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Ji G, Long Y, Cai G, Wang A, Yan G, Li H, Gao G, Xu K, Huang Q, Chen B, Li L, Li F, Nishio T, Shen J, Wu X. The chromosome-scale genome of wild Brassica oleracea provides insights into the domestication of Brassica plants. J Exp Bot 2024:erae079. [PMID: 38421062 DOI: 10.1093/jxb/erae079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Indexed: 03/02/2024]
Abstract
The cultivated diploid Brassica oleracea is an important vegetable crop, but the genetic basis of domestication remains largely unclear without high-quality reference genomes of wild B. oleracea. Here, we report the first chromosome-level assembly of the wild Brassica oleracea L. W03 genome, (total genome size, 630.7 Mb; scaffold N50, 64.6 Mb). Using newly assembled W03 genome, we constructed a gene-based B. oleracea pangenome and identified 29,744 core genes, 23,306 dispensable genes, and 1,896 private genes. We resequenced 53 accessions, which represent six potential wild B. oleracea progenitor species. The results of the population genomic analysis showed that wild B. oleracea population had the highest level of diversity and represented the more closely related population of horticultural B. oleracea. Additionally, the WUSCHEL gene was found to play a decisive role in domestication and to be involved in cauliflower and broccoli curd formation. We also illustrate the loss of disease resistance genes during domestication selection. Our results provide deep insights into B. oleracea domestication and will facilitate Brassica crop genetic improvement.
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Affiliation(s)
- Gaoxiang Ji
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, China
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, China
| | - Ying Long
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, China
| | - Guangqin Cai
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, China
| | - Aihua Wang
- Wuhan Vegetable Research Institute, Wuhan Academy of Agricultural Sciences, Wuhan, Hubei, China
| | - Guixin Yan
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, China
| | - Hao Li
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, China
| | - Guizhen Gao
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, China
| | - Kun Xu
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, China
| | - Qian Huang
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, China
| | - Biyun Chen
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, China
| | - Lixia Li
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, China
| | - Feng Li
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, China
| | - Takeshi Nishio
- Graduate School of Agricultural Science, Tohoku University, 468-1, Aza-Aoba, Aramaki, Aoba-ku, Sendai, 980-0845, Japan
| | - Jinxiong Shen
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, China
| | - Xiaoming Wu
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, China
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Inui S, Tomita N, Takaoka T, Ueda Y, Ohira S, Tsuchiya T, Miyazaki M, Nishio T, Koizumi M, Konishi K. Dosimetric Comparison of Automated Non-Coplanar Volumetric-Modulated Arc Therapy and Intensity-Modulated Proton Therapy in Angiosarcoma of the Scalp. Int J Radiat Oncol Biol Phys 2023; 117:e675. [PMID: 37785989 DOI: 10.1016/j.ijrobp.2023.06.2128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Angiosarcoma of the scalp (AS) is a rare tumor and has often been treated by total scalp irradiation (TSI). TSI is a challenging technique because of the target close to the organs at risks (OARs), located in the skin surface, and helmet-shape of the target. We performed the dosimetric comparison of automated non-coplanar volumetric-modulated arc therapy (HA) and intensity-modulated proton therapy (IMPT) in TSI for AS. MATERIALS/METHODS A planning study was performed on 20 patients with AS. The clinical target volume (CTV) 1 and CTV2 were defined as gross tumor volume with margin and entire scalp, respectively. For HA, planning target volume (PTV) 1 and PTV2 were defined as CTV1 and CTV2 with 5-mm margins, respectively. For IMPT, robust optimization was utilized which accounted for a 5-mm setup and a 3.5% range uncertainty and dose was prescribed to CTV1 robust and CTV2 robust. The prescription doses were 70 Gy and 56 Gy in 35 fractions to PTV1 (CTV1 robust) and PTV2 (CTV2 robust), respectively, using the simultaneous integrated boost technique. The HA plan was performed using a 6-MV photon beam machine and a 1-cm thick virtual bolus. The HA plan included three half non-coplanar and one full coplanar arc fields. The HA plan used collimator angles of 15°, 60°, 15°, and 120° in the beam with couch rotations of 0°, 45°, 90°, and 315°, respectively. The IMPT plan was performed using a compact proton beam machine dedicated to pencil beam scanning. The IMPT plan used gantry angles of 70°, 150°, 70°, 150°, and 30° in the beam with couch rotations of 0°, 0°, 180°, 180°, and 270°, respectively. The IMPT plan was optimized assuming a relative biological effectiveness of 1.1. The dose distribution and dosimetric parameters for each plan were evaluated. RESULTS All plans met the goals within the acceptable range in target volume coverage, conformity, and homogeneity. Table shows the dosimetric parameters of OARs in HA and IMPT plans. The doses receiving 0.1 cc of the volume for hippocampus, optic passway, eye, and lens in the IMPT plan were significantly lower than those in the HA plan. The IMPT plan showed a significant reduction in the percentage of brain volume receiving at least 5 Gy (V5 Gy) compared to the HA plan, while the HA plan showed a significant reduction of V10 Gy - V60 Gy and mean brain dose compared to the IMPT plan. The HA plan provided a shorter beam-on time (184 ± 9 s) than did the IMPT plan (446 ± 49 s). CONCLUSION The HA and IMPT plans demonstrated different strengths with respect to OARs sparing.
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Affiliation(s)
- S Inui
- Department of Radiation Oncology, Osaka International Cancer Institute, Osaka, Japan; Department of Medical Physics and Engineering, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - N Tomita
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - T Takaoka
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Y Ueda
- Department of Radiation Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - S Ohira
- Department of Radiation Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - T Tsuchiya
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - M Miyazaki
- Department of Radiation Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - T Nishio
- Department of Medical Physics and Engineering, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - M Koizumi
- Department of Medical Physics and Engineering, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - K Konishi
- Department of Radiation Oncology, Osaka International Cancer Institute, Osaka, Japan
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Yamamoto M, Kitashiba H, Nishio T. Generation of Arabidopsis thaliana transformants showing the self-recognition activity of Brassica rapa. Plant J 2022; 111:496-507. [PMID: 35560670 DOI: 10.1111/tpj.15811] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 05/08/2022] [Accepted: 05/11/2022] [Indexed: 06/15/2023]
Abstract
Self-incompatibility in the Brassicaceae family is governed by SRK and SCR, which are two highly polymorphic genes located at the S-locus. Previously, the Arabidopsis lyrata SRK and SCR genes were introduced into Arabidopsis thaliana to generate self-incompatible lines. However, there are no reports showing that Brassica SRK and SCR genes confer self-incompatibility in A. thaliana. Doing so would further advance the mechanistic understanding of self-incompatibility in Brassicaceae. Therefore, we attempted to generate A. thaliana transformants showing the self-recognition activity of Brassica rapa by introducing BrSCR along with a chimeric BrSRK (BrSRK chimera, in which the kinase domain of BrSRK was replaced with that of AlSKR-b). We found that the BrSRK chimera and BrSCR of B. rapa S-9 and S-46 haplotypes, but not those of S-29, S-44, and S-60 haplotypes, conferred self-recognition activity in A. thaliana. Analyses of A. thaliana transformants expressing mutant variants of the BrSRK-9 chimera and BrSCR-9 revealed that mutations at the amino acid residues involved in BrSRK9-BrSCR9 interaction caused defects in the self-incompatibility response. The method developed in this study for generating self-incompatible A. thaliana transformants showing B. rapa self-recognition activity will be useful for analysis of self-recognition mechanisms in Brassicaceae.
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Affiliation(s)
- Masaya Yamamoto
- Graduate School of Agricultural Science, Tohoku University, 468-1, Aramaki Aza Aoba Aobaku, Sendai, Miyagi, 980-8572, Japan
| | - Hiroyasu Kitashiba
- Graduate School of Agricultural Science, Tohoku University, 468-1, Aramaki Aza Aoba Aobaku, Sendai, Miyagi, 980-8572, Japan
| | - Takeshi Nishio
- Graduate School of Agricultural Science, Tohoku University, 468-1, Aramaki Aza Aoba Aobaku, Sendai, Miyagi, 980-8572, Japan
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Kojima K, Nishida AT, Tashiro K, Hirota K, Nishio T, Murata M, Kato N, Kawaguchi S, Zine A, Ito J, Van De Water TR. Isolation and Characterization of Mammalian Otic Progenitor Cells that Can Differentiate into Both Sensory Epithelial and Neuronal Cell Lineages. Anat Rec (Hoboken) 2020; 303:451-460. [PMID: 31943808 DOI: 10.1002/ar.24335] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 11/25/2019] [Accepted: 12/03/2019] [Indexed: 01/01/2023]
Abstract
The mammalian inner ear mediates hearing and balance and during development generates both cochleo-vestibular ganglion neurons and sensory epithelial receptor cells, that is, hair cells and support cells. Cell marking experiments have shown that both hair cells and support cells can originate from a common progenitor. Here, we demonstrate the lineage potential of individual otic epithelial cell clones using three cell lines established by a combination of limiting dilution and gene-marking techniques from an embryonic day 12 (E12) rat otocyst. Cell-type specific marker analyses of these clonal lines under proliferation and differentiation culture conditions demonstrate that during differentiation immature cell markers (Nanog and Nestin) were downregulated and hair cell (Myosin VIIa and Math1), support cell (p27Kip1 and cytokeratin) and neuronal cell (NF-H and NeuroD) markers were upregulated. Our results suggest that the otic epithelium of the E12 mammalian inner ear possess multipotent progenitor cells able to generate cell types of both sensory epithelial and neural cell lineages when cultured under a differentiation culture condition. Understanding the molecular mechanisms of proliferation and differentiation of multipotent otic progenitor cells may provide insights that could contribute to the development of a novel cell therapy with a potential to initiate or stimulate the sensorineural repair of damaged inner ear sensory receptors. Anat Rec, 303:451-460, 2020. © 2019 American Association for Anatomy.
