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Sweetalana, Mooney JA, Szpiech ZA. Genotypic and phenotypic consequences of domestication in dogs. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.01.592072. [PMID: 38746159 PMCID: PMC11092585 DOI: 10.1101/2024.05.01.592072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Runs of homozygosity (ROH) are genomic regions that arise when two copies of an identical ancestral haplotype are inherited from parents with a recent common ancestor. In this study, we performed a novel comprehensive analysis to infer genetic diversity among dogs and quantified the association between ROH and non-disease phenotypes. We found distinct patterns of genetic diversity across clades of breed dogs and elevated levels of long ROH, compared to non- domesticated dogs. These high levels of F ROH (inbreeding coefficient) are a consequence of recent inbreeding among domesticated dogs during breed establishment. We identified statistically significant associations between F ROH and height, weight, lifespan, muscled, white head, white chest, furnish, and length of fur. After correcting for population structure, we identified more than 45 genes across the three examined quantitative traits that exceeded the threshold for suggestive significance, indicating significant polygenic inheritance for the complex quantitative phenotypes in dogs.
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Wei H, Wang X, Zhang Z, Yang L, Zhang Q, Li Y, He H, Chen D, Zhang B, Zheng C, Leng Y, Cao X, Cui Y, Shi C, Liu Y, Lv Y, Ma J, He W, Liu X, Xu Q, Yuan Q, Yu X, Wang T, Qian H, Li X, Zhang B, Zhang H, Chen W, Guo M, Dai X, Wang Y, Zheng X, Guo L, Xie X, Qian Q, Shang L. Uncovering key salt-tolerant regulators through a combined eQTL and GWAS analysis using the super pan-genome in rice. Natl Sci Rev 2024; 11:nwae043. [PMID: 38650829 PMCID: PMC11034615 DOI: 10.1093/nsr/nwae043] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 01/21/2024] [Accepted: 01/24/2024] [Indexed: 04/25/2024] Open
Abstract
For sessile plants, gene expression plays a pivotal role in responding to salinity stress by activating or suppressing specific genes. However, our knowledge of genetic variations governing gene expression in response to salt stress remains limited in natural germplasm. Through transcriptome analysis of the Global Mini-Core Rice Collection consisting of a panel of 202 accessions, we identified 22 345 and 27 610 expression quantitative trait loci associated with the expression of 7787 and 9361 eGenes under normal and salt-stress conditions, respectively, leveraging the super pan-genome map. Notably, combined with genome-wide association studies, we swiftly pinpointed the potential candidate gene STG5-a major salt-tolerant locus known as qSTS5. Intriguingly, STG5 is required for maintaining Na+/K+ homeostasis by directly regulating the transcription of multiple members of the OsHKT gene family. Our study sheds light on how genetic variants influence the dynamic changes in gene expression responding to salinity stress and provides a valuable resource for the mining of salt-tolerant genes in the future.
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Affiliation(s)
- Hua Wei
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Xianmeng Wang
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Zhipeng Zhang
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Longbo Yang
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Qianqian Zhang
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Yilin Li
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Huiying He
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Dandan Chen
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Bin Zhang
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Chongke Zheng
- Institute of Wetland Agriculture and Ecology, Shandong Academy of Agricultural Sciences, Jinan 250100, China
| | - Yue Leng
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Xinglan Cao
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Yan Cui
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Chuanlin Shi
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Yifan Liu
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Yang Lv
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China
| | - Jie Ma
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China
| | - Wenchuang He
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Xiangpei Liu
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Qiang Xu
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Qiaoling Yuan
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Xiaoman Yu
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Tianyi Wang
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Hongge Qian
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Xiaoxia Li
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Bintao Zhang
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Hong Zhang
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Wu Chen
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Mingliang Guo
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Xiaofan Dai
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Yuexing Wang
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China
| | - Xiaoming Zheng
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Longbiao Guo
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China
| | - Xianzhi Xie
- Institute of Wetland Agriculture and Ecology, Shandong Academy of Agricultural Sciences, Jinan 250100, China
| | - Qian Qian
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China
- Yazhouwan National Laboratory, Sanya 572024, China
| | - Lianguang Shang
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
- Yazhouwan National Laboratory, Sanya 572024, China
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Chen N, Ma T, Xia S, Li C, Liu Y, Wang J, Qu G, Liu H, Zheng H, Yang L, Zou D, Wang J, Xin W. Mapping of Candidate Genes for Nitrogen Uptake and Utilization in Japonica Rice at Seedling Stage. Genes (Basel) 2024; 15:327. [PMID: 38540386 PMCID: PMC10970145 DOI: 10.3390/genes15030327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 02/27/2024] [Accepted: 02/29/2024] [Indexed: 06/14/2024] Open
Abstract
Nitrogen (N) is one of the essential nutrients for the growth and development of crops. The adequate application of N not only increases the yield of crops but also improves the quality of agricultural products, but the excessive application of N can cause many adverse effects on ecology and the environment. In this study, genome-wide association analysis (GWAS) was performed under low- and high-N conditions based on 788,396 SNPs and phenotypic traits relevant to N uptake and utilization (N content and N accumulation). A total of 75 QTLs were obtained using GWAS, which contained 811 genes. Of 811 genes, 281 genes showed different haplotypes, and 40 genes had significant phenotypic differences among different haplotypes. Of these 40 genes, 5 differentially expressed genes (Os01g0159250, Os02g0618200, Os02g0618400, Os02g0630300, and Os06g0619000) were finally identified as the more valuable candidate genes based on the transcriptome data sequenced from Longjing31 (low-N-tolerant variety) and Songjing 10 (low-N-sensitive variety) under low- and high-N treatments. These new findings enrich the genetic resources for N uptake and utilization in rice, as well as lay a theoretical foundation for improving the efficiency of N uptake and utilization in rice.
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Affiliation(s)
- Ning Chen
- College of Agriculture, Northeast Agricultural University, Harbin 150030, China; (N.C.); (T.M.); (S.X.); (Y.L.); (J.W.); (G.Q.); (H.L.); (H.Z.); (L.Y.); (D.Z.)
| | - Tianze Ma
- College of Agriculture, Northeast Agricultural University, Harbin 150030, China; (N.C.); (T.M.); (S.X.); (Y.L.); (J.W.); (G.Q.); (H.L.); (H.Z.); (L.Y.); (D.Z.)
| | - Sijia Xia
- College of Agriculture, Northeast Agricultural University, Harbin 150030, China; (N.C.); (T.M.); (S.X.); (Y.L.); (J.W.); (G.Q.); (H.L.); (H.Z.); (L.Y.); (D.Z.)
| | - Chengxin Li
- Harbin Academy of Agricultural Sciences, Harbin 150030, China;
| | - Yinuo Liu
- College of Agriculture, Northeast Agricultural University, Harbin 150030, China; (N.C.); (T.M.); (S.X.); (Y.L.); (J.W.); (G.Q.); (H.L.); (H.Z.); (L.Y.); (D.Z.)
| | - Jiaqi Wang
- College of Agriculture, Northeast Agricultural University, Harbin 150030, China; (N.C.); (T.M.); (S.X.); (Y.L.); (J.W.); (G.Q.); (H.L.); (H.Z.); (L.Y.); (D.Z.)
| | - Guize Qu
- College of Agriculture, Northeast Agricultural University, Harbin 150030, China; (N.C.); (T.M.); (S.X.); (Y.L.); (J.W.); (G.Q.); (H.L.); (H.Z.); (L.Y.); (D.Z.)
| | - Hualong Liu
- College of Agriculture, Northeast Agricultural University, Harbin 150030, China; (N.C.); (T.M.); (S.X.); (Y.L.); (J.W.); (G.Q.); (H.L.); (H.Z.); (L.Y.); (D.Z.)
| | - Hongliang Zheng
- College of Agriculture, Northeast Agricultural University, Harbin 150030, China; (N.C.); (T.M.); (S.X.); (Y.L.); (J.W.); (G.Q.); (H.L.); (H.Z.); (L.Y.); (D.Z.)
| | - Luomiao Yang
- College of Agriculture, Northeast Agricultural University, Harbin 150030, China; (N.C.); (T.M.); (S.X.); (Y.L.); (J.W.); (G.Q.); (H.L.); (H.Z.); (L.Y.); (D.Z.)
| | - Detang Zou
- College of Agriculture, Northeast Agricultural University, Harbin 150030, China; (N.C.); (T.M.); (S.X.); (Y.L.); (J.W.); (G.Q.); (H.L.); (H.Z.); (L.Y.); (D.Z.)
| | - Jingguo Wang
- College of Agriculture, Northeast Agricultural University, Harbin 150030, China; (N.C.); (T.M.); (S.X.); (Y.L.); (J.W.); (G.Q.); (H.L.); (H.Z.); (L.Y.); (D.Z.)
| | - Wei Xin
- College of Agriculture, Northeast Agricultural University, Harbin 150030, China; (N.C.); (T.M.); (S.X.); (Y.L.); (J.W.); (G.Q.); (H.L.); (H.Z.); (L.Y.); (D.Z.)
- Key Laboratory of Germplasm Enhancement and Physiology & Ecology of Food Crop in Cold Region, Ministry of Education, Northeast Agricultural University, Harbin 150030, China
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Sonsungsan P, Suratanee A, Buaboocha T, Chadchawan S, Plaimas K. Identification of Salt-Sensitive and Salt-Tolerant Genes through Weighted Gene Co-Expression Networks across Multiple Datasets: A Centralization and Differential Correlation Analysis. Genes (Basel) 2024; 15:316. [PMID: 38540375 PMCID: PMC10970189 DOI: 10.3390/genes15030316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 02/18/2024] [Accepted: 02/24/2024] [Indexed: 06/14/2024] Open
Abstract
Salt stress is a significant challenge that severely hampers rice growth, resulting in decreased yield and productivity. Over the years, researchers have identified biomarkers associated with salt stress to enhance rice tolerance. However, the understanding of the mechanism underlying salt tolerance in rice remains incomplete due to the involvement of multiple genes. Given the vast amount of genomics and transcriptomics data available today, it is crucial to integrate diverse datasets to identify key genes that play essential roles during salt stress in rice. In this study, we propose an integration of multiple datasets to identify potential key transcription factors. This involves utilizing network analysis based on weighted co-expression networks, focusing on gene-centric measurement and differential co-expression relationships among genes. Consequently, our analysis reveals 86 genes located in markers from previous meta-QTL analysis. Moreover, six transcription factors, namely LOC_Os03g45410 (OsTBP2), LOC_Os07g42400 (OsGATA23), LOC_Os01g13030 (OsIAA3), LOC_Os05g34050 (OsbZIP39), LOC_Os09g29930 (OsBIM1), and LOC_Os10g10990 (transcription initiation factor IIF), exhibited significantly altered co-expression relationships between salt-sensitive and salt-tolerant rice networks. These identified genes hold potential as crucial references for further investigation into the functions of salt stress response in rice plants and could be utilized in the development of salt-resistant rice cultivars. Overall, our findings shed light on the complex genetic regulation underlying salt tolerance in rice and contribute to the broader understanding of rice's response to salt stress.
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Affiliation(s)
- Pajaree Sonsungsan
- Program in Bioinformatics and Computational Biology, Graduate School, Chulalongkorn University, Bangkok 10330, Thailand;
| | - Apichat Suratanee
- Department of Mathematics, Faculty of Applied Science, King Mongkut’s University of Technology North Bangkok, Bangkok 10800, Thailand;
| | - Teerapong Buaboocha
- Center of Excellence in Molecular Crop, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand;
| | - Supachitra Chadchawan
- Center of Excellence in Environment and Plant Physiology (CEEPP), Department of Botany, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand;
- Omics Science and Bioinformatics Center, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Kitiporn Plaimas
- Omics Science and Bioinformatics Center, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
- Advanced Virtual and Intelligent Computing (AVIC) Center, Department of Mathematics and Computer Science, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
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Padmavathi G, Bangale U, Rao K, Balakrishnan D, Arun M, Singh RK, Sundaram RM. Progress and prospects in harnessing wild relatives for genetic enhancement of salt tolerance in rice. FRONTIERS IN PLANT SCIENCE 2024; 14:1253726. [PMID: 38371332 PMCID: PMC10870985 DOI: 10.3389/fpls.2023.1253726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 12/13/2023] [Indexed: 02/20/2024]
Abstract
Salt stress is the second most devastating abiotic stress after drought and limits rice production globally. Genetic enhancement of salinity tolerance is a promising and cost-effective approach to achieve yield gains in salt-affected areas. Breeding for salinity tolerance is challenging because of the genetic complexity of the response of rice plants to salt stress, as it is governed by minor genes with low heritability and high G × E interactions. The involvement of numerous physiological and biochemical factors further complicates this complexity. The intensive selection and breeding efforts targeted towards the improvement of yield in the green-revolution era inadvertently resulted in the gradual disappearance of the loci governing salinity tolerance and a significant reduction in genetic variability among cultivars. The limited utilization of genetic resources and narrow genetic base of improved cultivars have resulted in a plateau in response to salinity tolerance in modern cultivars. Wild species are an excellent genetic resource for broadening the genetic base of domesticated rice. Exploiting novel genes of underutilized wild rice relatives to restore salinity tolerance loci eliminated during domestication can result in significant genetic gain in rice cultivars. Wild species of rice, Oryza rufipogon and Oryza nivara, have been harnessed in the development of a few improved rice varieties like Jarava and Chinsura Nona 2. Furthermore, increased access to sequence information and enhanced knowledge about the genomics of salinity tolerance in wild relatives has provided an opportunity for the deployment of wild rice accessions in breeding programs, while overcoming the cross-incompatibility and linkage drag barriers witnessed in wild hybridization. Pre-breeding is another avenue for building material that are ready for utilization in breeding programs. Efforts should be directed towards systematic collection, evaluation, characterization, and deciphering salt tolerance mechanisms in wild rice introgression lines and deploying untapped novel loci to improve salinity tolerance in rice cultivars. This review highlights the potential of wild relatives of Oryza to enhance tolerance to salinity, track the progress of work, and provide a perspective for future research.
