Xu L, Zhai H, Zhao A, Peng H, Yao Y, You M, Sun Q, Ni Z. Identification and characterization of a high kernel weight mutant induced by gamma radiation in wheat (Triticum aestivum L.). BMC Genet 2015; 16:127. [PMID: 26511975 PMCID: PMC4625876 DOI: 10.1186/s12863-015-0285-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Accepted: 10/21/2015] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Inducing mutations are considered to be an effective way to create novel genetic variations and hence novel agronomical traits in wheat. This study was conducted to assess the genetic differences between Shi4185 and its mutant line Fu4185, produced by gamma radiation with larger grain, and to identify quantitative trait loci (QTLs) for thousand kernel weight (TKW). RESULTS Phenotypic analysis revealed that the TKW of Fu4185 was much higher than that of Shi4185 under five different environments. At the genomic level, 110 of 2019 (5.4%) simple sequence repeats (SSR) markers showed polymorphism between Shi4185 and Fu4185. Notably, 30% (33 out of 110) polymorphic SSR markers were located on the D-genome, which was higher than the percentage of polymorphisms among natural allohexaploid wheat genotypes, indicating that mutations induced by gamma radiation could be a potential resource to enrich the genetic diversity of wheat D-genome. Moreover, one QTL, QTkw.cau-5D, located on chromosome 5DL, with Fu4185 contributing favorable alleles, was detected under different environments, especially under high temperature conditions. CONCLUSIONS QTkw.cau-5D is an environmental stable QTL, which may be a desired target for genetic improvement of wheat kernel weight.
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Affiliation(s)
- Xuejiao Cheng
- State Key Laboratory for Agrobiotechnology and Key Laboratory of Crop Heterosis and Utilization (MOE) and Key Laboratory of Crop Genomics and Genetic Improvement (MOA), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Yuanmingyuan Xi Road No. 2, Haidian District, Beijing, 100193, China.
- Department of Plant Genetics and Breeding, China Agricultural University, Beijing, 100193, China.
- National Plant Gene Research Centre, Beijing, 100193, China.
| | - Lingling Chai
- State Key Laboratory for Agrobiotechnology and Key Laboratory of Crop Heterosis and Utilization (MOE) and Key Laboratory of Crop Genomics and Genetic Improvement (MOA), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Yuanmingyuan Xi Road No. 2, Haidian District, Beijing, 100193, China.
- Department of Plant Genetics and Breeding, China Agricultural University, Beijing, 100193, China.
- National Plant Gene Research Centre, Beijing, 100193, China.
| | - Zhaoyan Chen
- State Key Laboratory for Agrobiotechnology and Key Laboratory of Crop Heterosis and Utilization (MOE) and Key Laboratory of Crop Genomics and Genetic Improvement (MOA), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Yuanmingyuan Xi Road No. 2, Haidian District, Beijing, 100193, China.
- Department of Plant Genetics and Breeding, China Agricultural University, Beijing, 100193, China.
- National Plant Gene Research Centre, Beijing, 100193, China.
| | - Lu Xu
- State Key Laboratory for Agrobiotechnology and Key Laboratory of Crop Heterosis and Utilization (MOE) and Key Laboratory of Crop Genomics and Genetic Improvement (MOA), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Yuanmingyuan Xi Road No. 2, Haidian District, Beijing, 100193, China.
- Department of Plant Genetics and Breeding, China Agricultural University, Beijing, 100193, China.
- National Plant Gene Research Centre, Beijing, 100193, China.
| | - Huijie Zhai
- State Key Laboratory for Agrobiotechnology and Key Laboratory of Crop Heterosis and Utilization (MOE) and Key Laboratory of Crop Genomics and Genetic Improvement (MOA), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Yuanmingyuan Xi Road No. 2, Haidian District, Beijing, 100193, China.
- Department of Plant Genetics and Breeding, China Agricultural University, Beijing, 100193, China.
- National Plant Gene Research Centre, Beijing, 100193, China.
| | - Aiju Zhao
- Hebei Crop Genetic Breeding Laboratory Institute of Cereal and Oil Crops, Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang, 050035, China.
| | - Huiru Peng
- State Key Laboratory for Agrobiotechnology and Key Laboratory of Crop Heterosis and Utilization (MOE) and Key Laboratory of Crop Genomics and Genetic Improvement (MOA), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Yuanmingyuan Xi Road No. 2, Haidian District, Beijing, 100193, China.