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Affiliation(s)
- Ken Kojima
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan.,University of Miami Ear Institute, Department of Otolaryngology, University of Miami School of Medicine, Miami, Florida.,Department of Integrative Brain Science, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Akiko T Nishida
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan.,Department of Medical Chemistry, Graduate School of Medicine, Kyoto University, Kyoto, Japan.,Center for Molecular Biology and Genetics, Kyoto University, Kyoto, Japan
| | - Kei Tashiro
- Center for Molecular Biology and Genetics, Kyoto University, Kyoto, Japan
| | - Kiichi Hirota
- BioMedical Special Research Unit, Human Stress Signal Research Center, National Institute of Advanced Industrial Science and Technology, Ikeda, Japan
| | - Takeshi Nishio
- Department of Integrative Brain Science, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Miyahiko Murata
- Department of Integrative Brain Science, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Nobuo Kato
- Department of Integrative Brain Science, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Saburo Kawaguchi
- Department of Integrative Brain Science, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Azel Zine
- Institute of Neuroscience, INSERM U. 583, University of Montpellier I, Montpellier, France
| | - Juichi Ito
- Department of Otolaryngology-Head and Neck Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Thomas R Van De Water
- University of Miami Ear Institute, Department of Otolaryngology, University of Miami School of Medicine, Miami, Florida
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Yamamoto M, Nishimura K, Kitashiba H, Sakamoto W, Nishio T. High temperature causes breakdown of S haplotype-dependent stigmatic self-incompatibility in self-incompatible Arabidopsis thaliana. J Exp Bot 2019; 70:5745-5751. [PMID: 31328225 PMCID: PMC6812698 DOI: 10.1093/jxb/erz343] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 07/16/2019] [Indexed: 05/24/2023]
Abstract
Commercial seeds of Brassicaceae vegetable crops are mostly F1 hybrids, the production of which depends on self-incompatibility during pollination. Self-incompatibility is known to be weakened by exposure to elevated temperatures, which may compromise future breeding and seed production. In the Brassicaceae, self-incompatibility is controlled by two genes, SRK and SCR, which function as female and male determinants of recognition specificity, respectively. However, the molecular mechanisms underlying the breakdown of self-incompatibility under high temperature are poorly understood. In this study, we examined the self-incompatibility phenotypes of self-incompatible Arabidopsis thaliana SRK-SCR transformants under normal (23 °C) and elevated (29 °C) temperatures. Exposure to elevated temperature caused defects in the stigmatic, but not the pollen, self-incompatibility response. In addition, differences in the response to elevated temperature were observed among different S haplotypes. Subcellular localization revealed that high temperature disrupted the targeting of SRK to the plasma membrane. SRK localization in plants transformed with different S haplotypes corresponded to their self-incompatibility phenotypes, further indicating that defects in SRK localization were responsible for the breakdown in the self-incompatibility response at high temperature. Our results provide new insights into the causes of instability in self-incompatibility phenotypes.
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Affiliation(s)
- Masaya Yamamoto
- Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi, Japan
| | - Kenji Nishimura
- Institute of Plant Science and Resources (IPSR), Okayama University, Kurashiki, Okayama, Japan
| | - Hiroyasu Kitashiba
- Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi, Japan
| | - Wataru Sakamoto
- Institute of Plant Science and Resources (IPSR), Okayama University, Kurashiki, Okayama, Japan
| | - Takeshi Nishio
- Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi, Japan
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Takeshima R, Nishio T, Komatsu S, Kurauchi N, Matsui K. Identification of a gene encoding polygalacturonase expressed specifically in short styles in distylous common buckwheat (Fagopyrum esculentum). Heredity (Edinb) 2019; 123:492-502. [PMID: 31076649 PMCID: PMC6781162 DOI: 10.1038/s41437-019-0227-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 04/11/2019] [Indexed: 11/09/2022] Open
Abstract
Common buckwheat (Fagopyrum esculentum) is a heteromorphic self-incompatible (SI) species with two types of floral architecture: thrum (short style) and pin (long style). The floral morphology and intra-morph incompatibility are controlled by a single genetic locus, S. However, the molecular mechanisms underlying the heteromorphic self-incompatibility of common buckwheat remain unclear. To identify these mechanisms, we performed proteomic, quantitative reverse-transcription PCR, and linkage analyses. Comparison of protein profiles between the long and short styles revealed a protein unique to the short style. Amino-acid sequencing revealed that it was a truncated form of polygalacturonase (PG); we designated the gene encoding this protein FePG1. Phylogenetic analysis classified FePG1 into the same clade as PGs that function in pollen development and floral morphology. FePG1 expression was significantly higher in short styles than in long styles. It was expressed in flowers of a short-homostyle line but not in flowers of a long-homostyle line. Linkage analysis indicated that FePG1 was not linked to the S locus; it could be a factor downstream of this locus. Our finding of a gene putatively working under the regulation of the S locus provides useful information for elucidation of the mechanism of heteromorphic self-incompatibility.
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Affiliation(s)
- Ryoma Takeshima
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO), Kannondai 2-1-2, Tsukuba, Ibaraki, 305-8518, Japan
| | | | - Setsuko Komatsu
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO), Kannondai 2-1-2, Tsukuba, Ibaraki, 305-8518, Japan
- Department of Environmental and Food Sciences, Fukui University of Technology, Gakuen 3-6-1, Fukui, 910-8505, Japan
| | - Nobuyuki Kurauchi
- College of Bioresource Sciences, Nihon University, 1866, Kameino, Fujisawa, Kanagawa, 252-0880, Japan
| | - Katsuhiro Matsui
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO), Kannondai 2-1-2, Tsukuba, Ibaraki, 305-8518, Japan.
- Graduate School of Life and Environmental Science, University of Tsukuba, Kannondai 2-1-2, Tsukuba, Ibaraki, 305-8518, Japan.
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Wang CL, Zhang ZP, Oikawa E, Kitashiba H, Nishio T. SCR-22 of pollen-dominant S haplotype class is recessive to SCR- 44 of pollen-recessive S haplotype class in Brassica rapa. Hortic Res 2019; 6:25. [PMID: 30729015 PMCID: PMC6355930 DOI: 10.1038/s41438-018-0103-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 10/07/2018] [Accepted: 10/14/2018] [Indexed: 05/05/2023]
Abstract
SCR/SP11 encodes the male determinant of recognition specificity of self-incompatibility (SI) in Brassica species and is sporophytically expressed in the anther tapetum. Based on dominance relationships in pollen and nucleotide sequence similarity, the S haplotypes in Brassica have been classified as class I or class II, with class-I S haplotypes being dominant over class-II S haplotypes. Here, we revealed that S-22 in B. rapa belonging to class I is recessive to class-II S-44 and class-I S-36 in pollen, whereas it is dominant over S-60, S-40, and S-29 based on pollination tests. SCR/SP11 of S-22 (SCR-22) was sequenced, revealing that the deduced amino-acid sequence of SCR-22 has the longest C-terminal domain among the SCR/SP11 sequences. The expression of SCR-22 was found to be suppressed in S-22/S-44 and S-22/S-36 heterozygotes. Normal transcription of SCR-44 was considered to be due to the transcription suppression of Smi sRNA of the S-22 haplotype and a very low methylation state of the SCR-44 promoter region in the tapetum of S-22/S-44 heterozygotes. In SCR-22, only the cytosine residue located at the -37 bp position of the promoter region was hypermethylated in the tapetum of S-22/S-44 heterozygotes, and few methylated cytosines were detected in the promoter and coding regions of SCR-22 in S-22/S-36 heterozygotes. SCR-22 was also expressed in microspores in S-22 homozygotes but not in S-22/S-44 and S-22/S-36 heterozygotes. These results suggest that a mechanism different from class-II SCR/SP11 suppression may operate for the suppression of recessive class-I SCR-22 in S heterozygotes.