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Affiliation(s)
- Guntupalli Padmavathi
- Crop Improvement Section, Plant Breeding, ICAR-Indian Institute of Rice Research (ICAR-IIRR), Hyderabad, India
| | - Umakanth Bangale
- Crop Improvement Section, Plant Breeding, ICAR-Indian Institute of Rice Research (ICAR-IIRR), Hyderabad, India
| | - K. Nagendra Rao
- Genetics and Plant Breeding, Sugarcane Research Station, Vuyyuru, India
| | - Divya Balakrishnan
- Crop Improvement Section, Plant Breeding, ICAR-Indian Institute of Rice Research (ICAR-IIRR), Hyderabad, India
| | - Melekote Nagabhushan Arun
- Crop Production Section, Agronomy, ICAR-Indian Institute of Rice Research (ICAR-IIRR), Hyderabad, India
| | - Rakesh Kumar Singh
- Crop Diversification and Genetics Section, International Center for Biosaline Agriculture (ICBA), Dubai, United Arab Emirates
| | - Raman Meenakshi Sundaram
- Crop Improvement Section, Plant Breeding, ICAR-Indian Institute of Rice Research (ICAR-IIRR), Hyderabad, India
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Alsamman AM, H. Mousa K, Istanbuli T, Abd El-Maksoud MM, Tawkaz S, Hamwieh A. Unveiling the genetic basis of Fusarium wilt resistance in chickpea using GWAS analysis and characterization of candidate genes. Front Genet 2024; 14:1292009. [PMID: 38327700 PMCID: PMC10849131 DOI: 10.3389/fgene.2023.1292009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Accepted: 12/26/2023] [Indexed: 02/09/2024] Open
Abstract
Introduction: Chickpea is a legume crop that thrives in regions with semi-arid or temperate climates. Its seeds are an excellent source of proteins, carbohydrates, and minerals, especially high-quality proteins. Chickpea cultivation faces several challenges including Fusarium wilt (FW), a major fungal disease that significantly reduces productivity. Methods: In this study, a Genome-wide Association Analysis (GWAS) was conducted to identify multiple genomic loci associated with FW resistance in chickpea. We conducted a comprehensive evaluation of 180 chickpea genotypes for FW resistance across three distinct locations (Ethiopia, Tunisia, and Lebanon) during the 2-year span from 2015 to 2016. Disease infection measurements were recorded, and the wilt incidence of each genotype was calculated. We employed a set of 11,979 single nucleotide polymorphisms (SNPs) markers distributed across the entire chickpea genome for SNP genotyping. Population structure analysis was conducted to determine the genetic structure of the genotypes. Results and Discussion: The population structure unveiled that the analyzed chickpea germplasm could be categorized into four sub-populations. Notably, these sub-populations displayed diverse geographic origins. The GWAS identified 11 SNPs associated with FW resistance, dispersed across the genome. Certain SNPs were consistent across trials, while others were specific to particular environments. Chromosome CA2 harbored five SNP markers, CA5 featured two, and CA4, CA6, CA7, and CA8 each had one representative marker. Four SNPs demonstrated an association with FW resistance, consistently observed across a minimum of three distinct environments. These SNPs included SNP5826041, SNP5825086, SNP11063413, SNP5825195, which located in CaFeSOD, CaS13like, CaNTAQ1, and CaAARS genes, respectively. Further investigations were conducted to gain insights into the functions of these genes and their role in FW resistance. This progress holds promise for reducing the negative impact of the disease on chickpea production.
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Affiliation(s)
- Alsamman M. Alsamman
- International Center for Agricultural Research in the Dry Areas (ICARDA), Giza, Egypt
- Agricultural Research Center (ARC), Agricultural Genetic Engineering Research Institute (AGERI), Giza, Egypt
| | - Khaled H. Mousa
- International Center for Agricultural Research in the Dry Areas (ICARDA), Giza, Egypt
| | - Tawffiq Istanbuli
- International Center for Agricultural Research in the Dry Areas (ICARDA), Terbol, Lebanon
| | | | - Sawsan Tawkaz
- International Center for Agricultural Research in the Dry Areas (ICARDA), Giza, Egypt
| | - Aladdin Hamwieh
- International Center for Agricultural Research in the Dry Areas (ICARDA), Giza, Egypt
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Haq SAU, Bashir T, Roberts TH, Husaini AM. Ameliorating the effects of multiple stresses on agronomic traits in crops: modern biotechnological and omics approaches. Mol Biol Rep 2023; 51:41. [PMID: 38158512 DOI: 10.1007/s11033-023-09042-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 10/13/2023] [Indexed: 01/03/2024]
Abstract
While global climate change poses a significant environmental threat to agriculture, the increasing population is another big challenge to food security. To address this, developing crop varieties with increased productivity and tolerance to biotic and abiotic stresses is crucial. Breeders must identify traits to ensure higher and consistent yields under inconsistent environmental challenges, possess resilience against emerging biotic and abiotic stresses and satisfy customer demands for safer and more nutritious meals. With the advent of omics-based technologies, molecular tools are now integrated with breeding to understand the molecular genetics of genotype-based traits and develop better climate-smart crops. The rapid development of omics technologies offers an opportunity to generate novel datasets for crop species. Identifying genes and pathways responsible for significant agronomic traits has been made possible by integrating omics data with genetic and phenotypic information. This paper discusses the importance and use of omics-based strategies, including genomics, transcriptomics, proteomics and phenomics, for agricultural and horticultural crop improvement, which aligns with developing better adaptability in these crop species to the changing climate conditions.
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Affiliation(s)
- Syed Anam Ul Haq
- Genome Engineering and Societal Biotechnology Lab, Division of Plant Biotechnology, SKUAST-K, Shalimar, Srinagar, Jammu and Kashmir, 190025, India
| | - Tanzeel Bashir
- Genome Engineering and Societal Biotechnology Lab, Division of Plant Biotechnology, SKUAST-K, Shalimar, Srinagar, Jammu and Kashmir, 190025, India
| | - Thomas H Roberts
- Plant Breeding Institute, School of Life and Environmental Sciences, Faculty of Science, Sydney Institute of Agriculture, The University of Sydney, Eveleigh, Australia
| | - Amjad M Husaini
- Genome Engineering and Societal Biotechnology Lab, Division of Plant Biotechnology, SKUAST-K, Shalimar, Srinagar, Jammu and Kashmir, 190025, India.
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Zhu X, Chen L, Zhang Z, Li J, Zhang H, Li Z, Pan Y, Wang X. Genetic-based dissection of resistance to bacterial leaf streak in rice by GWAS. BMC PLANT BIOLOGY 2023; 23:396. [PMID: 37596557 PMCID: PMC10436437 DOI: 10.1186/s12870-023-04412-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 08/14/2023] [Indexed: 08/20/2023]
Abstract
BACKGROUND Rice is the second-largest food crop in the world and vulnerable to bacterial leaf streak disease. A thorough comprehension of the genetic foundation of agronomic traits was essential for effective implementation of molecular marker-assisted selection. RESULTS Our study aimed to evaluate the vulnerability of rice to bacterial leaf streak disease (BLS) induced by the gram-negative bacterium Xanthomonas oryzae pv. oryzicola (Xoc). In order to accomplish this, we first analyzed the population structure of 747 accessions and subsequently assessed their phenotypes 20 days after inoculation with a strain of Xoc, GX01. We conducted genome-wide association studies (GWAS) on a population of 747 rice accessions, consisting of both indica and japonica subpopulations, utilizing phenotypic data on resistance to bacterial leaf streak (RBLS) and sequence data. We identified a total of 20 QTLs associated with RBLS in our analysis. Through the integration of linkage mapping, sequence analysis, haplotype analysis, and transcriptome analysis, we were able to identify five potential candidate genes (OsRBLS1-OsRBLS5) that possess the potential to regulate RBLS in rice. In order to gain a more comprehensive understanding of the genetic mechanism behind resistance to bacterial leaf streak, we conducted tests on these genes in both the indica and japonica subpopulations, ultimately identifying superior haplotypes that suggest the potential utilization of these genes in breeding disease-resistant rice varieties. CONCLUSIONS The findings of our study broaden our comprehension of the genetic mechanisms underlying RBLS in rice and offer significant insights that can be applied towards genetic improvement and breeding of disease-resistant rice in rapidly evolving environmental conditions.
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Affiliation(s)
- Xiaoyang Zhu
- State Key Laboratory of Agrobiotechnology / Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China
| | - Lei Chen
- Hainan Yazhou Bay Seed Laboratory, Sanya, Hainan, 572025, People's Republic of China
- Guangxi Key Laboratory of Rice Genetics and Breeding, Rice Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, 530007, China
| | - Zhanying Zhang
- State Key Laboratory of Agrobiotechnology / Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China
| | - Jinjie Li
- State Key Laboratory of Agrobiotechnology / Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China
| | - Hongliang Zhang
- State Key Laboratory of Agrobiotechnology / Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China
| | - Zichao Li
- State Key Laboratory of Agrobiotechnology / Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China
| | - Yinghua Pan
- Hainan Yazhou Bay Seed Laboratory, Sanya, Hainan, 572025, People's Republic of China.
- Guangxi Key Laboratory of Rice Genetics and Breeding, Rice Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, 530007, China.
| | - Xueqiang Wang
- Hainan Yazhou Bay Seed Laboratory, Sanya, Hainan, 572025, People's Republic of China.
- Zhejiang Provincial Key Laboratory of Crop Genetic Resources, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China.
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9
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McNally KL, Henry A. Tools for using the International Rice Genebank to breed for climate-resilient varieties. PLoS Biol 2023; 21:e3002215. [PMID: 37410801 PMCID: PMC10353781 DOI: 10.1371/journal.pbio.3002215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Revised: 07/18/2023] [Indexed: 07/08/2023] Open
Abstract
Traditional rice varieties have been critical for developing improved stress-tolerant rice varieties. Tools to analyze the genome sequences of traditional varieties are accelerating the identification and deployment of genes conferring climate change resilience.
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Affiliation(s)
- Kenneth L. McNally
- Rice Breeding Innovations Department, International Rice Research Institute, Los Baños, Laguna, Philippines
| | - Amelia Henry
- Rice Breeding Innovations Department, International Rice Research Institute, Los Baños, Laguna, Philippines
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10
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Phetluan W, Wanchana S, Aesomnuk W, Adams J, Pitaloka MK, Ruanjaichon V, Vanavichit A, Toojinda T, Gray JE, Arikit S. Candidate genes affecting stomatal density in rice (Oryza sativa L.) identified by genome-wide association. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2023; 330:111624. [PMID: 36737006 DOI: 10.1016/j.plantsci.2023.111624] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 12/18/2022] [Accepted: 01/30/2023] [Indexed: 06/18/2023]
Abstract
Stomata regulate photosynthesis and water loss. They have been an active subject of research for centuries, but our knowledge of the genetic components that regulate stomatal development in crops remains very limited in comparison to the model plant Arabidopsis thaliana. Leaf stomatal density was found to vary by over 2.5-fold across a panel of 235 rice accessions. Using GWAS, we successfully identified five different QTLs associated with stomatal density on chromosomes 2, 3, 9, and 12. Forty-two genes were identified within the haplotype blocks corresponding to these QTLs. Of these, nine genes contained haplotypes that were associated with different stomatal densities. These include a gene encoding a trehalose-6-phosphate synthase, an enzyme that has previously been associated with altered stomatal density in Arabidopsis, and genes encoding a B-BOX zinc finger family protein, a leucine-rich repeat family protein, and the 40 S ribosomal protein S3a, none of which have previously been linked to stomatal traits. We investigated further and show that a closely related B-BOX protein regulates stomatal development in Arabidopsis. The results of this study provide information on genetic associations with stomatal density in rice. The QTLs and candidate genes may be useful in future breeding programs for low or high stomatal density and, consequently, improved photosynthetic capacity, water use efficiency, or drought tolerance.