- Department of Plant Genetics and Breeding, China Agricultural University, Beijing, 100193, China.
- National Plant Gene Research Centre, Beijing, 100193, China.
| | - Yingyin Yao
- State Key Laboratory for Agrobiotechnology and Key Laboratory of Crop Heterosis and Utilization (MOE) and Key Laboratory of Crop Genomics and Genetic Improvement (MOA), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Yuanmingyuan Xi Road No. 2, Haidian District, Beijing, 100193, China.
- Department of Plant Genetics and Breeding, China Agricultural University, Beijing, 100193, China.
- National Plant Gene Research Centre, Beijing, 100193, China.
| | - Mingshan You
- State Key Laboratory for Agrobiotechnology and Key Laboratory of Crop Heterosis and Utilization (MOE) and Key Laboratory of Crop Genomics and Genetic Improvement (MOA), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Yuanmingyuan Xi Road No. 2, Haidian District, Beijing, 100193, China.
- Department of Plant Genetics and Breeding, China Agricultural University, Beijing, 100193, China.
- National Plant Gene Research Centre, Beijing, 100193, China.
| | - Qixin Sun
- State Key Laboratory for Agrobiotechnology and Key Laboratory of Crop Heterosis and Utilization (MOE) and Key Laboratory of Crop Genomics and Genetic Improvement (MOA), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Yuanmingyuan Xi Road No. 2, Haidian District, Beijing, 100193, China.
- Department of Plant Genetics and Breeding, China Agricultural University, Beijing, 100193, China.
- National Plant Gene Research Centre, Beijing, 100193, China.
| | - Zhongfu Ni
- State Key Laboratory for Agrobiotechnology and Key Laboratory of Crop Heterosis and Utilization (MOE) and Key Laboratory of Crop Genomics and Genetic Improvement (MOA), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Yuanmingyuan Xi Road No. 2, Haidian District, Beijing, 100193, China.
- Department of Plant Genetics and Breeding, China Agricultural University, Beijing, 100193, China.
- National Plant Gene Research Centre, Beijing, 100193, China.
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Abstract
OBJECTIVES To illustrate characteristic features of adenomatoid odontogenic tumour (AOT) on CBCT. METHODS The archived CBCT and panoramic radiographs of eight patients histopathologically diagnosed as AOT were analysed. The radiographic features displayed on both radiographic images were carefully described and compared. RESULTS All eight AOT cases presented as unilocular and well-demarcated lesions on both CBCT and panoramic images. CBCT images displayed three-dimensional interpretation of AOT lesions, especially the detailed intralesional radiopacities. Numerous discrete radiopaque foci scattered in the lesion with evident contrast to the radiolucent background could be considered as one of the characteristic features of AOT on CBCT. CONCLUSIONS Compared with panoramic radiography, CBCT seems to possess better potential in diagnosing AOT.
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Affiliation(s)
- M Jiang
- 1 State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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Wilson IM, Vucic EA, Enfield KSS, Thu KL, Zhang YA, Chari R, Lockwood WW, Radulovich N, Starczynowski DT, Banáth JP, Zhang M, Pusic A, Fuller M, Lonergan KM, Rowbotham D, Yee J, English JC, Buys TPH, Selamat SA, Laird-Offringa IA, Liu P, Anderson M, You M, Tsao MS, Brown CJ, Bennewith KL, MacAulay CE, Karsan A, Gazdar AF, Lam S, Lam WL. EYA4 is inactivated biallelically at a high frequency in sporadic lung cancer and is associated with familial lung cancer risk. Oncogene 2013; 33:4464-73. [PMID: 24096489 PMCID: PMC4527534 DOI: 10.1038/onc.2013.396] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2013] [Revised: 07/30/2013] [Accepted: 08/06/2013] [Indexed: 02/07/2023]
Abstract
In an effort to identify novel biallelically inactivated tumor suppressor genes (TSG) in sporadic invasive and pre-invasive non-small cell lung cancer (NSCLC) genomes, we applied a comprehensive integrated multi-‘omics approach to investigate patient matched, paired NSCLC tumor and non-malignant parenchymal tissues. By surveying lung tumor genomes for genes concomitantly inactivated within individual tumors by multiple mechanisms, and by the frequency of disruption in tumors across multiple cohorts, we have identified a putative lung cancer TSG, Eyes Absent 4 (EYA4). EYA4 is frequently and concomitantly deleted, hypermethylated and underexpressed in multiple independent lung tumor data sets, in both major NSCLC subtypes, and in the earliest stages of lung cancer. We find not only that decreased EYA4 expression is associated with poor survival in sporadic lung cancers, but EYA4 SNPs are associated with increased familial cancer risk, consistent with EYA4’s proximity to the previously reported lung cancer susceptibility locus on 6q. Functionally, we find that EYA4 displays TSG-like properties with a role in modulating apoptosis and DNA repair. Cross examination of EYA4 expression across multiple tumor types suggests a cell type-specific tumorigenic role for EYA4, consistent with a tumor suppressor function in cancers of epithelial origin. This work shows a clear role for EYA4 as a putative TSG in NSCLC.