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Affiliation(s)
- Chun-Lei Wang
- School of Horticulture and Plant Protection, Joint International Research Laboratory of Agriculture and Agri-Product Safety, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, 48 Wenhui East Road, Yangzhou, 225009 People’s Republic of China
- Graduate School of Agricultural Science, Tohoku University, 468-1 Aza-Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-0845 Japan
| | - Zhi-Ping Zhang
- School of Horticulture and Plant Protection, Joint International Research Laboratory of Agriculture and Agri-Product Safety, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, 48 Wenhui East Road, Yangzhou, 225009 People’s Republic of China
| | - Eriko Oikawa
- Graduate School of Agricultural Science, Tohoku University, 468-1 Aza-Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-0845 Japan
| | - Hiroyasu Kitashiba
- Graduate School of Agricultural Science, Tohoku University, 468-1 Aza-Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-0845 Japan
| | - Takeshi Nishio
- Graduate School of Agricultural Science, Tohoku University, 468-1 Aza-Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-0845 Japan
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Kato S, Sayama T, Ishimoto M, Yumoto S, Kikuchi A, Nishio T. The effect of stem growth habit on single seed weight and seed uniformity in soybean ( Glycine max (L.) Merrill). Breed Sci 2018; 68:352-359. [PMID: 30100802 PMCID: PMC6081300 DOI: 10.1270/jsbbs.17137] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 03/12/2018] [Indexed: 05/29/2023]
Abstract
The timing of flower formation and length of the seed-filling period of indeterminate growth soybean varieties vary more than those of determinate varieties (Glycine max (L.) Merrill). These variations have been hypothesized to affect single seed weight and its uniformity which determine the processing quality of soybean used in foods. We derived near isogenic lines (NILs) with different growth characteristics from an indeterminate line (donor parent) and three determinate lines with heavy seeds (recurrent parents), and evaluated the effects of growth habit on seed weight and its uniformity. Each NIL population consisting of five indeterminate and five determinate BC4F4 lines tested at two locations in two different years with two replications. Split-plot analysis of variance, with main-plot and sub-plot being cross combination and growth habit, respectively, showed that indeterminate varieties had slightly heavier seeds than determinate varieties and that there was no significant difference in uniformity of single seed weights. The effects of growth habit on seed uniformity was related to genetic background, but differences between the two growth characteristics were less than the differences among genetic background. This indicates that indeterminate growth habit did not much influence seed weight or its uniformity.
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Affiliation(s)
- Shin Kato
- Tohoku Agricultural Research Center, National Agriculture and Food Research Organization (NARO),
297 Uenodai, Kariwano, Daisen, Akita 019-2112,
Japan
| | - Takashi Sayama
- Western Region Agricultural Research Center, NARO,
1-3-1 Senyuu, Zentsuji, Kagawa 765-8508,
Japan
| | - Masao Ishimoto
- Institute of Crop Science, NARO,
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602,
Japan
| | - Setsuzo Yumoto
- Institute of Crop Science, NARO,
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602,
Japan
| | - Akio Kikuchi
- Tohoku Agricultural Research Center, National Agriculture and Food Research Organization (NARO),
297 Uenodai, Kariwano, Daisen, Akita 019-2112,
Japan
| | - Takeshi Nishio
- Graduate School of Agricultural Science, Tohoku University,
1-1 Tsutsumidori, Amamiyamachi, Aoba, Sendai, Miyagi 981-8555,
Japan
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Nishio T, Fujiwara H, Kanno I. Immediate elimination of injured white matter tissue achieves a rapid axonal growth across the severed spinal cord in adult rats. Neurosci Res 2017; 131:19-29. [PMID: 29104072 DOI: 10.1016/j.neures.2017.10.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Revised: 10/08/2017] [Accepted: 10/26/2017] [Indexed: 12/16/2022]
Abstract
In general, axonal regeneration is very limited after transection of adult rat spinal cord. We previously demonstrated that regenerative axons reached the lesion site within 6h of sharp transection with a thin scalpel. However, they failed to grow across the lesion site, where injured axon fragments (axon-glial complex, AGC) were accumulated. Considering a possible role of these axon fragments as physicochemical barriers, we examined the effects of prompt elimination of the barriers on axonal growth beyond the lesion site. In this study, we made additional oblique section immediately after the primary transection and surgically eliminated the AGC (debridement). Under this treatment, regenerative axons successfully traversed the lesion site within 4h of surgery. To exclude axonal sparing, we further inserted a pored sheet into the debrided lesion and observed the presence of fascicles of unmyelinated axons traversing the sheet through the pores by electron microscopy, indicating bona fide regeneration. These results suggest that the sequential trial of reduction and early elimination of the physicochemical barriers is one of the effective approaches to induce spontaneous and rapid regeneration beyond the lesion site.
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Affiliation(s)
- Takeshi Nishio
- Department of Integrative Brain Science, Kyoto University Graduate School of Medicine, Yoshida-Konoe, Sakyo, Kyoto 606-8501, Japan.
| | - Hiroshi Fujiwara
- Department of Obstetrics and Gynecology, Kanazawa University Graduate School of Medical Sciences, Takara-Machi 13-1, Kanazawa 920-8641, Japan
| | - Isaku Kanno
- Department of Mechanical Engineering, Kobe University, Rokkodai-cho 1-1, Nada-ku, Kobe 657-8501, Japan
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Abstract
BACKGROUND The impact of basophils on asthma pathogenesis remains largely unexplored, particularly in humans. Here, we evaluated the frequencies and activation status of basophils in the sputum of adult asthmatic patients and related our findings to other parameters of eosinophilic airway inflammation. METHODS We enrolled 44 adult asthmatic patients who were being treated with inhaled corticosteroids (ICS). Analysis of the induced sputum, exhaled nitric oxide fraction (FeNO) measurement, and asthma control test (ACT) were carried out together with standard blood and pulmonary function tests. The cellular composition of the sputum was examined by flow cytometry, and the phenotypes of blood and sputum basophils were compared. RESULTS Basophils were increased in the sputum of asthmatic patients. The expression of CD203c on sputum basophils was significantly higher than that on blood basophils. The percentage of sputum basophils was positively correlated with those of eosinophils and mast cells; it was also correlated with that of blood eosinophils and FeNO. However, sputum basophils were not correlated with serum IgE, lung function, or the percentage of blood basophils. A receiver-operating characteristic (ROC) curve showed the superiority of sputum basophils as a surrogate marker of the percentages of sputum eosinophils compared with absolute numbers of blood eosinophils and FeNO. CONCLUSION The number of activated basophils was increased in the sputum of patients with eosinophilic asthma and correlated with airway and blood eosinophils. Our observations suggest that sputum basophils may serve as a biomarker to monitor new therapeutic approaches for the treatment of eosinophilic asthma.
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Affiliation(s)
- Y Suzuki
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - K Wakahara
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - T Nishio
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - S Ito
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Y Hasegawa
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Kakizaki T, Kitashiba H, Zou Z, Li F, Fukino N, Ohara T, Nishio T, Ishida M. A 2-Oxoglutarate-Dependent Dioxygenase Mediates the Biosynthesis of Glucoraphasatin in Radish. Plant Physiol 2017; 173:1583-1593. [PMID: 28100450 PMCID: PMC5338677 DOI: 10.1104/pp.16.01814] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 01/16/2017] [Indexed: 05/22/2023]
Abstract
Glucosinolates (GSLs) are secondary metabolites whose degradation products confer intrinsic flavors and aromas to Brassicaceae vegetables. Several structures of GSLs are known in the Brassicaceae, and the biosynthetic pathway and regulatory networks have been elucidated in Arabidopsis (Arabidopsis thaliana). GSLs are precursors of chemical defense substances against herbivorous pests. Specific GSLs can act as feeding blockers or stimulants, depending on the pest species. Natural selection has led to diversity in the GSL composition even within individual species. However, in radish (Raphanus sativus), glucoraphasatin (4-methylthio-3-butenyl glucosinolate) accounts for more than 90% of the total GSLs, and little compositional variation is observed. Because glucoraphasatin is not contained in other members of the Brassicaceae, like Arabidopsis and cabbage (Brassica oleracea), the biosynthetic pathways for glucoraphasatin remain unclear. In this report, we identified and characterized a gene encoding GLUCORAPHASATIN SYNTHASE 1 (GRS1) by genetic mapping using a mutant that genetically lacks glucoraphasatin. Transgenic Arabidopsis, which overexpressed GRS1 cDNA, accumulated glucoraphasatin in the leaves. GRS1 encodes a 2-oxoglutarate-dependent dioxygenase, and it is abundantly expressed in the leaf. To further investigate the biosynthesis and transportation of GSLs in radish, we grafted a grs1 plant onto a wild-type plant. The grafting experiment revealed a leaf-to-root long-distance glucoraphasatin transport system in radish and showed that the composition of GSLs differed among the organs. Based on these observations, we propose a characteristic biosynthesis pathway for glucoraphasatin in radish. Our results should be useful in metabolite engineering for breeding of high-value vegetables.
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Affiliation(s)
- Tomohiro Kakizaki
- Division of Vegetable Breeding, Institute of Vegetable and Floriculture Science, NARO, Ano, Tsu, Mie 514-2392, Japan (T.K., N.F., T.O., M.I.);
- and Graduate School of Agricultural Science, Tohoku University, Aoba-ku, Sendai, Miyagi 980-0845, Japan (H.K., Z.Z., F.L., T.N.)
| | - Hiroyasu Kitashiba
- Division of Vegetable Breeding, Institute of Vegetable and Floriculture Science, NARO, Ano, Tsu, Mie 514-2392, Japan (T.K., N.F., T.O., M.I.)
- and Graduate School of Agricultural Science, Tohoku University, Aoba-ku, Sendai, Miyagi 980-0845, Japan (H.K., Z.Z., F.L., T.N.)
| | - Zhongwei Zou
- Division of Vegetable Breeding, Institute of Vegetable and Floriculture Science, NARO, Ano, Tsu, Mie 514-2392, Japan (T.K., N.F., T.O., M.I.)