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Affiliation(s)
- Watchara Phetluan
- Center for Agricultural Biotechnology, Kasetsart University, Kamphaeng Saen Campus, Nakhon Pathom 73140, Thailand; Center of Excellence on Agricultural Biotechnology: (AG-BIO/MHESI), Bangkok 10900, Thailand.
| | - Samart Wanchana
- National Center for Genetic Engineering and Biotechnology (BIOTEC), 113 Thailand Science Park, Pahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani 12120, Thailand.
| | - Wanchana Aesomnuk
- National Center for Genetic Engineering and Biotechnology (BIOTEC), 113 Thailand Science Park, Pahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani 12120, Thailand.
| | - Julian Adams
- Plants, Photosynthesis and Soil, School of Biosciences, University of Sheffield, Sheffield S102TN, United Kingdom.
| | - Mutiara K Pitaloka
- Rice Science Center, Kasetsart University, Kamphaeng Saen, Nakhon Pathom 73140, Thailand.
| | - Vinitchan Ruanjaichon
- National Center for Genetic Engineering and Biotechnology (BIOTEC), 113 Thailand Science Park, Pahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani 12120, Thailand.
| | - Apichart Vanavichit
- Rice Science Center, Kasetsart University, Kamphaeng Saen, Nakhon Pathom 73140, Thailand; Department of Agronomy, Faculty of Agriculture at Kamphaeng Saen, Kasetsart University, Nakhon Pathom 73140, Thailand.
| | - Theerayut Toojinda
- National Center for Genetic Engineering and Biotechnology (BIOTEC), 113 Thailand Science Park, Pahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani 12120, Thailand.
| | - Julie E Gray
- Plants, Photosynthesis and Soil, School of Biosciences, University of Sheffield, Sheffield S102TN, United Kingdom.
| | - Siwaret Arikit
- Rice Science Center, Kasetsart University, Kamphaeng Saen, Nakhon Pathom 73140, Thailand; Department of Agronomy, Faculty of Agriculture at Kamphaeng Saen, Kasetsart University, Nakhon Pathom 73140, Thailand.
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11
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Hong J, Su S, Wang L, Bai S, Xu J, Li Z, Betts N, Liang W, Wang W, Shi J, Zhang D. Combined genome-wide association study and epistasis analysis reveal multifaceted genetic architectures of plant height in Asian cultivated rice. PLANT, CELL & ENVIRONMENT 2023; 46:1295-1311. [PMID: 36734269 DOI: 10.1111/pce.14557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 01/08/2023] [Accepted: 02/01/2023] [Indexed: 06/18/2023]
Abstract
Plant height (PH) in rice (Oryza sativa) is an important trait for its adaptation and agricultural performance. Discovery of the semi-dwarf1 (SD1) mutation initiated the Green Revolution, boosting rice yield and fitness, but the underlying genetic regulation of PH in rice remains largely unknown. Here, we performed genome-wide association study (GWAS) and identified 12 non-repetitive QTL/genes regulating PH variation in 619 Asian cultivated rice accessions. One of these was an SD1 structural variant, not normally detected in standard GWAS analyses. Given the strong effect of SD1 on PH, we also divided 619 accessions into subgroups harbouring distinct SD1 haplotypes, and found a further 85 QTL/genes for PH, revealing genetic heterogeneity that may be missed by analysing a broad, diverse population. Moreover, we uncovered two epistatic interaction networks of PH-associated QTL/genes in the japonica (Geng)-dominant SD1NIP subgroup. In one of them, the hub QTL/gene qphSN1.4/GAMYB interacted with qphSN3.1/OsINO80, qphSN3.4/HD16/EL1, qphSN6.2/LOC_Os06g11130, and qphSN10.2/MADS56. Sequence variations in GAMYB and MADS56 were associated with their expression levels and PH variations, and MADS56 was shown to physically interact with MADS57 to coregulate expression of gibberellin (GA) metabolic genes OsGA2ox3 and Elongated Uppermost Internode1 (EUI1). Our study uncovered the multifaceted genetic architectures of rice PH, and provided novel and abundant genetic resources for breeding semi-dwarf rice and new candidates for further mechanistic studies on regulation of PH in rice.
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Affiliation(s)
- Jun Hong
- Joint International Research Laboratory of Metabolic and Developmental Sciences, State Key Laboratory of Hybrid Rice, School of Life Sciences and Biotechnology, Yazhou Bay Institute of Deepsea Sci-Tech, Shanghai Jiao Tong University, Shanghai, China
| | - Su Su
- Joint International Research Laboratory of Metabolic and Developmental Sciences, State Key Laboratory of Hybrid Rice, School of Life Sciences and Biotechnology, Yazhou Bay Institute of Deepsea Sci-Tech, Shanghai Jiao Tong University, Shanghai, China
| | - Li Wang
- Joint International Research Laboratory of Metabolic and Developmental Sciences, State Key Laboratory of Hybrid Rice, School of Life Sciences and Biotechnology, Yazhou Bay Institute of Deepsea Sci-Tech, Shanghai Jiao Tong University, Shanghai, China
| | - Shaoxing Bai
- Joint International Research Laboratory of Metabolic and Developmental Sciences, State Key Laboratory of Hybrid Rice, School of Life Sciences and Biotechnology, Yazhou Bay Institute of Deepsea Sci-Tech, Shanghai Jiao Tong University, Shanghai, China
| | - Jianlong Xu
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Zhikang Li
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Natalie Betts
- School of Agriculture, Food and Wine, University of Adelaide, Urrbrae, South Australia, Australia
| | - Wanqi Liang
- Joint International Research Laboratory of Metabolic and Developmental Sciences, State Key Laboratory of Hybrid Rice, School of Life Sciences and Biotechnology, Yazhou Bay Institute of Deepsea Sci-Tech, Shanghai Jiao Tong University, Shanghai, China
| | - Wensheng Wang
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jianxin Shi
- Joint International Research Laboratory of Metabolic and Developmental Sciences, State Key Laboratory of Hybrid Rice, School of Life Sciences and Biotechnology, Yazhou Bay Institute of Deepsea Sci-Tech, Shanghai Jiao Tong University, Shanghai, China
| | - Dabing Zhang
- Joint International Research Laboratory of Metabolic and Developmental Sciences, State Key Laboratory of Hybrid Rice, School of Life Sciences and Biotechnology, Yazhou Bay Institute of Deepsea Sci-Tech, Shanghai Jiao Tong University, Shanghai, China
- School of Agriculture, Food and Wine, University of Adelaide, Urrbrae, South Australia, Australia
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12
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Wang X, Zhao Y, Jiang C, Wang L, Chen L, Li F, Zhang Y, Pan Y, Zhang T. Evolution of different rice ecotypes and genetic basis of flooding adaptability in Deepwater rice by GWAS. BMC PLANT BIOLOGY 2022; 22:526. [PMID: 36376791 PMCID: PMC9661789 DOI: 10.1186/s12870-022-03924-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 11/04/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Rice is the world's second largest food crop and accelerated global climate change due to the intensification of human activities has a huge impact on rice. Research on the evolution of different rice ecotypes is essential for enhancing the adaptation of rice to the unpredictable environments. RESULTS The sequencing data of 868 cultivated and 140 wild rice accessions were used to study the domestication history and signatures of adaptation in the distinct rice ecotypes genome. The different populations had formed distinct rice ecotypes by phylogenetic analyses and were domesticated independently in the two subspecies of rice, especially deepwater and upland rice. The domestication history of distinct rice ecotypes was confirmed and the four predicted admixture events mainly involved gene flow between wild rice and cultivated rice. Importantly, we identified numerous selective sweeps that have occurred during the domestication of different rice ecotypes and one candidate gene (LOC_Os11g21804) for deepwater based on transcriptomic evidence. In addition, many regions of genomic differentiation between the different rice ecotypes were identified. Furthermore, the main reason for the increase in genetic diversity in the ecotypes of xian (indica) rice was the high proportion of alternative allele frequency in new mutations. Genome-wide association analysis revealed 28 QTLs associated with flood tolerance which contained 12 related cloned genes, and 20 candidate genes within 13 deepwater QTLs were identified by transcriptomic and haplotype analyses. CONCLUSIONS These results enhanced our understanding of domestication history in different rice ecotypes and provided valuable insights for genetic improvement and breeding of rice in the current changing environments.
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Affiliation(s)
- Xueqiang Wang
- Agronomy Department, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, People's Republic of China
- Hainan Yazhou Bay Seed Laboratory, Sanya, Hainan, 572025, People's Republic of China
- Hainan Institute of Zhejiang University, Sanya, Hainan, 572025, People's Republic of China
| | - Yan Zhao
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong, 271018, People's Republic of China
| | - Conghui Jiang
- Shandong Rice Research Institute, Shandong Academy of Agricultural Sciences, Jinan, 250100, China
| | - Libing Wang
- Hainan Yazhou Bay Seed Laboratory, Sanya, Hainan, 572025, People's Republic of China
| | - Lei Chen
- Rice Research Institute, Guangxi Academy of Agricultural Sciences/Guangxi Key Laboratory of Rice Genetics and Breeding, Nanning, 530007, Guangxi, China
| | - Fengmei Li
- Hainan Yazhou Bay Seed Laboratory, Sanya, Hainan, 572025, People's Republic of China
| | - Yanhong Zhang
- Institute of Nuclear and Biological Technologies, Xinjiang Academy of Agricultural Sciences, Urumqi, 830091, China
| | - Yinghua Pan
- Rice Research Institute, Guangxi Academy of Agricultural Sciences/Guangxi Key Laboratory of Rice Genetics and Breeding, Nanning, 530007, Guangxi, China.
| | - Tianzhen Zhang
- Agronomy Department, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, People's Republic of China.
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13
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Saeed S, Usman B, Shim SH, Khan SU, Nizamuddin S, Saeed S, Shoaib Y, Jeon JS, Jung KH. CRISPR/Cas-mediated editing of cis-regulatory elements for crop improvement. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2022; 324:111435. [PMID: 36031021 DOI: 10.1016/j.plantsci.2022.111435] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 08/22/2022] [Accepted: 08/23/2022] [Indexed: 06/15/2023]
Abstract
To improve future agricultural production, major technological advances are required to increase crop production and yield. Targeting the coding region of genes via the Clustered Regularly Interspaced Short Palindromic Repeats/CRISPR-associated Protein (CRISPR/Cas) system has been well established and has enabled the rapid generation of transgene-free plants, which can lead to crop improvement. The emergence of the CRISPR/Cas system has also enabled scientists to achieve cis-regulatory element (CRE) editing and, consequently, engineering endogenous critical CREs to modulate the expression of target genes. Recent genome-wide association studies have identified the domestication of natural CRE variants to regulate complex agronomic quantitative traits and have allowed for their engineering via the CRISPR/Cas system. Although engineering plant CREs can be advantageous to drive gene expression, there are still many limitations to its practical application. Here, we review the current progress in CRE editing and propose future strategies to effectively target CREs for transcriptional regulation for crop improvement.
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Affiliation(s)
- Sumbul Saeed
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Babar Usman
- Graduate School of Green-Bio Science & Crop Biotech Institute, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Su-Hyeon Shim
- Graduate School of Green-Bio Science & Crop Biotech Institute, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Shahid Ullah Khan
- Department of Biochemistry, Women Medical and Dental College, Khyber Medical University KPK, Pakistan
| | - Sabzoi Nizamuddin
- School of Engineering, RMIT University, Melbourne, Victoria 3001, Australia
| | - Sundus Saeed
- School of Engineering, Edith Cowan University, Joondalup, WA 6027, Australia
| | - Yasira Shoaib
- Graduate School of Green-Bio Science & Crop Biotech Institute, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Jong-Seong Jeon
- Graduate School of Green-Bio Science & Crop Biotech Institute, Kyung Hee University, Yongin 17104, Republic of Korea.
| | - Ki-Hong Jung
- Graduate School of Green-Bio Science & Crop Biotech Institute, Kyung Hee University, Yongin 17104, Republic of Korea.