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Affiliation(s)
- I M Wilson
- Integrative Oncology Genetics Unit, British Columbia Cancer Research Centre, Vancouver, BC, Canada
| | - E A Vucic
- Integrative Oncology Genetics Unit, British Columbia Cancer Research Centre, Vancouver, BC, Canada
| | - K S S Enfield
- Integrative Oncology Genetics Unit, British Columbia Cancer Research Centre, Vancouver, BC, Canada
| | - K L Thu
- Integrative Oncology Genetics Unit, British Columbia Cancer Research Centre, Vancouver, BC, Canada
| | - Y A Zhang
- Hamon Center for Therapeutic Oncology Research, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - R Chari
- 1] Integrative Oncology Genetics Unit, British Columbia Cancer Research Centre, Vancouver, BC, Canada [2] Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - W W Lockwood
- 1] Integrative Oncology Genetics Unit, British Columbia Cancer Research Centre, Vancouver, BC, Canada [2] National Human Genome Research Institute, Cancer Genetics Branch, Bethesda, MD, USA
| | - N Radulovich
- Ontario Cancer Institute/Princess Margaret Hospital, Toronto, ON, Canada
| | - D T Starczynowski
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Research Foundation, Cincinnati, OH, USA
| | - J P Banáth
- Integrative Oncology Genetics Unit, British Columbia Cancer Research Centre, Vancouver, BC, Canada
| | - M Zhang
- Integrative Oncology Genetics Unit, British Columbia Cancer Research Centre, Vancouver, BC, Canada
| | - A Pusic
- Integrative Oncology Genetics Unit, British Columbia Cancer Research Centre, Vancouver, BC, Canada
| | - M Fuller
- Integrative Oncology Genetics Unit, British Columbia Cancer Research Centre, Vancouver, BC, Canada
| | - K M Lonergan
- Integrative Oncology Genetics Unit, British Columbia Cancer Research Centre, Vancouver, BC, Canada
| | - D Rowbotham
- Integrative Oncology Genetics Unit, British Columbia Cancer Research Centre, Vancouver, BC, Canada
| | - J Yee
- Department of Surgery, Vancouver General Hospital, Vancouver, BC, Canada
| | - J C English
- Department of Pathology, Vancouver General Hospital, Vancouver, BC, Canada
| | - T P H Buys
- Integrative Oncology Genetics Unit, British Columbia Cancer Research Centre, Vancouver, BC, Canada
| | - S A Selamat
- Department of Biochemistry and Molecular Biology, University of Southern California, Los Angeles, CA, USA
| | - I A Laird-Offringa
- Department of Biochemistry and Molecular Biology, University of Southern California, Los Angeles, CA, USA
| | - P Liu
- Medical College of Wisconsin Cancer Center, Milwaukee, WI, USA
| | - M Anderson
- Medical College of Wisconsin Cancer Center, Milwaukee, WI, USA
| | - M You
- Medical College of Wisconsin Cancer Center, Milwaukee, WI, USA
| | - M S Tsao
- Ontario Cancer Institute/Princess Margaret Hospital, Toronto, ON, Canada
| | - C J Brown
- Department of Medical Genetics, University of British Columbia, Life Sciences Centre, Vancouver, BC, Canada
| | - K L Bennewith
- Integrative Oncology Genetics Unit, British Columbia Cancer Research Centre, Vancouver, BC, Canada
| | - C E MacAulay
- Integrative Oncology Genetics Unit, British Columbia Cancer Research Centre, Vancouver, BC, Canada
| | - A Karsan
- Integrative Oncology Genetics Unit, British Columbia Cancer Research Centre, Vancouver, BC, Canada
| | - A F Gazdar
- Hamon Center for Therapeutic Oncology Research, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - S Lam
- Integrative Oncology Genetics Unit, British Columbia Cancer Research Centre, Vancouver, BC, Canada
| | - W L Lam
- Integrative Oncology Genetics Unit, British Columbia Cancer Research Centre, Vancouver, BC, Canada