- and Graduate School of Agricultural Science, Tohoku University, Aoba-ku, Sendai, Miyagi 980-0845, Japan (H.K., Z.Z., F.L., T.N.)
| | - Feng Li
- Division of Vegetable Breeding, Institute of Vegetable and Floriculture Science, NARO, Ano, Tsu, Mie 514-2392, Japan (T.K., N.F., T.O., M.I.)
- and Graduate School of Agricultural Science, Tohoku University, Aoba-ku, Sendai, Miyagi 980-0845, Japan (H.K., Z.Z., F.L., T.N.)
| | - Nobuko Fukino
- Division of Vegetable Breeding, Institute of Vegetable and Floriculture Science, NARO, Ano, Tsu, Mie 514-2392, Japan (T.K., N.F., T.O., M.I.)
- and Graduate School of Agricultural Science, Tohoku University, Aoba-ku, Sendai, Miyagi 980-0845, Japan (H.K., Z.Z., F.L., T.N.)
| | - Takayoshi Ohara
- Division of Vegetable Breeding, Institute of Vegetable and Floriculture Science, NARO, Ano, Tsu, Mie 514-2392, Japan (T.K., N.F., T.O., M.I.)
- and Graduate School of Agricultural Science, Tohoku University, Aoba-ku, Sendai, Miyagi 980-0845, Japan (H.K., Z.Z., F.L., T.N.)
| | - Takeshi Nishio
- Division of Vegetable Breeding, Institute of Vegetable and Floriculture Science, NARO, Ano, Tsu, Mie 514-2392, Japan (T.K., N.F., T.O., M.I.)
- and Graduate School of Agricultural Science, Tohoku University, Aoba-ku, Sendai, Miyagi 980-0845, Japan (H.K., Z.Z., F.L., T.N.)
| | - Masahiko Ishida
- Division of Vegetable Breeding, Institute of Vegetable and Floriculture Science, NARO, Ano, Tsu, Mie 514-2392, Japan (T.K., N.F., T.O., M.I.)
- and Graduate School of Agricultural Science, Tohoku University, Aoba-ku, Sendai, Miyagi 980-0845, Japan (H.K., Z.Z., F.L., T.N.)
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Kitashiba H, Taguchi K, Kaneko I, Inaba K, Yokoi S, Takahata Y, Nishio T. Identification of loci associated with embryo yield in microspore culture of Brassica rapa by segregation distortion analysis. Plant Cell Rep 2016; 35:2197-204. [PMID: 27438134 DOI: 10.1007/s00299-016-2029-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Accepted: 07/13/2016] [Indexed: 05/08/2023]
Abstract
We identified three physical positions associated with embryo yield in microspore culture of Brassica rapa by segregation distortion analysis. We also confirmed their genetic effects on the embryo yield. Isolated microspore culture is well utilized for the production of haploid or doubled-haploid plants in Brassica crops. Brassica rapa cv. 'Ho Mei' is one of the most excellent cultivars in embryo yield of microspore culture. To identify the loci associated with microspore embryogenesis, segregation analysis of 154 DNA markers anchored to B. rapa chromosomes (A01-A10) was performed using a population of microspore-derived embryos obtained from an F1 hybrid between 'CR-Seiga', a low yield cultivar in microspore-derived embryos, and 'Ho Mei'. Three regions showing significant segregation distortion with increasing 'Ho Mei' alleles were detected on A05, A08 and A09, although these regions showed the expected Mendelian segregation ratio in an F2 population. The additive effect of alleles in these regions on embryo yield was confirmed in a BC3F1 population. One region on A08 containing Br071-5c had a higher effect than the other regions. Polymorphism of nucleotide sequences around the Br071-5c locus was investigated to find the gene possibly responsible for efficient embryogenesis from microspores.
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Affiliation(s)
- Hiroyasu Kitashiba
- Graduate School of Agricultural Science, Tohoku University, 1-1, Tsutsumidori-Amamiyamachi, Sendai, Miyagi, 981-8555, Japan.
| | - Kumiko Taguchi
- Graduate School of Agricultural Science, Tohoku University, 1-1, Tsutsumidori-Amamiyamachi, Sendai, Miyagi, 981-8555, Japan
| | - Ikuyo Kaneko
- Graduate School of Agricultural Science, Tohoku University, 1-1, Tsutsumidori-Amamiyamachi, Sendai, Miyagi, 981-8555, Japan
| | - Kiyofumi Inaba
- Graduate School of Agricultural Science, Tohoku University, 1-1, Tsutsumidori-Amamiyamachi, Sendai, Miyagi, 981-8555, Japan
| | - Shuji Yokoi
- Faculty of Agriculture, Iwate University, Morioka, Japan
- Graduate School of Life and Environmental Science, Osaka Prefecture University, Sakai, Japan
| | | | - Takeshi Nishio
- Graduate School of Agricultural Science, Tohoku University, 1-1, Tsutsumidori-Amamiyamachi, Sendai, Miyagi, 981-8555, Japan
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13
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Nishibuchi I, Murakami Y, Takahashi I, Takeuchi Y, Saito A, Kimura T, Nishio T, Nagata Y. Salvage Radiation Therapy for Superficial Esophageal Cancer After Incomplete Endoscopic Resection. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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14
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Kimura T, Nakashima T, Saito A, Takeuchi Y, Takahashi I, Nishibuchi I, Murakami Y, Nishio T, Nagata Y. Combined Ventilation and Perfusion Imaging Correlates With the Dosimetric Parameters of Radiation Pneumonitis in Radiation Therapy Planning for Lung Cancer. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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15
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Abstract
Objectives: The age-related changes in distribution of α-gustducin–immunoreactive structures in the larynx of Sprague-Dawley rats were studied. Methods: For this purpose, tissues obtained from 12 male rats ranging in age from 5 to 21 weeks were compared with respect to the distribution and morphology of laryngeal taste buds immunoreactive for α-gustducin, the α-subunit of a taste cell–specific G protein. Results: Three different morphological types of α-gustducin–immunoreactive structures were seen: typical gemmal forms, clusters composed of 2 or 3 cells, and isolated immunoreactive cells not associated with taste buds. α-Gustducin–immunoreactive structures were most abundant in the epiglottis in all age groups. α-Gustducin–immunoreactive cells in rats seem to be located along the lateral food channels, in which they may come in contact with food. The total number of these α-gustducin–immunoreactive structures did not show any age-related changes, but the percentage of solitary immunoreactive cells in 5-week-old rats was significantly larger than the percentages in 8-, 14-, and 21-week-old animals. Conclusions: Solitary α-gustducin–immunoreactive cells, which are abundant in 5-week-old rats but are found in fewer numbers along the base of the epiglottis in mature rats, may be nociceptic in function, whereas the chemosensory clusters or buds that contain α-gustducin–positive cells and are distributed along the lateral food channels on the pharyngeal side of the larynx may have a role in gustatory reception.