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14
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Ju C, Ma X, Han B, Zhang W, Zhao Z, Geng L, Cui D, Han L. Candidate gene discovery for salt tolerance in rice ( Oryza sativa L.) at the germination stage based on genome-wide association study. FRONTIERS IN PLANT SCIENCE 2022; 13:1010654. [PMID: 36388603 PMCID: PMC9664195 DOI: 10.3389/fpls.2022.1010654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 10/07/2022] [Indexed: 06/16/2023]
Abstract
Salt stress affects rice seed germination and seedling formation, seriously restricting rice production. Screening salt-tolerant rice varieties and analyzing the genetic mechanisms underlying salt tolerance are therefore very important to ensure rice production. In this study, 313 Oryza sativa ssp. japonica germplasm were used to conduct a genome-wide association study (GWAS) using 1% NaCl as a salt stress treatment during germination stage. The germination potential (GP) on different days and the germination index (GI) under salt stress were used as salt tolerance indicators. The results of population structure analysis showed that the 313 germplasm studied could be divided into two subpopulations, consistent with the geographical origins of the materials. There were 52 loci significantly related to salt tolerance during germination, and the phenotypic contribution rate of 29 loci was > 10%. A region on chromosome 11 (17049672-17249672 bp) was repeatedly located, and the candidate gene LOC_Os11g29490, which encodes a plasma membrane ATPase, was identified in this locus. Further haplotype analysis showed the GP of germplasm with different haplotypes at that locus significantly differed under salt stress (p < 0.05), and germplasm carrying Hap2 displayed strong salt tolerance during the germination stage. Two other promising candidate genes for salt tolerance were identified: LOC_Os01g27170 (OsHAK3), which encodes a potassium transporter, and LOC_Os10g42550 (OsITPK5), which encodes an inositol 1, 3, 4-trisphosphate 5/6-kinase. The results of this study provide a theoretical basis for salt-tolerant gene cloning and molecular design breeding in rice.
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Affiliation(s)
- Chunyan Ju
- Chongqing Engineering Research Center of Specialty Crop Resources, College of Life Sciences, Chongqing Normal University, Chongqing, China
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xiaoding Ma
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Bing Han
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Wei Zhang
- Institute of Coastal Agriculture, Hebei Academy of Agriculture and Forestry Sciences, Tangshan, China
- Tangshan Key Laboratory of Rice Breeding, Tangshan, China
| | - Zhengwu Zhao
- Chongqing Engineering Research Center of Specialty Crop Resources, College of Life Sciences, Chongqing Normal University, Chongqing, China
| | - Leiyue Geng
- Institute of Coastal Agriculture, Hebei Academy of Agriculture and Forestry Sciences, Tangshan, China
- Tangshan Key Laboratory of Rice Breeding, Tangshan, China
| | - Di Cui
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Longzhi Han
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
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15
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Kim KW, Nawade B, Nam J, Chu SH, Ha J, Park YJ. Development of an inclusive 580K SNP array and its application for genomic selection and genome-wide association studies in rice. FRONTIERS IN PLANT SCIENCE 2022; 13:1036177. [PMID: 36352876 PMCID: PMC9637963 DOI: 10.3389/fpls.2022.1036177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Accepted: 09/30/2022] [Indexed: 06/16/2023]
Abstract
Rice is a globally cultivated crop and is primarily a staple food source for more than half of the world's population. Various single-nucleotide polymorphism (SNP) arrays have been developed and utilized as standard genotyping methods for rice breeding research. Considering the importance of SNP arrays with more inclusive genetic information for GWAS and genomic selection, we integrated SNPs from eight different data resources: resequencing data from the Korean World Rice Collection (KRICE) of 475 accessions, 3,000 rice genome project (3 K-RGP) data, 700 K high-density rice array, Affymetrix 44 K SNP array, QTARO, Reactome, and plastid and GMO information. The collected SNPs were filtered and selected based on the breeder's interest, covering all key traits or research areas to develop an integrated array system representing inclusive genomic polymorphisms. A total of 581,006 high-quality SNPs were synthesized with an average distance of 200 bp between adjacent SNPs, generating a 580 K Axiom Rice Genotyping Chip (580 K _ KNU chip). Further validation of this array on 4,720 genotypes revealed robust and highly efficient genotyping. This has also been demonstrated in genome-wide association studies (GWAS) and genomic selection (GS) of three traits: clum length, heading date, and panicle length. Several SNPs significantly associated with cut-off, -log10 p-value >7.0, were detected in GWAS, and the GS predictabilities for the three traits were more than 0.5, in both rrBLUP and convolutional neural network (CNN) models. The Axiom 580 K Genotyping array will provide a cost-effective genotyping platform and accelerate rice GWAS and GS studies.
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Affiliation(s)
- Kyu-Won Kim
- Center for Crop Breeding on Omics and Artificial Intelligence, Kongju National University, Yesan, South Korea
| | - Bhagwat Nawade
- Center for Crop Breeding on Omics and Artificial Intelligence, Kongju National University, Yesan, South Korea
| | - Jungrye Nam
- Center for Crop Breeding on Omics and Artificial Intelligence, Kongju National University, Yesan, South Korea
| | - Sang-Ho Chu
- Center for Crop Breeding on Omics and Artificial Intelligence, Kongju National University, Yesan, South Korea
| | - Jungmin Ha
- Department of Plant Science, Gangneung-Wonju National University, Gangneung, South Korea
| | - Yong-Jin Park
- Center for Crop Breeding on Omics and Artificial Intelligence, Kongju National University, Yesan, South Korea
- Department of Plant Resources, College of Industrial Sciences, Kongju National University, Yesan, South Korea
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16
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Muthuramalingam P, Jeyasri R, Rakkammal K, Satish L, Shamili S, Karthikeyan A, Valliammai A, Priya A, Selvaraj A, Gowri P, Wu QS, Karutha Pandian S, Shin H, Chen JT, Baskar V, Thiruvengadam M, Akilan M, Ramesh M. Multi-Omics and Integrative Approach towards Understanding Salinity Tolerance in Rice: A Review. BIOLOGY 2022; 11:biology11071022. [PMID: 36101403 PMCID: PMC9312129 DOI: 10.3390/biology11071022] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 07/04/2022] [Accepted: 07/04/2022] [Indexed: 11/16/2022]
Abstract
Rice (Oryza sativa L.) plants are simultaneously encountered by environmental stressors, most importantly salinity stress. Salinity is the major hurdle that can negatively impact growth and crop yield. Understanding the salt stress and its associated complex trait mechanisms for enhancing salt tolerance in rice plants would ensure future food security. The main aim of this review is to provide insights and impacts of molecular-physiological responses, biochemical alterations, and plant hormonal signal transduction pathways in rice under saline stress. Furthermore, the review highlights the emerging breakthrough in multi-omics and computational biology in identifying the saline stress-responsive candidate genes and transcription factors (TFs). In addition, the review also summarizes the biotechnological tools, genetic engineering, breeding, and agricultural practicing factors that can be implemented to realize the bottlenecks and opportunities to enhance salt tolerance and develop salinity tolerant rice varieties. Future studies pinpointed the augmentation of powerful tools to dissect the salinity stress-related novel players, reveal in-depth mechanisms and ways to incorporate the available literature, and recent advancements to throw more light on salinity responsive transduction pathways in plants. Particularly, this review unravels the whole picture of salinity stress tolerance in rice by expanding knowledge that focuses on molecular aspects.
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Affiliation(s)
- Pandiyan Muthuramalingam
- Department of Biotechnology, Science Campus, Alagappa University, Karaikudi 630 003, India; (P.M.); (R.J.); (K.R.); (A.V.); (A.P.); (A.S.); (S.K.P.)
- Department of Horticultural Science, Gyeongsang National University, Jinju 52725, Korea
- Department of GreenBio Science, Gyeongsang National University, Jinju 52725, Korea
| | - Rajendran Jeyasri
- Department of Biotechnology, Science Campus, Alagappa University, Karaikudi 630 003, India; (P.M.); (R.J.); (K.R.); (A.V.); (A.P.); (A.S.); (S.K.P.)
| | - Kasinathan Rakkammal
- Department of Biotechnology, Science Campus, Alagappa University, Karaikudi 630 003, India; (P.M.); (R.J.); (K.R.); (A.V.); (A.P.); (A.S.); (S.K.P.)
| | - Lakkakula Satish
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel;
- The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel;
| | - Sasanala Shamili
- The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel;
| | - Adhimoolam Karthikeyan
- Subtropical Horticulture Research Institute, Jeju National University, Jeju 63243, Korea;
| | - Alaguvel Valliammai
- Department of Biotechnology, Science Campus, Alagappa University, Karaikudi 630 003, India; (P.M.); (R.J.); (K.R.); (A.V.); (A.P.); (A.S.); (S.K.P.)
| | - Arumugam Priya
- Department of Biotechnology, Science Campus, Alagappa University, Karaikudi 630 003, India; (P.M.); (R.J.); (K.R.); (A.V.); (A.P.); (A.S.); (S.K.P.)
| | - Anthonymuthu Selvaraj
- Department of Biotechnology, Science Campus, Alagappa University, Karaikudi 630 003, India; (P.M.); (R.J.); (K.R.); (A.V.); (A.P.); (A.S.); (S.K.P.)
| | - Pandiyan Gowri
- Department of Botany, Science Campus, Alagappa University, Karaikudi 630 003, India;
| | - Qiang-Sheng Wu
- College of Horticulture and Gardening, Yangtze University, Jingzhou 434025, China;
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, 50003 Hradec Kralove, Czech Republic
| | - Shunmugiah Karutha Pandian
- Department of Biotechnology, Science Campus, Alagappa University, Karaikudi 630 003, India; (P.M.); (R.J.); (K.R.); (A.V.); (A.P.); (A.S.); (S.K.P.)
| | - Hyunsuk Shin
- Department of Horticultural Science, Gyeongsang National University, Jinju 52725, Korea
- Department of GreenBio Science, Gyeongsang National University, Jinju 52725, Korea
- Correspondence: (H.S.); (M.T.); (M.R.)
| | - Jen-Tsung Chen
- Department of Life Sciences, National University of Kaohsiung, Kaohsiung 811, Taiwan;
| | - Venkidasamy Baskar
- Department of Oral and Maxillofaciel Surgery, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Chennai 602 105, India;
| | - Muthu Thiruvengadam
- Department of Crop Science, College of Sanghuh Life Science, Konkuk University, Seoul 05029, Korea
- Correspondence: (H.S.); (M.T.); (M.R.)
| | - Manoharan Akilan
- Department of Plant Breeding and Genetics, Anbil Dharmalingam Agricultural College and Research Institute, Tamil Nadu Agricultural University, Trichy 620 027, India;
| | - Manikandan Ramesh
- Department of Biotechnology, Science Campus, Alagappa University, Karaikudi 630 003, India; (P.M.); (R.J.); (K.R.); (A.V.); (A.P.); (A.S.); (S.K.P.)
- Correspondence: (H.S.); (M.T.); (M.R.)
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17
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Ravikiran KT, Gopala Krishnan S, Abhijith KP, Bollinedi H, Nagarajan M, Vinod KK, Bhowmick PK, Pal M, Ellur RK, Singh AK. Genome-Wide Association Mapping Reveals Novel Putative Gene Candidates Governing Reproductive Stage Heat Stress Tolerance in Rice. Front Genet 2022; 13:876522. [PMID: 35734422 PMCID: PMC9208292 DOI: 10.3389/fgene.2022.876522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 03/25/2022] [Indexed: 11/14/2022] Open
Abstract
Temperature rise predicted for the future will severely affect rice productivity because the crop is highly sensitive to heat stress at the reproductive stage. Breeding tolerant varieties is an economically viable option to combat heat stress, for which the knowledge of target genomic regions associated with the reproductive stage heat stress tolerance (RSHT) is essential. A set of 192 rice genotypes of diverse origins were evaluated under natural field conditions through staggered sowings for RSHT using two surrogate traits, spikelet fertility and grain yield, which showed significant reduction under heat stress. These genotypes were genotyped using a 50 k SNP array, and the association analysis identified 10 quantitative trait nucleotides (QTNs) for grain yield, of which one QTN (qHTGY8.1) was consistent across the different models used. Only two out of 10 MTAs coincided with the previously reported QTLs, making the remaing eight novel. A total of 22 QTNs were observed for spikelet fertility, among which qHTSF5.1 was consistently found across three models. Of the QTNs identified, seven coincided with previous reports, while the remaining QTNs were new. The genes near the QTNs were found associated with the protein–protein interaction, protein ubiquitination, stress signal transduction, and so forth, qualifying them to be putative for RSHT. An in silico expression analysis revealed the predominant expression of genes identified for spikelet fertility in reproductive organs. Further validation of the biological relevance of QTNs in conferring heat stress tolerance will enable their utilization in improving the reproductive stage heat stress tolerance in rice.