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Wyatt G, Sikorskii A, Tamkus D, You M. Quality of life among advanced breast cancer patients with and without distant metastasis. Eur J Cancer Care (Engl) 2013; 22:272-80. [PMID: 23252474 PMCID: PMC3711236 DOI: 10.1111/ecc.12028] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/16/2012] [Indexed: 11/28/2022]
Abstract
This study presents the results of a secondary analysis of data collected during a trial of reflexology that aimed to improve health-related quality of life (HRQOL) among women with advanced breast cancer in treatment. A comparison of HRQOL (functioning, symptoms, spirituality) of those with (n = 298) and without (n = 87) distant metastasis is presented. Following the intake interview, 385 women were randomised to reflexology, lay foot manipulation or conventional care control, and were interviewed again at weeks 5 and 11. Those with distant metastasis were older, had fewer comorbid conditions, and a smaller proportion were employed. Longitudinal analysis of HRQOL at intake, 5 and 11 weeks revealed that those with distant metastasis had lower functioning and more pain; however, no differences were found on fatigue, nausea, shortness of breath, sleep quality, anxiety, depressive symptoms or spirituality. Despite advanced disease, 56% of all women in this study were below the clinical screening cut-off for depressive symptoms. These findings may indicate that patients with advanced breast cancer have adapted emotionally and spiritually; however, the management of physical symptoms remains a priority.
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Affiliation(s)
- G Wyatt
- College of Nursing, Michigan State University, East Lansing, MI 48824-1317, USA.
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Lubet R, Vedell P, Grubbs C, Bernard P, You M. Abstract P1-08-02: Gene expression changes in methylnitrosourea (MNU)-induced ER+ mammary cancers following short-term treatment of rats with SERMs (Tamoxifen and Arzoxifene). Cancer Res 2012. [DOI: 10.1158/0008-5472.sabcs12-p1-08-02] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
SERMs have proven to be highly effective in both therapy and prevention of ER+ breast cancers. Tamoxifen has been the most commonly used SERM, but arzoxifene (another high- affinity competitive SERM agonist) showed strong activity in early clinical trials against ER+ breast cancer; although further development was discontinued. Both SERMs have shown a dose dependent effect on prevention and therapy of rat mammary tumors in the ER+ MNU model of cancer. Of interest, the doses required for prevention was significantly lower than the doses required for therapy. In the present study, rats bearing mammary cancers induced by MNU were treated with tamoxifen (0.66, 3.3, 20 and 100 ppm in diet) or arzoxifene (3.0 ppm in diet) for 5 days. Global gene expression analysis showed that more than 100 genes were down-regulated and more than 100 genes were up-regulated (p < 0.05 and fold change >1.5) in cancers treated with tamoxifen doses > 3 ppm; and that many of these gene changes were dose dependent. The genes modulated by tamoxifen and arzoxifene were enriched in the cell cycle pathway that were related to chromosome condensation in prometaphase [including Aurora-A, Aurora-B, Bub1B, non-SMC condensing I complex, subunit H (BRRN1), Condensin, CAP-G, CAP-G/G2, CAP-H/H2, CAP-D2/D3, CAP-E, TOP2, Cyclin A, Cyclin B, CDK1, Histone H1 and inter-centromere protein (INCENP]. Employing a different set of tamoxifen treated samples, we were able to confirm that many of the same genes were modulated employing a quantitative RT-PCR assay. Finally, we will compare certain of the gene changes obtained in the animal model with gene changes observed in human neoadjuvant trials.
Citation Information: Cancer Res 2012;72(24 Suppl):Abstract nr P1-08-02.