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Affiliation(s)
- Takeshi Nishio
- Department of Otolaryngology-Head and Neck Surgery, Kyoto Prefectural University of Medicine, Kawaramachi-Hirokoji, Kyoto 602-8566, Japan
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16
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Kawahara D, Ozawa S, Saito A, Nishio T, Hioki K, Masuda H, Okumura T, Ochi Y, Nakashima T, Suzuki T, Tanaka S, Ohno Y, Nagata Y. SU-F-T-630: Energy Spectral Study On Lipiodol After Trans-Arterial Chemoembolization Using the Flattened and Unflattened Photon Beams. Med Phys 2016. [DOI: 10.1118/1.4956815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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17
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Tsuneda M, Nishio T, Saito A, Hioki K, Kawahara D, Ochi Y, Matsushita K, Tanaka S, Ozawa S, Nagata Y. SU-G-BRB-09: Kompeito-Shot: Development of a Novel Verification System for 3D Beam Alignment Including the Sag of Gantry Head. Med Phys 2016. [DOI: 10.1118/1.4956916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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18
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Tanaka S, Nishio T, Matsushita K, Tsuneda M, Kabuki S, Uesaka M. SU-C-207A-03: Development of Proton CT Imaging System Using Thick Scintillator and CCD Camera. Med Phys 2016. [DOI: 10.1118/1.4955578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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19
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Nishio T, Takashi Okamoto T, Shinto Kabuki S, Toru Tanimori T, Tsukasa Aso T, Satoshi Nakamura S, Masahiro Hiraoka M, Keiichirou Matsushita K, Aya Nishio-Miyatake A. EP-1500: Development of tumor response observation system for dose-volume delivery guided particle therapy. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)32750-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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20
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Iihara N, Bando Y, Ohara M, Yoshida T, Nishio T, Okada T, Kirino Y. Polypharmacy of medications and fall-related fractures in older people in Japan: a comparison between driving-prohibited and driving-cautioned medications. J Clin Pharm Ther 2016; 41:273-8. [DOI: 10.1111/jcpt.12381] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Accepted: 02/22/2016] [Indexed: 12/12/2022]
Affiliation(s)
- N. Iihara
- Kagawa School of Pharmaceutical Sciences; Tokushima Bunri University; Sanuki-City Kagawa Japan
| | - Y. Bando
- Faculty of Health and Welfare; Tokushima Bunri University; Sanuki-City Kagawa Japan
| | - M. Ohara
- Ayagawa National Health Insurance Sue Hospital; Ayauta-gun Kagawa Japan
| | - T. Yoshida
- Faculty of Health and Welfare; Tokushima Bunri University; Sanuki-City Kagawa Japan
| | - T. Nishio
- Graduate School of Pharmaceutical Sciences; Tokushima Bunri University; Sanuki-City Kagawa Japan
- Department of Pharmacy; Sanuki City Hospital; Sanuki-City Kagawa Japan
| | - T. Okada
- Kagawa School of Pharmaceutical Sciences; Tokushima Bunri University; Sanuki-City Kagawa Japan
| | - Y. Kirino
- Kagawa School of Pharmaceutical Sciences; Tokushima Bunri University; Sanuki-City Kagawa Japan
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21
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Kato S, Takada Y, Shimamura S, Hirata K, Sayama T, Taguchi-Shiobara F, Ishimoto M, Kikuchi A, Nishio T. Transfer of the Rsv3 locus from 'Harosoy' for resistance to soybean mosaic virus strains C and D in Japan. Breed Sci 2016; 66:319-27. [PMID: 27162503 PMCID: PMC4785009 DOI: 10.1270/jsbbs.66.319] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Accepted: 11/05/2015] [Indexed: 05/10/2023]
Abstract
Resistance to soybean mosaic virus (SMV) is imperative for soybean (Glycine max (L.) Merr.) production in the Tohoku region. Molecular markers for SMV resistance were previously reported for U.S. SMV strains, but they cannot be applied because of the differences in strain classification between Japan and the U.S. A U.S. variety 'Harosoy' has been used mainly as a donor of resistance to SMV strains C and D in a Japanese breeding program, resulting in resistant varieties such as 'Fukuibuki.' Because 'Harosoy' harbors the Rsv3 gene conferring resistance to the virulent SMV strain groups, G5 through G7, it appears that the Rsv3 gene confers resistance to strains C and D. In this study, we introduced resistance to the two strains from 'Fukuibuki' into a leading variety 'Ohsuzu' by recurrent backcrossing with marker-assisted selection. All lines selected with markers near Rsv3 showed resistance to the strains, suggesting that the Rsv3 locus is responsible for the resistance. Three years of trials showed that one of the breeding lines, 'Tohoku 169,' was equivalent to 'Ohsuzu' with respect to agricultural characteristics such as seed size, maturity date, and seed yield, except for the SMV resistance.
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Affiliation(s)
- Shin Kato
- NARO Tohoku Agricultural Research Center,
297 Uenodai, Kariwano, Daisen, Akita 019-2112,
Japan
- Corresponding author (e-mail: )
| | - Yoshitake Takada
- NARO Western Region Agricultural Research Center,
1-3-1 Senyuu, Zentsuji, Kagawa 765-8508,
Japan
| | - Satoshi Shimamura
- NARO Tohoku Agricultural Research Center,
297 Uenodai, Kariwano, Daisen, Akita 019-2112,
Japan
| | - Kaori Hirata
- NARO Tohoku Agricultural Research Center,
297 Uenodai, Kariwano, Daisen, Akita 019-2112,
Japan
| | - Takashi Sayama
- National Institute of Agrobiological Sciences,
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602,
Japan
| | - Fumio Taguchi-Shiobara
- National Institute of Agrobiological Sciences,
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602,
Japan
| | - Masao Ishimoto
- National Institute of Agrobiological Sciences,
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602,
Japan
| | - Akio Kikuchi
- NARO Tohoku Agricultural Research Center,
297 Uenodai, Kariwano, Daisen, Akita 019-2112,
Japan
| | - Takeshi Nishio
- Graduate School of Agricultural Science, Tohoku University,
1-1 Tsutsumidori, Amamiyamachi, Aoba, Sendai, Miyagi 981-8555,
Japan
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22
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Endo T, Chiba B, Wagatsuma K, Saeki K, Ando T, Shomura A, Mizubayashi T, Ueda T, Yamamoto T, Nishio T. Detection of QTLs for cold tolerance of rice cultivar 'Kuchum' and effect of QTL pyramiding. Theor Appl Genet 2016; 129:631-40. [PMID: 26747044 DOI: 10.1007/s00122-015-2654-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Accepted: 12/11/2015] [Indexed: 05/03/2023]
Abstract
A QTL for cold tolerance at the booting stage of rice cultivar 'Kuchum' was detected and delimited into a 1.36 Mb region, and a cold-tolerant line was developed by QTL pyramiding. Low temperature in summer causes pollen sterility in rice, resulting in a serious loss of yield. The second most widely grown rice cultivar in Japan, 'Hitomebore', has been developed as a cultivar highly tolerant to low temperature at the booting stage. However, even 'Hitomebore' exhibits sterility at a temperature lower than 18.5 °C. Further improvement of cold tolerance of rice is required. In the present study, QTLs for cold tolerance in a Bhutanese rice variety, 'Kuchum', were analyzed using backcrossed progenies and a major QTL, named qCT-4, was detected on chromosome 4. Evaluating cold tolerance of seven types of near isogenic lines having 'Kuchum' alleles around qCT-4 with a 'Hitomebore' genetic background, qCT-4 was delimited to a region of ca. 1.36 Mb between DNA markers 9_1 and 10_13. Homozygous 'Kuchum' alleles at qCT-4 showed an effect of increasing seed fertility by ca. 10 % under cold-water treatment. Near isogenic lines of 'Hitomebore' having 'Silewah' alleles of Ctb1 and Ctb2 and a 'Hokkai PL9' allele of qCTB8 did not exhibit higher cold tolerance than that of 'Hitomebore'. On the other hand, a qLTB3 allele derived from a Chinese cultivar 'Lijiangxintuanheigu' increased cold tolerance of 'Hitomebore', and pyramiding of the qCT-4 allele and the qLTB3 allele further increased seed fertility under cold-water treatment. Since NILs of 'Hitomebore' with the 'Kuchum' allele of qCT-4 were highly similar to 'Hitomebore' in other agronomic traits, the qCT-4 allele is considered to be useful for developing a cold-tolerant cultivar.
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Affiliation(s)
- Takashi Endo
- Miyagi Prefectural Furukawa Agricultural Experiment Station, Osaki, Miyagi, 989-6227, Japan
| | - Bunya Chiba
- Miyagi Prefectural Furukawa Agricultural Experiment Station, Osaki, Miyagi, 989-6227, Japan
- Miyagi Pref. Northern Regional Promotion Office Kurihara Regional Office, Fujiki,Tsukidate, Kurihara, Miyagi, 987-2251, Japan
| | - Kensuke Wagatsuma
- Miyagi Prefectural Furukawa Agricultural Experiment Station, Osaki, Miyagi, 989-6227, Japan
- Earthquake Reconstruction and Planning Department, Miyagi Prefectural Office, Honcho, Aoba-ku, Sendai, Miyagi, 980-8570, Japan
| | - Kenichi Saeki
- Miyagi Prefectural Furukawa Agricultural Experiment Station, Osaki, Miyagi, 989-6227, Japan
| | - Tsuyu Ando
- National Institute of Agrobiological Sciences, Tsukuba, Ibaraki, 305-8602, Japan
| | - Ayahiko Shomura
- National Institute of Agrobiological Sciences, Tsukuba, Ibaraki, 305-8602, Japan
| | - Tatsumi Mizubayashi
- National Institute of Agrobiological Sciences, Tsukuba, Ibaraki, 305-8602, Japan
| | - Tadamasa Ueda
- National Institute of Agrobiological Sciences, Tsukuba, Ibaraki, 305-8602, Japan
| | - Toshio Yamamoto
- National Institute of Agrobiological Sciences, Tsukuba, Ibaraki, 305-8602, Japan
| | - Takeshi Nishio
- Graduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amamiyamachi, Aoba-ku, Sendai, Miyagi, 981-8555, Japan.
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Mukudai S, Ichi Matsuda K, Bando H, Takanami K, Nishio T, Sugiyama Y, Hisa Y, Kawata M. Expression of Sex Steroid Hormone Receptors in Vagal Motor Neurons Innervating the Trachea and Esophagus in Mouse. Acta Histochem Cytochem 2016; 49:37-46. [PMID: 27006520 PMCID: PMC4794553 DOI: 10.1267/ahc.15037] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 01/22/2016] [Indexed: 12/11/2022] Open
Abstract
The medullary vagal motor nuclei, the nucleus ambiguus (NA) and dorsal motor nucleus of the vagus (DMV), innervate the respiratory and gastrointestinal tracts. We conducted immunohistochemical analysis of expression of the androgen receptor (AR) and estrogen receptor α (ERα), in relation to innervation of the trachea and esophagus via vagal motor nuclei in mice. AR and ERα were expressed in the rostral NA and in part of the DMV. Tracing experiments using cholera toxin B subunit demonstrated that neurons of vagal motor nuclei that innervate the trachea and esophagus express AR and ERα. There was no difference in expression of sex steroid hormone receptors between trachea- and esophagus-innervating neurons. These results suggest that sex steroid hormones may act on vagal motor nuclei via their receptors, thereby regulating functions of the trachea and esophagus.