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Affiliation(s)
- K T Ravikiran
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - S Gopala Krishnan
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - K P Abhijith
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - H Bollinedi
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - M Nagarajan
- Rice Breeding and Genetics Research Centre, ICAR-IARI, Aduthurai, India
| | - K K Vinod
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - P K Bhowmick
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Madan Pal
- Division of Plant Physiology, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - R K Ellur
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - A K Singh
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, India
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18
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Thomson MJ, Biswas S, Tsakirpaloglou N, Septiningsih EM. Functional Allele Validation by Gene Editing to Leverage the Wealth of Genetic Resources for Crop Improvement. Int J Mol Sci 2022; 23:ijms23126565. [PMID: 35743007 PMCID: PMC9223900 DOI: 10.3390/ijms23126565] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/09/2022] [Accepted: 06/10/2022] [Indexed: 02/05/2023] Open
Abstract
Advances in molecular technologies over the past few decades, such as high-throughput DNA marker genotyping, have provided more powerful plant breeding approaches, including marker-assisted selection and genomic selection. At the same time, massive investments in plant genetics and genomics, led by whole genome sequencing, have led to greater knowledge of genes and genetic pathways across plant genomes. However, there remains a gap between approaches focused on forward genetics, which start with a phenotype to map a mutant locus or QTL with the goal of cloning the causal gene, and approaches using reverse genetics, which start with large-scale sequence data and work back to the gene function. The recent establishment of efficient CRISPR-Cas-based gene editing promises to bridge this gap and provide a rapid method to functionally validate genes and alleles identified through studies of natural variation. CRISPR-Cas techniques can be used to knock out single or multiple genes, precisely modify genes through base and prime editing, and replace alleles. Moreover, technologies such as protoplast isolation, in planta transformation, and the use of developmental regulatory genes promise to enable high-throughput gene editing to accelerate crop improvement.
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19
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Zhang Y, Wang Y, Sun X, Yuan J, Zhao Z, Gao J, Wen X, Tang F, Kang M, Abliz B, Zhang Z, Zhang H, Wang F, Li Z. Genome-Wide Identification of MDH Family Genes and Their Association with Salt Tolerance in Rice. PLANTS 2022; 11:plants11111498. [PMID: 35684271 PMCID: PMC9182821 DOI: 10.3390/plants11111498] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Accepted: 05/30/2022] [Indexed: 11/17/2022]
Abstract
Malate dehydrogenase (MDH) is widely present in nature and regulates plant growth and development, as well as playing essential roles, especially in abiotic stress responses. Nevertheless, there is no comprehensive knowledge to date on MDH family members in rice. In this study, a total of 12 MDH members in rice were identified through genome-wide analysis and divided into three groups on the basis of their phylogenetic relationship and protein-conserved motifs. Evolutionary analysis showed that MDH proteins from rice, maize and wheat shared a close phylogenetic relationship, and the MDH family was conserved in the long-term process of domestication. We identified two segmental duplication events involving four genes, which could be the major force driving the expansion of the OsMDH family. The expression profile, cis-regulatory elements and qRT-PCR results of these genes revealed that a few OsMDH showed high tissue specificity, almost all of which had stress response elements in the promoter region, and ten MDH members were significantly induced by salt stress. Through gene-based association analysis, we found a significant correlation between salt tolerance at the seedling stage and the genetic variation of OsMDH8.1 and OsMDH12.1. Additionally, we found that the polymorphism in the promoter region of OsMDH8.1 might be related to the salt tolerance of rice. This study aimed to provide valuable information on the functional study of the rice MDH gene family related to salt stress response and revealed that OsMDH8.1 might be an important gene for the cultivar improvement of salt tolerance in rice.
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Affiliation(s)
- Yanhong Zhang
- State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing 100193, China; (Y.Z.); (Y.W.); (X.S.); (J.G.); (Z.Z.); (H.Z.)
- Beijing Key Laboratory of Crop Genetic Improvement, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
- Xinjiang Key Laboratory of Crop Biotechnology, Institute of Nuclear Technology and Biotechnology, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China; (J.Y.); (Z.Z.); (B.A.)
- Key Laboratory of Saline-Alkali Soil Improvement and Utilization (Saline-Alkali Land in Arid and Semi-Arid Regions), Ministry of Agriculture and Rural Affairs, Urumqi 830091, China
| | - Yulong Wang
- State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing 100193, China; (Y.Z.); (Y.W.); (X.S.); (J.G.); (Z.Z.); (H.Z.)
- Beijing Key Laboratory of Crop Genetic Improvement, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Xingming Sun
- State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing 100193, China; (Y.Z.); (Y.W.); (X.S.); (J.G.); (Z.Z.); (H.Z.)
- Beijing Key Laboratory of Crop Genetic Improvement, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Jie Yuan
- Xinjiang Key Laboratory of Crop Biotechnology, Institute of Nuclear Technology and Biotechnology, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China; (J.Y.); (Z.Z.); (B.A.)
- Key Laboratory of Saline-Alkali Soil Improvement and Utilization (Saline-Alkali Land in Arid and Semi-Arid Regions), Ministry of Agriculture and Rural Affairs, Urumqi 830091, China
| | - Zhiqiang Zhao
- Xinjiang Key Laboratory of Crop Biotechnology, Institute of Nuclear Technology and Biotechnology, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China; (J.Y.); (Z.Z.); (B.A.)
- Key Laboratory of Saline-Alkali Soil Improvement and Utilization (Saline-Alkali Land in Arid and Semi-Arid Regions), Ministry of Agriculture and Rural Affairs, Urumqi 830091, China
| | - Jie Gao
- State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing 100193, China; (Y.Z.); (Y.W.); (X.S.); (J.G.); (Z.Z.); (H.Z.)
- Beijing Key Laboratory of Crop Genetic Improvement, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Xiaorong Wen
- Rice Experiment Station in Wensu, Xinjiang Academy of Agricultural Sciences, Wensu, Aksu 843100, China; (X.W.); (F.T.); (M.K.)
| | - Fusen Tang
- Rice Experiment Station in Wensu, Xinjiang Academy of Agricultural Sciences, Wensu, Aksu 843100, China; (X.W.); (F.T.); (M.K.)
| | - Mintai Kang
- Rice Experiment Station in Wensu, Xinjiang Academy of Agricultural Sciences, Wensu, Aksu 843100, China; (X.W.); (F.T.); (M.K.)
| | - Buhaliqem Abliz
- Xinjiang Key Laboratory of Crop Biotechnology, Institute of Nuclear Technology and Biotechnology, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China; (J.Y.); (Z.Z.); (B.A.)
| | - Zhanying Zhang
- State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing 100193, China; (Y.Z.); (Y.W.); (X.S.); (J.G.); (Z.Z.); (H.Z.)
- Beijing Key Laboratory of Crop Genetic Improvement, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Hongliang Zhang
- State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing 100193, China; (Y.Z.); (Y.W.); (X.S.); (J.G.); (Z.Z.); (H.Z.)
- Beijing Key Laboratory of Crop Genetic Improvement, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Fengbin Wang
- Key Laboratory of Saline-Alkali Soil Improvement and Utilization (Saline-Alkali Land in Arid and Semi-Arid Regions), Ministry of Agriculture and Rural Affairs, Urumqi 830091, China
- Rice Experiment Station in Wensu, Xinjiang Academy of Agricultural Sciences, Wensu, Aksu 843100, China; (X.W.); (F.T.); (M.K.)
- Institute of Grain Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China
- Correspondence: (F.W.); (Z.L.)
| | - Zichao Li
- State Key Laboratory of Agrobiotechnology, China Agricultural University, Beijing 100193, China; (Y.Z.); (Y.W.); (X.S.); (J.G.); (Z.Z.); (H.Z.)
- Beijing Key Laboratory of Crop Genetic Improvement, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
- Correspondence: (F.W.); (Z.L.)
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20
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The Rice Serine/Arginine Splicing Factor RS33 Regulates Pre-mRNA Splicing during Abiotic Stress Responses. Cells 2022; 11:cells11111796. [PMID: 35681491 PMCID: PMC9180459 DOI: 10.3390/cells11111796] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/27/2022] [Accepted: 05/07/2022] [Indexed: 02/06/2023] Open
Abstract
Abiotic stresses profoundly affect plant growth and development and limit crop productivity. Pre-mRNA splicing is a major form of gene regulation that helps plants cope with various stresses. Serine/arginine (SR)-rich splicing factors play a key role in pre-mRNA splicing to regulate different biological processes under stress conditions. Alternative splicing (AS) of SR transcripts and other transcripts of stress-responsive genes generates multiple splice isoforms that contribute to protein diversity, modulate gene expression, and affect plant stress tolerance. Here, we investigated the function of the plant-specific SR protein RS33 in regulating pre-mRNA splicing and abiotic stress responses in rice. The loss-of-function mutant rs33 showed increased sensitivity to salt and low-temperature stresses. Genome-wide analyses of gene expression and splicing in wild-type and rs33 seedlings subjected to these stresses identified multiple splice isoforms of stress-responsive genes whose AS are regulated by RS33. The number of RS33-regulated genes was much higher under low-temperature stress than under salt stress. Our results suggest that the plant-specific splicing factor RS33 plays a crucial role during plant responses to abiotic stresses.
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21
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Dai L, Li P, Li Q, Leng Y, Zeng D, Qian Q. Integrated Multi-Omics Perspective to Strengthen the Understanding of Salt Tolerance in Rice. Int J Mol Sci 2022; 23:ijms23095236. [PMID: 35563627 PMCID: PMC9105537 DOI: 10.3390/ijms23095236] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 05/03/2022] [Accepted: 05/04/2022] [Indexed: 11/29/2022] Open
Abstract
Salt stress is one of the major constraints to rice cultivation worldwide. Thus, the development of salt-tolerant rice cultivars becomes a hotspot of current rice breeding. Achieving this goal depends in part on understanding how rice responds to salt stress and uncovering the molecular mechanism underlying this trait. Over the past decade, great efforts have been made to understand the mechanism of salt tolerance in rice through genomics, transcriptomics, proteomics, metabolomics, and epigenetics. However, there are few reviews on this aspect. Therefore, we review the research progress of omics related to salt tolerance in rice and discuss how these advances will promote the innovations of salt-tolerant rice breeding. In the future, we expect that the integration of multi-omics salt tolerance data can accelerate the solution of the response mechanism of rice to salt stress, and lay a molecular foundation for precise breeding of salt tolerance.
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Affiliation(s)
- Liping Dai
- State Key Laboratory for Rice Biology, China National Rice Research Institute, Hangzhou 310006, China; (L.D.); (P.L.); (Q.L.); (D.Z.)
| | - Peiyuan Li
- State Key Laboratory for Rice Biology, China National Rice Research Institute, Hangzhou 310006, China; (L.D.); (P.L.); (Q.L.); (D.Z.)
| | - Qing Li
- State Key Laboratory for Rice Biology, China National Rice Research Institute, Hangzhou 310006, China; (L.D.); (P.L.); (Q.L.); (D.Z.)
| | - Yujia Leng
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, College of Agriculture, Yangzhou University, Yangzhou 225009, China
- Correspondence: (Y.L.); (Q.Q.)
| | - Dali Zeng
- State Key Laboratory for Rice Biology, China National Rice Research Institute, Hangzhou 310006, China; (L.D.); (P.L.); (Q.L.); (D.Z.)
- The Key Laboratory for Quality Improvement of Agricultural Products of Zhejiang Province, Zhejiang A & F University, Hangzhou 311300, China
| | - Qian Qian
- State Key Laboratory for Rice Biology, China National Rice Research Institute, Hangzhou 310006, China; (L.D.); (P.L.); (Q.L.); (D.Z.)
- Correspondence: (Y.L.); (Q.Q.)