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Affiliation(s)
- R Lubet
- National Cancer Institute, Bethesda, MD; Medical School of Wisconsin, Milwaukee, WI; Hunstman Cancer Center, Salt Lake City, UT; University of Alabama at Birmingham, AL
| | - P Vedell
- National Cancer Institute, Bethesda, MD; Medical School of Wisconsin, Milwaukee, WI; Hunstman Cancer Center, Salt Lake City, UT; University of Alabama at Birmingham, AL
| | - C Grubbs
- National Cancer Institute, Bethesda, MD; Medical School of Wisconsin, Milwaukee, WI; Hunstman Cancer Center, Salt Lake City, UT; University of Alabama at Birmingham, AL
| | - P Bernard
- National Cancer Institute, Bethesda, MD; Medical School of Wisconsin, Milwaukee, WI; Hunstman Cancer Center, Salt Lake City, UT; University of Alabama at Birmingham, AL
| | - M You
- National Cancer Institute, Bethesda, MD; Medical School of Wisconsin, Milwaukee, WI; Hunstman Cancer Center, Salt Lake City, UT; University of Alabama at Birmingham, AL
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Abstract
BACKGROUND AND OBJECTIVE Members of the phylum Synergistetes have previously been identified within periodontitis subgingival plaque and are considered putative periodontopathogens. This study compared the diversity of subginigval Synergistetes in a cohort of subjects with periodontitis (n = 10) vs. periodontitis-free controls (n = 10). MATERIAL AND METHODS Pooled subgingival plaque samples from all deep periodontal pockets or all sulci were collected from the periodontitis and periodontitis-free subjects, respectively. Bacterial 16S rRNA genes were PCR-amplified from purified subgingival plaque DNA using a Synergistetes 'selective' primer set. PCR products were cloned and sequenced to analyze the prevalence and diversity of Synergistetes operational taxonomic units (OTUs) present in plaque samples of both subject groups. RESULTS A total of 1030 non-chimeric 16S rRNA clones were obtained, of which 162 corresponded to members of the phylum Synergistetes. A significantly larger number of Synergistetes clones were obtained from periodontitis subgingival plaque than from periodontitis-free controls (25.4% vs. 5.9%, p < 0.001). All Synergistetes clones corresponded to cluster A oral Synergistetes, and fell into 31 OTUs (99% sequence identity cut-off). Twenty-nine Synergistetes OTUs were detected in the periodontitis group while eight were detected in the periodontitis-free group (p < 0.001). Five Synergistetes OTUs; including one OTU corresponding to the recently-characterized species Fretibacterium fastidiosum, were more prevalent in the periodontitis subjects (p < 0.05). CONCLUSION OTUs belonging to oral Synergistetes cluster A were more readily detectable and were more diverse in subgingival plaque from periodontitis subjects compared with periodontitis-free controls. Specific Synergistetes OTUs appear to be associated with periodontitis.
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Affiliation(s)
- M You
- Oral Diagnosis and Polyclinics, Prince Philip Dental Hospital, The University of Hong Kong, Hong Kong SAR, China
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Lubet RA, Grubbs CJ, Bode A, You M, Lu Y. P3-10-02: Gene Expression Changes in Methylnitrosourea (MNU)-Induced ER+ Mammary Cancers Following Short-Term Treatment of Rats with the Aromatase Inhibitor Vorozole. Cancer Res 2011. [DOI: 10.1158/0008-5472.sabcs11-p3-10-02] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Aromatase inhibitors have proven to be highly effective in both therapy and prevention of ER+ breast cancer. Vorozole (R83842), a high affinity competitive inhibitor of aromatase (similar to letrozole and anastrozole) showed strong activity in early clinical trials against ER+ breast cancer. Furthermore, vorozole was highly effective in the prevention and therapy of ER+ cancers in the MNU-mammary cancer model (Lubet, et al., Carcinogenesis 19, 1345, 1998). In the present study, rats bearing mammary cancers induced by MNU were exposed to vorozole (1.25 mg/kg BW/day) for 5 days. Global gene expression analysis showed that 162 genes were down-regulated and 180 genes up-regulated in cancers treated with vorozole (p < 0.05 and fold change > 1.5). The genes modulated by vorozole were compared with two additional sets of data. First, thirty-two genes and a number of pathways exhibited significantly concordant changes with aromatase inhibitors both in the animal model and in at least three of four published human data sets. In particular, differentially expressed genes enriched in the cell cycle pathway that were related to chromosome condensation in prometaphase [including Aurora-A, Aurora-B, Bub1B, non-SMC condensin I complex, subunit H (BRRN1), Condensin, CAP-G, CAP-G/G2, CAP-H/H2, CAP-D2/D3, CAP-E, TOP2, Cyclin A, Cyclin B, CDK1, Histone H1 and inner centromere protein (INCENP)] were downregulated after treatment with the aromatase inhibitor. These results appear to be in agreement with the strong anti-proliferative effects of aromatase inhibitors in both animal and clinical studies. A second comparison was with an in vitro study in which estrogen was removed from MCF-7 cells in culture. Decreases in genes related to the E2F1 transcription factor were observed. In our study, 13 modulated genes exhibited E2F-1 binding sites in their promoter regions, and 7 genes contained both ER binding and E2F binding sites. We were able to confirm modulation of the cell cycle related and E2F-related genes in a large independent set of human samples treated with anastrozole. The results on RNA changes for Bub 1B, Cyclin A and CDK-1 were verified by employing IHC analysis. In summary, gene changes observed in the rat closely paralleled gene changes associated with aromatase treatment and estrogen withdrawal in humans.