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Affiliation(s)
- Shigeyuki Mukudai
- Department of Anatomy and Neurobiology, Kyoto Prefectural University of Medicine
- Department of Otolaryngology-Head and Neck Surgery, Kyoto Prefectural University of Medicine
- Department of Otolaryngology-Bronchoesophagology, Kyoto Second Red Cross Hospital
| | - Ken Ichi Matsuda
- Department of Anatomy and Neurobiology, Kyoto Prefectural University of Medicine
| | - Hideki Bando
- Department of Otolaryngology-Head and Neck Surgery, Kyoto Prefectural University of Medicine
| | - Keiko Takanami
- Department of Anatomy and Neurobiology, Kyoto Prefectural University of Medicine
- Ushimado Marine Institute, Graduate School of Natural Science and Technology, Okayama University
| | - Takeshi Nishio
- Department of Otolaryngology-Head and Neck Surgery, Kyoto Prefectural University of Medicine
| | - Yoichiro Sugiyama
- Department of Otolaryngology-Head and Neck Surgery, Kyoto Prefectural University of Medicine
| | - Yasuo Hisa
- Department of Otolaryngology-Head and Neck Surgery, Kyoto Prefectural University of Medicine
- Faculty of Health and Medical Sciences, Kyoto Gakuen University
| | - Mitsuhiro Kawata
- Department of Anatomy and Neurobiology, Kyoto Prefectural University of Medicine
- School of Health Sciences, Bukkyo University
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Kimura K, Usugi T, Hoshi H, Kato A, Ono T, Koyano S, Kagiwada S, Nishio T, Tsuda S. Surveys of Viruliferous Alate Aphid of Plum pox virus in Prunus mume Orchards in Japan. Plant Dis 2016; 100:40-48. [PMID: 30688586 DOI: 10.1094/pdis-05-15-0540-re] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Plum pox virus (PPV) is transmitted by infected buds and aphids. It is important to analyze the outbreak trends and viruliferous rate of aphids in areas where the occurrence of PPV is reported, so as to develop strategies for disease control. Between April 2011 and December 2012, yellow insect-trapping adhesive plates were placed for 2 days at a time each week in an area where PPV is occurring in Japan. Outbreak trends were analyzed based on the trapped alate aphid samples, and up to 50 of them were tested per week to identify species and determine the rate of viruliferous specimens. Although the number of aphids varied according to survey year, three peaks were noticeable in each year. Based on the sequence data for the mitochondrial cytochrome c oxidase I region, approximately 40 different species of aphid were trapped in both years. Of the five dominant species of aphids identified during the 2 years, Aphis spiraecola was trapped in large numbers. PPV-positive aphids were higher in fall onward, when the total number of trapped aphids decreased, than in spring and summer, when a larger number of aphids was caught. PPV transmission tests using the most abundant species revealed that A. spiraecola, A. craccivora, A. gossypii, and Rhopalosiphum maidis were transmitters, although A. spiraecola is likely of epidemiological significance.
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Affiliation(s)
- Kota Kimura
- NARO Agricultural Research Center, Kan-nondai, Tsukuba, Ibaraki 305-8666, Japan; and Department of Clinical Plant Science, Faculty of Bioscience and Applied Chemistry, Hosei University, Kajino-cho, Koganei, Tokyo 184-8584
| | | | - Hideo Hoshi
- Tokyo Metropolitan Agriculture and Forestry Research Center, Fujimi-cho, Tachikawa, Tokyo 190-0013
| | - Ayana Kato
- Tokyo Metropolitan Agriculture and Forestry Research Center, Fujimi-cho, Tachikawa, Tokyo 190-0013
| | - Tsuyoshi Ono
- Tokyo Metropolitan Agriculture and Forestry Research Center, Fujimi-cho, Tachikawa, Tokyo 190-0013
| | - Shinji Koyano
- Tokyo Metropolitan Agriculture and Forestry Research Center, Fujimi-cho, Tachikawa, Tokyo 190-0013
| | - Satoshi Kagiwada
- Department of Clinical Plant Science, Faculty of Bioscience and Applied Chemistry, Hosei University
| | - Takeshi Nishio
- Department of Clinical Plant Science, Faculty of Bioscience and Applied Chemistry, Hosei University
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Li F, Chen B, Xu K, Gao G, Yan G, Qiao J, Li J, Li H, Li L, Xiao X, Zhang T, Nishio T, Wu X. A genome-wide association study of plant height and primary branch number in rapeseed (Brassica napus). Plant Sci 2016; 242:169-177. [PMID: 26566834 DOI: 10.1016/j.plantsci.2015.05.012] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Revised: 05/14/2015] [Accepted: 05/17/2015] [Indexed: 05/18/2023]
Abstract
Crop plant architecture plays a highly important role in its agronomic performance. Plant height (PH) and primary branch number (PB) are two major factors that affect the plant architecture of rapeseed (Brassica napus). Previous studies have shown that these two traits are controlled by multiple quantitative trait loci (QTL); however, QTLs have not been delimited to regions less than 10cM. Genome-wide association study (GWAS) is a highly efficient approach for identifying genetic loci controlling traits at relatively high resolution. In this study, variations in PH and PB of a panel of 472 rapeseed accessions that had previously been analyzed by a 60k SNP array were investigated for three consecutive years and studied by GWAS. Eight QTLs on chromosome A03, A05, A07 and C07 were identified for PH, and five QTLs on A01, A03, A07 and C07 were identified for PB. Although most QTLs have been detected in previous studies based on linkage analyses, the two QTLs of PH on A05 and the QTL of PB on C07 were novel. In the genomic regions close to the GWAS peaks, orthologs of the genes involved in flower development, phytohormone biosynthesis, metabolism and signaling in Arabidopsis were identified.
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Affiliation(s)
- Feng Li
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crop Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China; Graduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori Amamiyamachi, Aoba-ku, Sendai, Miyagi 981-8555, Japan
| | - Biyun Chen
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crop Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China
| | - Kun Xu
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crop Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China
| | - Guizhen Gao
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crop Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China
| | - Guixin Yan
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crop Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China
| | - Jiangwei Qiao
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crop Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China
| | - Jun Li
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crop Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China
| | - Hao Li
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crop Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China
| | - Lixia Li
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crop Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China
| | - Xin Xiao
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crop Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China
| | - Tianyao Zhang
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crop Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China
| | - Takeshi Nishio
- Graduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori Amamiyamachi, Aoba-ku, Sendai, Miyagi 981-8555, Japan
| | - Xiaoming Wu
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crop Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China.
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Ishida M, Kakizaki T, Morimitsu Y, Ohara T, Hatakeyama K, Yoshiaki H, Kohori J, Nishio T. Novel glucosinolate composition lacking 4-methylthio-3-butenyl glucosinolate in Japanese white radish (Raphanus sativus L.). Theor Appl Genet 2015; 128:2037-2046. [PMID: 26152572 DOI: 10.1007/s00122-015-2564-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2015] [Accepted: 06/13/2015] [Indexed: 06/04/2023]
Abstract
Genetic analysis and gene mapping of the 4-methylthio-3-butenyl glucosinolate-less trait of white radish were performed and a white radish cultivar with new glucosinolate composition was developed. A spontaneous mutant having significantly low 4-methylthio-3-butenyl glucosinolate (4MTB-GSL) content was identified from a landrace of Japanese white radish (Raphanus sativus L.) through intensive evaluation of glucosinolate profiles of 632 lines including genetic resources and commercial cultivars using high-performance liquid chromatography (HPLC) analysis. A line lacking 4MTB-GSL was developed using the selected mutant as a gene source. Genetic analyses of F1, F2, and BC1F1 populations of this line suggested that the 4MTB-GSL-less trait is controlled by a single recessive allele. Using SNP and SCAR markers, 96 F2 plants were genotyped, and a linkage map having nine linkage groups with a total map distance of 808.3 cM was constructed. A gene responsible for the 4MTB-GSL-less trait was mapped between CL1753 and CL5895 at the end of linkage group 1. The genetic distance between these markers was 4.2 cM. By selfing and selection of plants lacking 4MTB-GSL, a new cultivar, 'Daikon parental line No. 5', was successfully developed. This cultivar was characterized by glucoerucin, which accounted for more than 90% of the total glucosinolates (GSLs). The total GSL content in roots was ca. 12 μmol/g DW, significantly lower than those in common white radish cultivars. Significance of this line in radish breeding is discussed.
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Affiliation(s)
- Masahiko Ishida
- NARO Institute of Vegetable and Tea Science, Tsukuba Vegetable Research Station, 3-1-1 Kannondai, Tsukuba, 305-8666, Japan
| | - Tomohiro Kakizaki
- NARO Institute of Vegetable and Tea Science, 360 Kusawa, Ano, Tsu, Mie, 514-2392, Japan
| | - Yasujiro Morimitsu
- The Department of Food and Nutritional Sciences, The Graduate School of Humanities and Sciences, Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo, 112-8610, Japan
| | - Takayoshi Ohara
- NARO Institute of Vegetable and Tea Science, 360 Kusawa, Ano, Tsu, Mie, 514-2392, Japan
| | - Katsunori Hatakeyama
- NARO Institute of Vegetable and Tea Science, 360 Kusawa, Ano, Tsu, Mie, 514-2392, Japan
| | - Hitoshi Yoshiaki
- NARO Institute of Vegetable and Tea Science, 360 Kusawa, Ano, Tsu, Mie, 514-2392, Japan
| | - Junna Kohori
- NARO Institute of Vegetable and Tea Science, 360 Kusawa, Ano, Tsu, Mie, 514-2392, Japan
| | - Takeshi Nishio
- Graduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori Amamiya-machi, Aoba-ku, Sendai, Miyagi, 981-8555, Japan.