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22
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Discovery of Genomic Regions and Candidate Genes Controlling Root Development Using a Recombinant Inbred Line Population in Rapeseed ( Brassica napus L.). Int J Mol Sci 2022; 23:ijms23094781. [PMID: 35563170 PMCID: PMC9102059 DOI: 10.3390/ijms23094781] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 04/23/2022] [Accepted: 04/25/2022] [Indexed: 11/16/2022] Open
Abstract
Marker-assisted selection enables breeders to quickly select excellent root architectural variations, which play an essential role in plant productivity. Here, ten root-related and shoot biomass traits of a new F6 recombinant inbred line (RIL) population were investigated under hydroponics and resulted in high heritabilities from 0.61 to 0.83. A high-density linkage map of the RIL population was constructed using a Brassica napus 50k Illumina single nucleotide polymorphism (SNP) array. A total of 86 quantitative trait loci (QTLs) explaining 4.16–14.1% of the phenotypic variances were detected and integrated into eight stable QTL clusters, which were repeatedly detected in different experiments. The codominant markers were developed to be tightly linked with three major QTL clusters, qcA09-2, qcC08-2, and qcC08-3, which controlled both root-related and shoot biomass traits and had phenotypic contributions greater than 10%. Among these, qcA09-2, renamed RT.A09, was further fine-mapped to a 129-kb interval with 19 annotated genes in the B. napus reference genome. By integrating the results of real-time PCR and comparative sequencing, five genes with expression differences and/or amino acid differences were identified as important candidate genes for RT.A09. Our findings laid the foundation for revealing the molecular mechanism of root development and developed valuable markers for root genetic improvement in rapeseed.
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23
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Wang X, Li J, Sun J, Gu S, Wang J, Su C, Li Y, Ma D, Zhao M, Chen W. Mining Beneficial Genes for Salt Tolerance From a Core Collection of Rice Landraces at the Seedling Stage Through Genome-Wide Association Mapping. FRONTIERS IN PLANT SCIENCE 2022; 13:847863. [PMID: 35557725 PMCID: PMC9087808 DOI: 10.3389/fpls.2022.847863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 04/08/2022] [Indexed: 06/15/2023]
Abstract
Rice is a salt-sensitive plant. High concentration of salt will hinder the absorption of water and nutrients and ultimately affect the yield. In this study, eight seedling-stage salt-related traits within a core collection of rice landraces were evaluated under salinity stress (100 mM NaCl) and normal conditions in a growth chamber. Genome-wide association study (GWAS) was performed with the genotypic data including 2,487,353 single-nucleotide polymorphisms (SNPs) detected in the core collection. A total of 65 QTLs significantly associated with salt tolerance (ST) were identified by GWAS. Among them, a co-localization QTL qTL4 associated with the SKC, RN/K, and SNC on chromosome 6, which explained 14.38-17.94% of phenotypic variation, was selected for further analysis. According to haplotype analysis, qRT-PCR analysis, and sequence alignment, it was finally determined that 4 candidate genes (LOC_Os06g47720, LOC_Os06g47820, LOC_Os06g47850, LOC_Os06g47970) were related to ST. The results provide useful candidate genes for marker assisted selection for ST in the rice molecular breeding programs.
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Affiliation(s)
- Xiaoliang Wang
- Rice Research Institute, Shenyang Agricultural University, Shenyang, China
| | - Jinquan Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, China
- Strube Research GmbH & Co. KG, Söllingen, Germany
| | - Jian Sun
- Rice Research Institute, Shenyang Agricultural University, Shenyang, China
| | - Shuang Gu
- Rice Research Institute, Shenyang Agricultural University, Shenyang, China
| | - Jingbo Wang
- Rice Research Institute, Shenyang Agricultural University, Shenyang, China
| | - Chang Su
- Rice Research Institute, Shenyang Agricultural University, Shenyang, China
| | - Yueting Li
- Rice Research Institute, Shenyang Agricultural University, Shenyang, China
| | - Dianrong Ma
- Rice Research Institute, Shenyang Agricultural University, Shenyang, China
| | - Minghui Zhao
- Rice Research Institute, Shenyang Agricultural University, Shenyang, China
| | - Wenfu Chen
- Rice Research Institute, Shenyang Agricultural University, Shenyang, China
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24
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Identification of accession-specific variants and development of KASP markers for assessing the genetic makeup of Brassica rapa seeds. BMC Genomics 2022; 23:326. [PMID: 35468724 PMCID: PMC9036802 DOI: 10.1186/s12864-022-08567-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Accepted: 04/19/2022] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Most crop seeds are F1 hybrids. Seed providers and plant breeders must be confident that the seed supplied to growers is of known, and uniform, genetic makeup. This requires maintenance of pure genotypes of the parental lines and testing to ensure the genetic purity of the F1 seed. Traditionally, seed purity has been assessed with a grow-out test (GOT) in the field, a time consuming and costly venture. Early in the last decade, seed testing with molecular markers was introduced as a replacement for GOT, and Kompetitive allele specific PCR (KASP) markers were recognized as promising tools for genetic testing of seeds. However, the markers available at that time could be inaccurate and applicable to only a small number of accessions or varieties due to the limited genetic information and reference genomes available. RESULTS We identified 4,925,742 SNPs in 50 accessions of the Brasscia rapa core collection. From these, we identified 2,925 SNPs as accession-specific, considering properties of flanking region harboring accession-specific SNPs and genic region conservation among accessions by the Next Generation Sequencing (NGS) analysis. In total, 100 accession-specific markers were developed as accession-specific KASP markers. Based on the results of our validation experiments, the accession-specific markers successfully distinguised individuals from the mixed population including 50 target accessions from B. rapa core collection and the outgroup. Additionally, the marker set we developed here discriminated F1 hybrids and their parental lines with distinct clusters. CONCLUSIONS This study provides efficient methods for developing KASP markers to distinguish individuals from the mixture comprised of breeding lines and germplasms from the resequencing data of Chinese cabbage (Brassica rapa spp. pekinensis).
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Li X, Guo D, Xue M, Li G, Yan Q, Jiang H, Liu H, Chen J, Gao Y, Duan L, Xie L. Genome-Wide Association Study of Salt Tolerance at the Seed Germination Stage in Flax (Linum usitatissimum L.). Genes (Basel) 2022; 13:genes13030486. [PMID: 35328040 PMCID: PMC8949523 DOI: 10.3390/genes13030486] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 03/03/2022] [Accepted: 03/05/2022] [Indexed: 02/04/2023] Open
Abstract
Soil salinization seriously affects the growth and distribution of flax. However, there is little information about the salt tolerance of flax. In this study, the salt tolerance of 200 diverse flax accessions during the germination stage was evaluated, and then the Genome-wide Association Study (GWAS) was carried out based on the relative germination rate (RGR), relative shoot length (RSL) and relative root length (RRL), whereby quantitative trait loci (QTLs) related to salt tolerance were identified. The results showed that oil flax had a better salt tolerance than fiber flax. A total of 902 single nucleotide polymorphisms (SNPs) were identified on 15 chromosomes. These SNPs were integrated into 64 QTLs, explaining 14.48 to 29.38% (R2) of the phenotypic variation. In addition, 268 candidate genes were screened by combining previous transcriptome data and homologous gene annotation. Among them, Lus10033213 is a single-point SNP repeat mapping gene, which encodes a Glutathione S-transferase (GST). This study is the first to use GWAS to excavate genes related to salt tolerance during the germination stage of flax. The results of this study provide important information for studying the genetic mechanism of salt tolerance of flax, and also provide the possibility to improve the salt tolerance of flax.
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Kumar P, Choudhary M, Halder T, Prakash NR, Singh V, V. VT, Sheoran S, T. RK, Longmei N, Rakshit S, Siddique KHM. Salinity stress tolerance and omics approaches: revisiting the progress and achievements in major cereal crops. Heredity (Edinb) 2022; 128:497-518. [DOI: 10.1038/s41437-022-00516-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 02/12/2022] [Accepted: 02/14/2022] [Indexed: 02/07/2023] Open
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Yuan L, Zhang L, Wei X, Wang R, Li N, Chen G, Fan F, Huang S, Li J, Li S. Quantitative Trait Locus Mapping of Salt Tolerance in Wild Rice Oryza longistaminata. Int J Mol Sci 2022; 23:ijms23042379. [PMID: 35216499 PMCID: PMC8878134 DOI: 10.3390/ijms23042379] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 02/17/2022] [Accepted: 02/18/2022] [Indexed: 11/16/2022] Open
Abstract
Salt stress is one of the most severe adverse environments in rice production; increasing salinization is seriously endangering rice production around the world. In this study, a rice backcross inbred line (BIL) population derived from the cross of 9311 and wild rice Oryza longistaminata was employed to identify the favorable genetic loci of O. longistaminata for salt tolerance. A total of 27 quantitative trait loci (QTLs) related to salt tolerance were identified in 140 rice BILs, and 17 QTLs formed seven QTL clusters on different chromosomes, of which 18 QTLs were derived from O. longistaminata, and a QTL for salt injury score (SIS), water content of seedlings (WCS) under salt treatment, and relative water content of seedlings (RWCS) was repeatedly detected and colocalized at the same site on chromosome 2, and a cytochrome P450 86B1 (MH02t0466900) was suggested as the potential candidate gene responsible for the salt tolerance based on sequence and expression analysis. These findings laid the foundation for further improving rice salt tolerance through molecular breeding in the future.
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Affiliation(s)
- Lei Yuan
- State Key Laboratory of Hybrid Rice, Hongshan Laboratory of Hubei Province, Key Laboratory for Research and Utilization of Heterosis in Indica Rice of Ministry of Agriculture, Engineering Research Center for Plant Biotechnology and Germplasm Utilization of Ministry of Education, College of Life Science, Wuhan University, Wuhan 430072, China; (L.Y.); (L.Z.); (X.W.); (R.W.); (N.L.); (G.C.); (F.F.); (S.H.)
- Hubei Provincial Key Laboratory for Protection and Application of Special Plants in Wuling Area of China, College of Life Sciences, South-Central University for Nationalities, Wuhan 430074, China
| | - Licheng Zhang
- State Key Laboratory of Hybrid Rice, Hongshan Laboratory of Hubei Province, Key Laboratory for Research and Utilization of Heterosis in Indica Rice of Ministry of Agriculture, Engineering Research Center for Plant Biotechnology and Germplasm Utilization of Ministry of Education, College of Life Science, Wuhan University, Wuhan 430072, China; (L.Y.); (L.Z.); (X.W.); (R.W.); (N.L.); (G.C.); (F.F.); (S.H.)
| | - Xiao Wei
- State Key Laboratory of Hybrid Rice, Hongshan Laboratory of Hubei Province, Key Laboratory for Research and Utilization of Heterosis in Indica Rice of Ministry of Agriculture, Engineering Research Center for Plant Biotechnology and Germplasm Utilization of Ministry of Education, College of Life Science, Wuhan University, Wuhan 430072, China; (L.Y.); (L.Z.); (X.W.); (R.W.); (N.L.); (G.C.); (F.F.); (S.H.)
| | - Ruihua Wang
- State Key Laboratory of Hybrid Rice, Hongshan Laboratory of Hubei Province, Key Laboratory for Research and Utilization of Heterosis in Indica Rice of Ministry of Agriculture, Engineering Research Center for Plant Biotechnology and Germplasm Utilization of Ministry of Education, College of Life Science, Wuhan University, Wuhan 430072, China; (L.Y.); (L.Z.); (X.W.); (R.W.); (N.L.); (G.C.); (F.F.); (S.H.)
| | - Nannan Li
- State Key Laboratory of Hybrid Rice, Hongshan Laboratory of Hubei Province, Key Laboratory for Research and Utilization of Heterosis in Indica Rice of Ministry of Agriculture, Engineering Research Center for Plant Biotechnology and Germplasm Utilization of Ministry of Education, College of Life Science, Wuhan University, Wuhan 430072, China; (L.Y.); (L.Z.); (X.W.); (R.W.); (N.L.); (G.C.); (F.F.); (S.H.)
| | - Gaili Chen
- State Key Laboratory of Hybrid Rice, Hongshan Laboratory of Hubei Province, Key Laboratory for Research and Utilization of Heterosis in Indica Rice of Ministry of Agriculture, Engineering Research Center for Plant Biotechnology and Germplasm Utilization of Ministry of Education, College of Life Science, Wuhan University, Wuhan 430072, China; (L.Y.); (L.Z.); (X.W.); (R.W.); (N.L.); (G.C.); (F.F.); (S.H.)
| | - Fengfeng Fan
- State Key Laboratory of Hybrid Rice, Hongshan Laboratory of Hubei Province, Key Laboratory for Research and Utilization of Heterosis in Indica Rice of Ministry of Agriculture, Engineering Research Center for Plant Biotechnology and Germplasm Utilization of Ministry of Education, College of Life Science, Wuhan University, Wuhan 430072, China; (L.Y.); (L.Z.); (X.W.); (R.W.); (N.L.); (G.C.); (F.F.); (S.H.)
| | - Shaoying Huang
- State Key Laboratory of Hybrid Rice, Hongshan Laboratory of Hubei Province, Key Laboratory for Research and Utilization of Heterosis in Indica Rice of Ministry of Agriculture, Engineering Research Center for Plant Biotechnology and Germplasm Utilization of Ministry of Education, College of Life Science, Wuhan University, Wuhan 430072, China; (L.Y.); (L.Z.); (X.W.); (R.W.); (N.L.); (G.C.); (F.F.); (S.H.)
| | - Jianxiong Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresour, College of Agriculture, Guangxi University, Nanning 530004, China;
| | - Shaoqing Li
- State Key Laboratory of Hybrid Rice, Hongshan Laboratory of Hubei Province, Key Laboratory for Research and Utilization of Heterosis in Indica Rice of Ministry of Agriculture, Engineering Research Center for Plant Biotechnology and Germplasm Utilization of Ministry of Education, College of Life Science, Wuhan University, Wuhan 430072, China; (L.Y.); (L.Z.); (X.W.); (R.W.); (N.L.); (G.C.); (F.F.); (S.H.)