Citation Information: Cancer Res 2011;71(24 Suppl):Abstract nr P3-10-02.
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Affiliation(s)
- RA Lubet
- 1National Cancer Institute, Bethesda, MD; University of Alabama at Birmingham, Birmingham, AL; Hormel Institute, Austin, MN; Medical College of Wisconsin, Milwaukee, WI
| | - CJ Grubbs
- 1National Cancer Institute, Bethesda, MD; University of Alabama at Birmingham, Birmingham, AL; Hormel Institute, Austin, MN; Medical College of Wisconsin, Milwaukee, WI
| | - A Bode
- 1National Cancer Institute, Bethesda, MD; University of Alabama at Birmingham, Birmingham, AL; Hormel Institute, Austin, MN; Medical College of Wisconsin, Milwaukee, WI
| | - M You
- 1National Cancer Institute, Bethesda, MD; University of Alabama at Birmingham, Birmingham, AL; Hormel Institute, Austin, MN; Medical College of Wisconsin, Milwaukee, WI
| | - Y Lu
- 1National Cancer Institute, Bethesda, MD; University of Alabama at Birmingham, Birmingham, AL; Hormel Institute, Austin, MN; Medical College of Wisconsin, Milwaukee, WI
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Dinh V, You M, Savaraj N, Wu C, Kuo MT, Wangpaichitr M, Feun LG. Determining argininosuccinate synthetase (ASS) expression in patients with melanoma treated with arginine depleting therapy. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.10627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Savaraj N, You M, Wu C, Wangpaichitr M, Kuo MT, Feun LG. Arginine deprivation, autophagy, apoptosis (AAA) for the treatment of melanoma. Curr Mol Med 2010; 10:405-12. [PMID: 20459375 DOI: 10.2174/156652410791316995] [Citation(s) in RCA: 79] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2009] [Accepted: 08/12/2009] [Indexed: 01/27/2023]
Abstract
The majority of melanoma cells do not express argininosuccinate synthetase (ASS), and hence cannot synthesize arginine from citrulline. Their growth and proliferation depend on exogenous supply of arginine. Arginine degradation using arginine deiminase (ADI) leads to growth inhibition and eventually cell death while normal cell which express ASS can survive. This notion has been translated into clinical trial. Pegylated ADI (ADI-PEG20) has shown antitumor activity in melanoma. However, the sensitivity to ADI is different among ASS(-) melanoma cells. We have investigated and reviewed the signaling pathways which are affected by arginine deprivation and their consequences which lead to cell death. We have found that arginine deprivation inhibits mTOR signaling but leads to activation of MEK and ERK with no changes in BRAF. These changes most likely lead to autophagy, a possible mechanism to survive by recycling intracellular arginine. However apoptosis does occur which can be both caspase dependent or independent In order to increase the therapeutic efficacy of this form of treatment, one should consider adding other agent(s) which can drive the cells toward apoptosis or inhibit the autophagic process.
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Affiliation(s)
- N Savaraj
- VA Medical Center, Miami, FL 33125, USA.
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Feun LG, You M, Wu C, Wangpaichitr M, Kuo MT, Marini A, Jungbluth A, Savaraj N. Final results of phase II trial of pegylated arginine deiminase (ADI-PEG20) in metastatic melanoma (MM). J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.8528] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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