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Yong HY, Wang C, Bancroft I, Li F, Wu X, Kitashiba H, Nishio T. Identification of a gene controlling variation in the salt tolerance of rapeseed (Brassica napus L.). Planta 2015; 242:313-26. [PMID: 25921693 DOI: 10.1007/s00425-015-2310-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Accepted: 04/17/2015] [Indexed: 05/18/2023]
Abstract
By genome-wide association study, QTLs for salt tolerance in rapeseed were detected, and a TSN1 ortholog was identified as a candidate gene responsible for genetic variation in cultivars. Dissecting the genomic regions governing abiotic stress tolerance is necessary for marker-assisted breeding to produce elite breeding lines. In this study, a world-wide collection of rapeseed was evaluated for salt tolerance. These rapeseed accessions showed a large variation for salt tolerance index ranging from 0.311 to 0.999. Although no significant correlation between salt tolerance and Na(+) content was observed, there was a significant negative correlation between shoot biomass production under a control condition and salt tolerance. These rapeseed accessions were genotyped by DArTseq for a total of 51,109 genetic markers, which were aligned with 'pseudomolecules' representative of the genome of rapeseed to locate their hypothetical order for association mapping. A total of 62 QTLs for salt tolerance, shoot biomass, and ion-homeostasis-related traits were identified by association mapping using both the P and Q+K models. Candidate genes located within the QTL regions were also shortlisted. Sequence analysis showed many polymorphisms for BnaaTSN1. Three of them in the coding region resulting in a premature stop codon or frameshift were found in most of the sensitive lines. Loss-of-function mutations showed a significant association with salt tolerance in B. napus.
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Affiliation(s)
- Hui-Yee Yong
- Graduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori Amamiyamachi, Aoba-ku, Sendai, Miyagi, 981-8555, Japan,
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28
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Kato S, Fujii K, Yumoto S, Ishimoto M, Shiraiwa T, Sayama T, Kikuchi A, Nishio T. Seed yield and its components of indeterminate and determinate lines in recombinant inbred lines of soybean. Breed Sci 2015; 65:154-60. [PMID: 26069445 PMCID: PMC4430510 DOI: 10.1270/jsbbs.65.154] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Accepted: 12/10/2014] [Indexed: 05/18/2023]
Abstract
The present study was conducted to evaluate the benefits of indeterminate growth habit in breeding to improve yield potential of Japanese soybean varieties, which exclusively have determinate growth habit. Two populations of recombinant inbred lines (RILs) derived from crosses between determinate Japanese cultivars and indeterminate US cultivars were grown in Akita and Kyoto, and seed weight per plant (SW) and its components were compared between indeterminate and determinate RILs. The difference of SW between the two growth habits in RILs varied depending on maturation time. The SW of early indeterminate lines was significantly higher than that of early determinate ones in Akita, but not in Kyoto. Among yield components, the number of seeds per pod was constantly larger in indeterminate lines than that in determinate ones irrespective of maturation time. The number of seeds per plant and the number of pods per plant of the indeterminate lines were greater than those of the determinate lines in early maturation in Akita. These results suggest that the indeterminate growth habit is an advantageous characteristic in breeding for high yield of early maturing soybean varieties in the Tohoku region.
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Affiliation(s)
- Shin Kato
- National Agriculture and Food Research Organization (NARO) Tohoku Agricultural Research Center,
Uenodai, Kariwano, Daisen, Akita 019-2112,
Japan
| | - Kenichiro Fujii
- National Institute of Agrobiological Sciences (NIAS),
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602,
Japan
| | - Setsuzo Yumoto
- NARO Institute of Crop Science,
2-1-18 Kannondai, Tsukuba, Ibaraki 305-8518,
Japan
| | - Masao Ishimoto
- National Institute of Agrobiological Sciences (NIAS),
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602,
Japan
| | - Tatsuhiko Shiraiwa
- Graduate School of Agriculture, Kyoto University,
Oiwake, Kitashirakawa, Sakyo, Kyoto 606-8502,
Japan
| | - Takashi Sayama
- National Institute of Agrobiological Sciences (NIAS),
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602,
Japan
| | - Akio Kikuchi
- National Agriculture and Food Research Organization (NARO) Tohoku Agricultural Research Center,
Uenodai, Kariwano, Daisen, Akita 019-2112,
Japan
| | - Takeshi Nishio
- Graduate School of Agricultural Science, Tohoku University,
1-1 Tsutsumidori-Amamiyamachi, Aoba, Sendai, Miyagi 981-8555,
Japan
- Corresponding author (e-mail: )
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29
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Mukudai S, Matsuda KI, Nishio T, Sugiyama Y, Bando H, Hirota R, Sakaguchi H, Hisa Y, Kawata M. Differential responses to steroid hormones in fibroblasts from the vocal fold, trachea, and esophagus. Endocrinology 2015; 156:1000-9. [PMID: 25514085 PMCID: PMC4330318 DOI: 10.1210/en.2014-1605] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
There is accumulating evidence that fibroblasts are target cells for steroids such as sex hormones and corticoids. The characteristics of fibroblasts vary among tissues and organs. Our aim in this study is to examine differences in responses to steroid hormones among fibroblasts from different cervicothoracic regions. We compared the actions of steroid hormones on cultured fibroblasts from the vocal folds, which are considered to be the primary target of steroid hormones, and the trachea and esophagus in adult male rats. Expression of steroid hormone receptors (androgen receptor, estrogen receptor α, and glucocorticoid receptor) was identified by immunofluorescence histochemistry. Androgen receptor was much more frequently expressed in fibroblasts from the vocal fold than in those from the trachea and esophagus. Cell proliferation analysis showed that administration of testosterone, estradiol, or corticosterone suppressed growth of all 3 types of fibroblasts. However, mRNA expression for extracellular matrix-associated genes, including procollagen I and III and elastin, and hyaluronic acid synthase I was elevated only by addition of testosterone to fibroblasts from the vocal fold. These results indicate that each steroid hormone exerts region-specific effects on cervicothoracic fibroblasts with different properties through binding to specific receptors.
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Affiliation(s)
- Shigeyuki Mukudai
- Departments of Anatomy and Neurobiology (S.M., K.I.M., M.K.) and Otolaryngology-Head and Neck Surgery (S.M., T.N., Y.S., H.B., R.H., H.S., Y.H.), Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
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Yamamoto M, Tantikanjana T, Nishio T, Nasrallah ME, Nasrallah JB. Site-specific N-glycosylation of the S-locus receptor kinase and its role in the self-incompatibility response of the brassicaceae. Plant Cell 2014; 26:4749-62. [PMID: 25480368 PMCID: PMC4311203 DOI: 10.1105/tpc.114.131987] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
The S-locus receptor kinase SRK is a highly polymorphic transmembrane kinase of the stigma epidermis. Through allele-specific interaction with its pollen coat-localized ligand, the S-locus cysteine-rich protein SCR, SRK is responsible for recognition and inhibition of self pollen in the self-incompatibility response of the Brassicaceae. The SRK extracellular ligand binding domain contains several potential N-glycosylation sites that exhibit varying degrees of conservation among SRK variants. However, the glycosylation status and functional importance of these sites are currently unclear. We investigated this issue in transgenic Arabidopsis thaliana stigmas that express the Arabidopsis lyrata SRKb variant and exhibit an incompatible response toward SCRb-expressing pollen. Analysis of single- and multiple-glycosylation site mutations of SRKb demonstrated that, although five of six potential N-glycosylation sites in SRKb are glycosylated in stigmas, N-glycosylation is not important for SCRb-dependent activation of SRKb. Rather, N-glycosylation functions primarily to ensure the proper and efficient subcellular trafficking of SRK to the plasma membrane. The study provides insight into the function of a receptor that regulates a critical phase of the plant life cycle and represents a valuable addition to the limited information available on the contribution of N-glycosylation to the subcellular trafficking and function of plant receptor kinases.