- Correspondence:
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Identification of a Negative Regulator for Salt Tolerance at Seedling Stage via a Genome-wide Association Study of Thai Rice Populations. Int J Mol Sci 2022; 23:ijms23031842. [PMID: 35163767 PMCID: PMC8836775 DOI: 10.3390/ijms23031842] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 02/02/2022] [Accepted: 02/03/2022] [Indexed: 02/01/2023] Open
Abstract
Salt stress is a major limiting factor in crop production and yield in many regions of the world. The objective of this study was to identify the genes responsible for salt tolerance in Thai rice populations. We performed a genome-wide association study with growth traits, relative water content, and cell membrane stability at the seedling stage, and predicted 25 putative genes. Eleven of them were located within previously reported salt-tolerant QTLs (ST-QTLs). OsCRN, located outside the ST-QTLs, was selected for gene characterization using the Arabidopsis mutant line with T-DNA insertion in the orthologous gene. Mutations in the AtCRN gene led to the enhancement of salt tolerance by increasing the ability to maintain photosynthetic pigment content and relative water content, while the complemented lines with ectopic expression of OsCRN showed more susceptibility to salt stress detected by photosynthesis performance. Moreover, the salt-tolerant rice varieties showed lower expression of this gene than the susceptible rice varieties under salt stress conditions. The study concludes that by acting as a negative regulator, OsCRN plays an important role in salt tolerance in rice.
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Li Z, Geng W, Tan M, Ling Y, Zhang Y, Zhang L, Peng Y. Differential Responses to Salt Stress in Four White Clover Genotypes Associated With Root Growth, Endogenous Polyamines Metabolism, and Sodium/Potassium Accumulation and Transport. FRONTIERS IN PLANT SCIENCE 2022; 13:896436. [PMID: 35720567 PMCID: PMC9201400 DOI: 10.3389/fpls.2022.896436] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 05/09/2022] [Indexed: 05/04/2023]
Abstract
Selection and utilization of salt-tolerant crops are essential strategies for mitigating salinity damage to crop productivity with increasing soil salinization worldwide. This study was conducted to identify salt-tolerant white clover (Trifolium repens) genotypes among 37 materials based on a comprehensive evaluation of five physiological parameters, namely, chlorophyll (Chl) content, photochemical efficiency of PS II (Fv/Fm), performance index on an absorption basis (PIABS), and leaf relative water content (RWC), and to further analyze the potential mechanism of salt tolerance associated with changes in growth, photosynthetic performance, endogenous polyamine metabolism, and Na+/K+ uptake and transport. The results showed that significant variations in salt tolerance were identified among 37 genotypes, as PI237292 and Tr005 were the top two genotypes with the highest salt tolerance, and PI251432 and Korla were the most salt-sensitive genotypes compared to other materials. The salt-tolerant PI237292 and Tr005 not only maintained significantly lower EL but also showed significantly better photosynthetic performance, higher leaf RWC, underground dry weight, and the root to shoot ratio than the salt-sensitive PI251432 and Korla under salt stress. Increases in endogenous PAs, putrescine (Put), and spermidine (Spd) contents could be key adaptive responses to salt stress in the PI237292 and the Tr005 through upregulating genes encoding Put and Spd biosynthesis (NCA, ADC, SAMDC, and SPDS2). For Na+ and K+ accumulation and transport, higher salt tolerance of the PI237292 could be associated with the maintenance of Na+ and Ca+ homeostasis associated with upregulations of NCLX and BTB/POZ. The K+ homeostasis-related genes (KEA2, HAK25, SKOR, POT2/8/11, TPK3/5, and AKT1/5) are differentially expressed among four genotypes under salt stress. However, the K+ level and K+/Na+ ratio were not completely consistent with the salt tolerance of the four genotypes. The regulatory function of these differentially expressed genes (DEGs) on salt tolerance in the white clover and other leguminous plants needs to be investigated further. The current findings also provide basic genotypes for molecular-based breeding for salt tolerance in white clover species.
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Affiliation(s)
- Zhou Li
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Wan Geng
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Meng Tan
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Yao Ling
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Yan Zhang
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Liquan Zhang
- Key Laboratory of Forage and Endemic Crop Biology, Ministry of Education, Inner Mongolia University, Hohhot, China
- *Correspondence: Liquan Zhang,
| | - Yan Peng
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China
- Yan Peng,
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Fan X, Jiang H, Meng L, Chen J. Gene Mapping, Cloning and Association Analysis for Salt Tolerance in Rice. Int J Mol Sci 2021; 22:11674. [PMID: 34769104 PMCID: PMC8583862 DOI: 10.3390/ijms222111674] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 10/26/2021] [Accepted: 10/27/2021] [Indexed: 11/16/2022] Open
Abstract
Soil salinization caused by the accumulation of sodium can decrease rice yield and quality. Identification of rice salt tolerance genes and their molecular mechanisms could help breeders genetically improve salt tolerance. We studied QTL mapping of populations for rice salt tolerance, period and method of salt tolerance identification, salt tolerance evaluation parameters, identification of salt tolerance QTLs, and fine-mapping and map cloning of salt tolerance QTLs. We discuss our findings as they relate to other genetic studies of salt tolerance association.
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Affiliation(s)
- Xiaoru Fan
- School of Chemistry and Life Science, Anshan Normal University, Anshan 114007, China;
| | - Hongzhen Jiang
- School of Agriculture, Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China;
| | - Lijun Meng
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
- Kunpeng Institute of Modern Agriculture at Foshan, Foshan 528200, China
| | - Jingguang Chen
- School of Agriculture, Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China;
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Kaur B, Sandhu KS, Kamal R, Kaur K, Singh J, Röder MS, Muqaddasi QH. Omics for the Improvement of Abiotic, Biotic, and Agronomic Traits in Major Cereal Crops: Applications, Challenges, and Prospects. PLANTS 2021; 10:plants10101989. [PMID: 34685799 PMCID: PMC8541486 DOI: 10.3390/plants10101989] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 09/17/2021] [Accepted: 09/18/2021] [Indexed: 12/22/2022]
Abstract
Omics technologies, namely genomics, transcriptomics, proteomics, metabolomics, and phenomics, are becoming an integral part of virtually every commercial cereal crop breeding program, as they provide substantial dividends per unit time in both pre-breeding and breeding phases. Continuous advances in omics assure time efficiency and cost benefits to improve cereal crops. This review provides a comprehensive overview of the established omics methods in five major cereals, namely rice, sorghum, maize, barley, and bread wheat. We cover the evolution of technologies in each omics section independently and concentrate on their use to improve economically important agronomic as well as biotic and abiotic stress-related traits. Advancements in the (1) identification, mapping, and sequencing of molecular/structural variants; (2) high-density transcriptomics data to study gene expression patterns; (3) global and targeted proteome profiling to study protein structure and interaction; (4) metabolomic profiling to quantify organ-level, small-density metabolites, and their composition; and (5) high-resolution, high-throughput, image-based phenomics approaches are surveyed in this review.
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Affiliation(s)
- Balwinder Kaur
- Everglades Research and Education Center, University of Florida, 3200 E. Palm Beach Rd., Belle Glade, FL 33430, USA;
| | - Karansher S. Sandhu
- Department of Crop and Soil Sciences, Washington State University, Pullman, WA 99163, USA;
| | - Roop Kamal
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Corrensstraße 3, 06466 Stadt Seeland, Germany; (R.K.); or (M.S.R.)
| | - Kawalpreet Kaur
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB T6G 2P5, Canada;
| | - Jagmohan Singh
- Division of Plant Pathology, ICAR-Indian Agricultural Research Institute, New Delhi 110012, India;
| | - Marion S. Röder
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Corrensstraße 3, 06466 Stadt Seeland, Germany; (R.K.); or (M.S.R.)
| | - Quddoos H. Muqaddasi
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Corrensstraße 3, 06466 Stadt Seeland, Germany; (R.K.); or (M.S.R.)
- Correspondence: or
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Haplotype Analysis of BADH1 by Next-Generation Sequencing Reveals Association with Salt Tolerance in Rice during Domestication. Int J Mol Sci 2021; 22:ijms22147578. [PMID: 34299195 PMCID: PMC8305476 DOI: 10.3390/ijms22147578] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 06/29/2021] [Accepted: 07/08/2021] [Indexed: 01/25/2023] Open
Abstract
Betaine aldehyde dehydrogenase 1 (BADH1), a paralog of the fragrance gene BADH2, is known to be associated with salt stress through the accumulation of synthesized glycine betaine (GB), which is involved in the response to abiotic stresses. Despite the unclear association between BADH1 and salt stress, we observed the responses of eight phenotypic characteristics (germination percentage (GP), germination energy (GE), germination index (GI), mean germination time (MGT), germination rate (GR), shoot length (SL), root length (RL), and total dry weight (TDW)) to salt stress during the germination stage of 475 rice accessions to investigate their association with BADH1 haplotypes. We found a total of 116 SNPs and 77 InDels in the whole BADH1 gene region, representing 39 haplotypes. Twenty-nine haplotypes representing 27 mutated alleles (two InDels and 25 SNPs) were highly (p < 0.05) associated with salt stress, including the five SNPs that have been previously reported to be associated with salt tolerance. We observed three predominant haplotypes associated with salt tolerance, Hap_2, Hap_18, and Hap_23, which were Indica specific, indicating a comparatively high number of rice accessions among the associated haplotypes. Eight plant parameters (phenotypes) also showed clear responses to salt stress, and except for MGT (mean germination time), all were positively correlated with each other. Different signatures of domestication for BADH1 were detected in cultivated rice by identifying the highest and lowest Tajima’s D values of two major cultivated ecotypes (Temperate Japonica and Indica). Our findings on these significant associations and BADH1 evolution to plant traits can be useful for future research development related to its gene expression.
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Le TD, Gathignol F, Vu HT, Nguyen KL, Tran LH, Vu HTT, Dinh TX, Lazennec F, Pham XH, Véry AA, Gantet P, Hoang GT. Genome-Wide Association Mapping of Salinity Tolerance at the Seedling Stage in a Panel of Vietnamese Landraces Reveals New Valuable QTLs for Salinity Stress Tolerance Breeding in Rice. PLANTS 2021; 10:plants10061088. [PMID: 34071570 PMCID: PMC8228224 DOI: 10.3390/plants10061088] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 05/18/2021] [Accepted: 05/25/2021] [Indexed: 01/18/2023]
Abstract
Rice tolerance to salinity stress involves diverse and complementary mechanisms, such as the regulation of genome expression, activation of specific ion-transport systems to manage excess sodium at the cell or plant level, and anatomical changes that avoid sodium penetration into the inner tissues of the plant. These complementary mechanisms can act synergistically to improve salinity tolerance in the plant, which is then interesting in breeding programs to pyramidize complementary QTLs (quantitative trait loci), to improve salinity stress tolerance of the plant at different developmental stages and in different environments. This approach presupposes the identification of salinity tolerance QTLs associated with different mechanisms involved in salinity tolerance, which requires the greatest possible genetic diversity to be explored. To contribute to this goal, we screened an original panel of 179 Vietnamese rice landraces genotyped with 21,623 SNP markers for salinity stress tolerance under 100 mM NaCl treatment, at the seedling stage, with the aim of identifying new QTLs involved in the salinity stress tolerance via a genome-wide association study (GWAS). Nine salinity tolerance-related traits, including the salt injury score, chlorophyll and water content, and K+ and Na+ contents were measured in leaves. GWAS analysis allowed the identification of 26 QTLs. Interestingly, ten of them were associated with several different traits, which indicates that these QTLs act pleiotropically to control the different levels of plant responses to salinity stress. Twenty-one identified QTLs colocalized with known QTLs. Several genes within these QTLs have functions related to salinity stress tolerance and are mainly involved in gene regulation, signal transduction or hormone signaling. Our study provides promising QTLs for breeding programs to enhance salinity tolerance and identifies candidate genes that should be further functionally studied to better understand salinity tolerance mechanisms in rice.
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Affiliation(s)
- Thao Duc Le
- National Key Laboratory for Plant Cell Biotechnology, Agricultural Genetics Institute, LMI RICE-2, Hanoi 00000, Vietnam; (T.D.L.); (H.T.V.); (L.H.T.); (X.H.P.)
| | - Floran Gathignol
- UMR DIADE, Université de Montpellier, IRD, 34095 Montpellier, France; (F.G.); (F.L.)
| | - Huong Thi Vu
- National Key Laboratory for Plant Cell Biotechnology, Agricultural Genetics Institute, LMI RICE-2, Hanoi 00000, Vietnam; (T.D.L.); (H.T.V.); (L.H.T.); (X.H.P.)
| | - Khanh Le Nguyen
- Faculty of Agricultural Technology, University of Engineering and Technology, Hanoi 00000, Vietnam;
| | - Linh Hien Tran
- National Key Laboratory for Plant Cell Biotechnology, Agricultural Genetics Institute, LMI RICE-2, Hanoi 00000, Vietnam; (T.D.L.); (H.T.V.); (L.H.T.); (X.H.P.)
| | - Hien Thi Thu Vu
- Department of Genetics and Plant Breeding, Faculty of Agronomy, Vietnam National University of Agriculture, Hanoi 00000, Vietnam;
| | - Tu Xuan Dinh
- Incubation and Support Center for Technology and Science Enterprises, Hanoi 00000, Vietnam;
| | - Françoise Lazennec
- UMR DIADE, Université de Montpellier, IRD, 34095 Montpellier, France; (F.G.); (F.L.)
| | - Xuan Hoi Pham
- National Key Laboratory for Plant Cell Biotechnology, Agricultural Genetics Institute, LMI RICE-2, Hanoi 00000, Vietnam; (T.D.L.); (H.T.V.); (L.H.T.); (X.H.P.)
| | - Anne-Aliénor Véry
- UMR BPMP, Univ Montpellier, CNRS, INRAE, Institut Agro, 34060 Montpellier, France;
| | - Pascal Gantet
- UMR DIADE, Université de Montpellier, IRD, 34095 Montpellier, France; (F.G.); (F.L.)
- Department of Molecular Biology, Centre of the Region Haná for Biotechnological and Agricultural Research, Palacký University Olomouc, Šlechtitelů 27, 783 71 Olomouc, Czech Republic
- Correspondence: (P.G.); (G.T.H.); Tel.: +33-467-416-414 (P.G.); +84-397-600-496 (G.T.H.)
| | - Giang Thi Hoang
- National Key Laboratory for Plant Cell Biotechnology, Agricultural Genetics Institute, LMI RICE-2, Hanoi 00000, Vietnam; (T.D.L.); (H.T.V.); (L.H.T.); (X.H.P.)
- Correspondence: (P.G.); (G.T.H.); Tel.: +33-467-416-414 (P.G.); +84-397-600-496 (G.T.H.)
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Ganie SA, Wani SH, Henry R, Hensel G. Improving rice salt tolerance by precision breeding in a new era. CURRENT OPINION IN PLANT BIOLOGY 2021; 60:101996. [PMID: 33444976 DOI: 10.1016/j.pbi.2020.101996] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 12/16/2020] [Accepted: 12/19/2020] [Indexed: 05/03/2023]
Abstract
Rice is a premier staple food that constitutes the bulk of the daily diet of the majority of people in Asia. Agricultural productivity must be boosted to support this huge demand for rice. However, production is jeopardized by soil salinity. Advances in whole-genome sequencing, marker-assisted breeding strategies, and targeted mutagenesis have substantially improved the toolbox of today's breeders. Given that salinity has a major influence on rice at both the seedling and reproductive stages, understanding and manipulating this trait will have an enormous impact on sustainable production. This article summarizes recent developments in the understanding of the mechanisms of salt tolerance and how state-of-the-art tools such as RNA guided CRISPR endonuclease technology including targeted mutagenesis or base and prime editing can help in gene discovery and functional analysis as well as in transferring favorable alleles into elite breeding material to speed the breeding of salt-tolerant rice cultivars.
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Affiliation(s)
- Showkat Ahmad Ganie
- Department of Biotechnology, Visva-Bharati, Santiniketan 731235, West Bengal, India.
| | - Shabir Hussain Wani
- Mountain Research Centre for Field Crops, Khudwani - 192101, Sher-e-Kashmir University of Agricultural Sciences and Technology, Kashmir, J&K, India
| | - Robert Henry
- Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Goetz Hensel
- Centre for Plant Genome Engineering, Institute of Plant Biochemistry, Heinrich-Heine-University, Universitätsstraße 1, 40225 Düsseldorf, Germany; Department of Physiology and Cell Biology, Leibniz Institute of Plant Genetics and Crop Plant Research, Corrensstraße 3, OT Gatersleben, 06466 Seeland, Germany; Division of Molecular Biology, Centre of Region Haná for Biotechnological and Agriculture Research, Czech Advanced Technology and Research Institute, Palacký University, Olomouc, Czech Republic.
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35
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Application of Genomics to Understand Salt Tolerance in Lentil. Genes (Basel) 2021; 12:genes12030332. [PMID: 33668850 PMCID: PMC7996261 DOI: 10.3390/genes12030332] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 02/19/2021] [Accepted: 02/22/2021] [Indexed: 02/07/2023] Open
Abstract
Soil salinity is a major abiotic stress, limiting lentil productivity worldwide. Understanding the genetic basis of salt tolerance is vital to develop tolerant varieties. A diversity panel consisting of 276 lentil accessions was screened in a previous study through traditional and image-based approaches to quantify growth under salt stress. Genotyping was performed using two contrasting methods, targeted (tGBS) and transcriptome (GBS-t) genotyping-by-sequencing, to evaluate the most appropriate methodology. tGBS revealed the highest number of single-base variants (SNPs) (c. 56,349), and markers were more evenly distributed across the genome compared to GBS-t. A genome-wide association study (GWAS) was conducted using a mixed linear model. Significant marker-trait associations were observed on Chromosome 2 as well as Chromosome 4, and a range of candidate genes was identified from the reference genome, the most plausible being potassium transporters, which are known to be involved in salt tolerance in related species. Detailed mineral composition performed on salt-treated and control plant tissues revealed the salt tolerance mechanism in lentil, in which tolerant accessions do not transport Na+ ions around the plant instead localize within the root tissues. The pedigree analysis identified two parental accessions that could have been the key sources of tolerance in this dataset.
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36
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Zhang H, San ML, Jang SG, Lee JH, Kim NE, Lee AR, Park SY, Cao FY, Chin JH, Kwon SW. Genome-Wide Association Study of Root System Development at Seedling Stage in Rice. Genes (Basel) 2020; 11:genes11121395. [PMID: 33255557 PMCID: PMC7760126 DOI: 10.3390/genes11121395] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 11/20/2020] [Accepted: 11/23/2020] [Indexed: 12/17/2022] Open
Abstract
Root network structure plays a crucial role in growth and development processes in rice. Longer, more branched root structures help plants to assimilate water and nutrition from soil, support robust plant growth, and improve resilience to stresses such as disease. Understanding the molecular basis of root development through screening of root-related traits in rice germplasms is critical to future rice breeding programs. This study used a small germplasm collection of 137 rice varieties chosen from the Korean rice core set (KRICE_CORE) to identify loci linked to root development. Two million high-quality single nucleotide polymorphisms (SNPs) were used as the genotype, with maximum root length (MRL) and total root weight (TRW) in seedlings used as the phenotype. Genome-wide association study (GWAS) combined with Principal Components Analysis (PCA) and Kinship matrix analysis identified four quantitative trait loci (QTLs) on chromosomes 3, 6, and 8. Two QTLs were linked to MRL and two were related to TRW. Analysis of Linkage Disequilibrium (LD) decay identified a 230 kb exploratory range for detection of candidate root-related genes. Candidates were filtered using RNA-seq data, gene annotations, and quantitative real-time PCR (qRT-PCR), and five previously characterized genes related to root development were identified, as well as four novel candidate genes. Promoter analysis of candidate genes showed that LOC_Os03g08880 and LOC_Os06g13060 contained SNPs with the potential to impact gene expression in root-related promoter motifs. Haplotype analysis of candidate genes revealed diverse haplotypes that were significantly associated with phenotypic variation. Taken together, these results indicate that LOC_Os03g08880 and LOC_Os06g13060 are strong candidate genes for root development functions. The significant haplotypes identified in this study will be beneficial in future breeding programs for root improvement.
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Affiliation(s)
- Hongjia Zhang
- Department of Plant Bioscience, College of Natural Resources and Life Science, Pusan National University, Miryang 50463, Korea; (H.Z.); (M.L.S.); (S.-G.J.); (J.-H.L.); (N.-E.K.); (A.-R.L.)
| | - Mar Lar San
- Department of Plant Bioscience, College of Natural Resources and Life Science, Pusan National University, Miryang 50463, Korea; (H.Z.); (M.L.S.); (S.-G.J.); (J.-H.L.); (N.-E.K.); (A.-R.L.)
| | - Seong-Gyu Jang
- Department of Plant Bioscience, College of Natural Resources and Life Science, Pusan National University, Miryang 50463, Korea; (H.Z.); (M.L.S.); (S.-G.J.); (J.-H.L.); (N.-E.K.); (A.-R.L.)
| | - Ja-Hong Lee
- Department of Plant Bioscience, College of Natural Resources and Life Science, Pusan National University, Miryang 50463, Korea; (H.Z.); (M.L.S.); (S.-G.J.); (J.-H.L.); (N.-E.K.); (A.-R.L.)
| | - Na-Eun Kim
- Department of Plant Bioscience, College of Natural Resources and Life Science, Pusan National University, Miryang 50463, Korea; (H.Z.); (M.L.S.); (S.-G.J.); (J.-H.L.); (N.-E.K.); (A.-R.L.)
| | - Ah-Rim Lee
- Department of Plant Bioscience, College of Natural Resources and Life Science, Pusan National University, Miryang 50463, Korea; (H.Z.); (M.L.S.); (S.-G.J.); (J.-H.L.); (N.-E.K.); (A.-R.L.)
| | - So-Yeon Park
- National Institute of Crop Science, Rural Development Administration, Miryang 50463, Korea;
| | - Fang-Yuan Cao
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture, School of Biology and Technology, Jiangsu University of Science and Technology, Zhenjiang 212008, China;
| | - Joong-Hyoun Chin
- Department of Integrative Biological Sciences and Industry, Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul 05006, Korea
- Correspondence: (J.-H.C.); (S.-W.K.); Tel.: +82-55-350-5506 (S.-W.K.)
| | - Soon-Wook Kwon
- Department of Plant Bioscience, College of Natural Resources and Life Science, Pusan National University, Miryang 50463, Korea; (H.Z.); (M.L.S.); (S.-G.J.); (J.-H.L.); (N.-E.K.); (A.-R.L.)
- Correspondence: (J.-H.C.); (S.-W.K.); Tel.: +82-55-350-5506 (S.-W.K.)
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Advances and Challenges in the Breeding of Salt-Tolerant Rice. Int J Mol Sci 2020; 21:ijms21218385. [PMID: 33182265 PMCID: PMC7664944 DOI: 10.3390/ijms21218385] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 11/06/2020] [Accepted: 11/07/2020] [Indexed: 12/16/2022] Open
Abstract
Soil salinization and a degraded ecological environment are challenging agricultural productivity and food security. Rice (Oryza sativa), the staple food of much of the world’s population, is categorized as a salt-susceptible crop. Improving the salt tolerance of rice would increase the potential of saline-alkali land and ensure food security. Salt tolerance is a complex quantitative trait. Biotechnological efforts to improve the salt tolerance of rice hinge on a detailed understanding of the molecular mechanisms underlying salt stress tolerance. In this review, we summarize progress in the breeding of salt-tolerant rice and in the mapping and cloning of genes and quantitative trait loci (QTLs) associated with salt tolerance in rice. Furthermore, we describe biotechnological tools that can be used to cultivate salt-tolerant rice, providing a reference for efforts aimed at rapidly and precisely cultivating salt-tolerance rice varieties.
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