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Affiliation(s)
- Masaya Yamamoto
- Section of Plant Biology, School of Integrative Plant Science, Cornell University, Ithaca, New York 14850
| | - Titima Tantikanjana
- Section of Plant Biology, School of Integrative Plant Science, Cornell University, Ithaca, New York 14850
| | - Takeshi Nishio
- Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi 981-855, Japan
| | - Mikhail E Nasrallah
- Section of Plant Biology, School of Integrative Plant Science, Cornell University, Ithaca, New York 14850
| | - June B Nasrallah
- Section of Plant Biology, School of Integrative Plant Science, Cornell University, Ithaca, New York 14850
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31
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Hashimoto M, Nishio T, Haga A, Hanada T, Kabuki S, Kozuka T, Oguchi M. SU-E-CAMPUS-T-03: Four-Dimensional Dose Distribution Measurement Using Plastic Scintillator. Med Phys 2014. [DOI: 10.1118/1.4889004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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32
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Kitashiba H, Li F, Hirakawa H, Kawanabe T, Zou Z, Hasegawa Y, Tonosaki K, Shirasawa S, Fukushima A, Yokoi S, Takahata Y, Kakizaki T, Ishida M, Okamoto S, Sakamoto K, Shirasawa K, Tabata S, Nishio T. Draft sequences of the radish (Raphanus sativus L.) genome. DNA Res 2014; 21:481-90. [PMID: 24848699 PMCID: PMC4195494 DOI: 10.1093/dnares/dsu014] [Citation(s) in RCA: 136] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Radish (Raphanus sativus L., n = 9) is one of the major vegetables in Asia. Since the genomes of Brassica and related species including radish underwent genome rearrangement, it is quite difficult to perform functional analysis based on the reported genomic sequence of Brassica rapa. Therefore, we performed genome sequencing of radish. Short reads of genomic sequences of 191.1 Gb were obtained by next-generation sequencing (NGS) for a radish inbred line, and 76,592 scaffolds of ≥300 bp were constructed along with the bacterial artificial chromosome-end sequences. Finally, the whole draft genomic sequence of 402 Mb spanning 75.9% of the estimated genomic size and containing 61,572 predicted genes was obtained. Subsequently, 221 single nucleotide polymorphism markers and 768 PCR-RFLP markers were used together with the 746 markers produced in our previous study for the construction of a linkage map. The map was combined further with another radish linkage map constructed mainly with expressed sequence tag-simple sequence repeat markers into a high-density integrated map of 1,166 cM with 2,553 DNA markers. A total of 1,345 scaffolds were assigned to the linkage map, spanning 116.0 Mb. Bulked PCR products amplified by 2,880 primer pairs were sequenced by NGS, and SNPs in eight inbred lines were identified.
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Affiliation(s)
- Hiroyasu Kitashiba
- Graduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amamiyamachi, Aoba-ku, Sendai, Miyagi 981-8555, Japan
| | - Feng Li
- Graduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amamiyamachi, Aoba-ku, Sendai, Miyagi 981-8555, Japan
| | - Hideki Hirakawa
- Kazusa DNA Research Institute, 2-6-7 Kazusa-Kamatari, Kisarazu, Chiba 292-0818, Japan
| | - Takahiro Kawanabe
- Graduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amamiyamachi, Aoba-ku, Sendai, Miyagi 981-8555, Japan
| | - Zhongwei Zou
- Graduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amamiyamachi, Aoba-ku, Sendai, Miyagi 981-8555, Japan
| | - Yoichi Hasegawa
- Graduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amamiyamachi, Aoba-ku, Sendai, Miyagi 981-8555, Japan
| | - Kaoru Tonosaki
- Graduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amamiyamachi, Aoba-ku, Sendai, Miyagi 981-8555, Japan
| | - Sachiko Shirasawa
- Graduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amamiyamachi, Aoba-ku, Sendai, Miyagi 981-8555, Japan
| | - Aki Fukushima
- Graduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amamiyamachi, Aoba-ku, Sendai, Miyagi 981-8555, Japan
| | - Shuji Yokoi
- Faculty of Agriculture, Iwate University, 3-18-8 Ueda, Morioka, Iwate 020-8550, Japan
| | - Yoshihito Takahata
- Faculty of Agriculture, Iwate University, 3-18-8 Ueda, Morioka, Iwate 020-8550, Japan
| | - Tomohiro Kakizaki
- National Institute of Vegetable and Tea Science, 360, Kusawa, Ano, Tsu, Mie 514-2392, Japan
| | - Masahiko Ishida
- National Institute of Vegetable and Tea Science, 360, Kusawa, Ano, Tsu, Mie 514-2392, Japan
| | - Shunsuke Okamoto
- Plant Breeding Experimental Station, Takii Seed Co. Ltd, Kohsei, Kohka-gun, Shiga 520-20, Japan
| | - Koji Sakamoto
- Plant Breeding Experimental Station, Takii Seed Co. Ltd, Kohsei, Kohka-gun, Shiga 520-20, Japan
| | - Kenta Shirasawa
- Kazusa DNA Research Institute, 2-6-7 Kazusa-Kamatari, Kisarazu, Chiba 292-0818, Japan
| | - Satoshi Tabata
- Kazusa DNA Research Institute, 2-6-7 Kazusa-Kamatari, Kisarazu, Chiba 292-0818, Japan
| | - Takeshi Nishio
- Graduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amamiyamachi, Aoba-ku, Sendai, Miyagi 981-8555, Japan
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Zhang X, Lu G, Long W, Zou X, Li F, Nishio T. Recent progress in drought and salt tolerance studies in Brassica crops. Breed Sci 2014; 64:60-73. [PMID: 24987291 PMCID: PMC4031111 DOI: 10.1270/jsbbs.64.60] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2013] [Accepted: 03/19/2014] [Indexed: 05/19/2023]
Abstract
Water deficit imposed by either drought or salinity brings about severe growth retardation and yield loss of crops. Since Brassica crops are important contributors to total oilseed production, it is urgently needed to develop tolerant cultivars to ensure yields under such adverse conditions. There are various physiochemical mechanisms for dealing with drought and salinity in plants at different developmental stages. Accordingly, different indicators of tolerance to drought or salinity at the germination, seedling, flowering and mature stages have been developed and used for germplasm screening and selection in breeding practices. Classical genetic and modern genomic approaches coupled with precise phenotyping have boosted the unravelling of genes and metabolic pathways conferring drought or salt tolerance in crops. QTL mapping of drought and salt tolerance has provided several dozen target QTLs in Brassica and the closely related Arabidopsis. Many drought- or salt-tolerant genes have also been isolated, some of which have been confirmed to have great potential for genetic improvement of plant tolerance. It has been suggested that molecular breeding approaches, such as marker-assisted selection and gene transformation, that will enhance oil product security under a changing climate be integrated in the development of drought- and salt-tolerant Brassica crops.
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Affiliation(s)
- Xuekun Zhang
- Key Laboratory of Oil Crops Biology and Genetic Improvement, Ministry of Agriculture, Oil Crops Research Institute,
CAAS, Wuhan 430062,
China
| | - Guangyuan Lu
- Key Laboratory of Oil Crops Biology and Genetic Improvement, Ministry of Agriculture, Oil Crops Research Institute,
CAAS, Wuhan 430062,
China
| | - Weihua Long
- Key Laboratory of Oil Crops Biology and Genetic Improvement, Ministry of Agriculture, Oil Crops Research Institute,
CAAS, Wuhan 430062,
China
- Institute of Industrial Crops, Jiangsu Academy of Agricultural Sciences,
Nanjing 210014,
China
| | - Xiling Zou
- Key Laboratory of Oil Crops Biology and Genetic Improvement, Ministry of Agriculture, Oil Crops Research Institute,
CAAS, Wuhan 430062,
China
| | - Feng Li
- Key Laboratory of Oil Crops Biology and Genetic Improvement, Ministry of Agriculture, Oil Crops Research Institute,
CAAS, Wuhan 430062,
China
| | - Takeshi Nishio
- Graduate School of Agricultural Science, Tohoku University,
Sendai, Miyagi 981-8555,
Japan
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34
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Nishio T. Genomics and breeding of Brassicaceae crops. Breed Sci 2014; 64:1. [PMID: 24987285 PMCID: PMC4031104 DOI: 10.1270/jsbbs.64.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
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Goto H, Asanome N, Suzuki K, Sano T, Saito H, Abe Y, Chuba M, Nishio T. Objective evaluation of whiteness of cooked rice and rice cakes using a portable spectrophotometer. Breed Sci 2014; 63:489-94. [PMID: 24757389 PMCID: PMC3949586 DOI: 10.1270/jsbbs.63.489] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2013] [Accepted: 11/03/2013] [Indexed: 05/07/2023]
Abstract
The whiteness of cooked rice and rice cakes was evaluated using a portable spectrophotometer with a whiteness index (WI). Also, by using boiled rice for measurement of Mido values by Mido Meter, it was possible to infer the whiteness of cooked rice without rice cooking. In the analysis of varietal differences of cooked rice, 'Tsuyahime', 'Koshihikari' and 'Koshinokaori' showed high whiteness, while 'Satonoyuki' had inferior whiteness. The whiteness of rice cakes made from 'Koyukimochi' and 'Dewanomochi' was higher than the whiteness of those made from 'Himenomochi' and 'Koganemochi'. While there was a significant correlation (r = 0.84) between WI values and whiteness scores of cooked rice by the sensory test, no correlation was detected between the whiteness scores and Mido values, indicating that the values obtained by a spectrophotometer differ from those obtained by a Mido Meter. Thus, a spectrophotometer may be a novel device for measurement of rice eating quality.
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Affiliation(s)
- Hajime Goto
- Rice Breeding and Crop Science Experiment Station, Yamagata Integrated Agricultural Research Center,
25 Yamanomae, Fujishima, Tsuruoka, Yamagata 999-7601,
Japan
- Graduate School of Agricultural Science, Tohoku University,
1-1 Tsutsumidori-Amamiya, Aoba, Sendai, Miyagi 981-8555,
Japan
| | - Noriyuki Asanome
- Yamagata Integrated Agricultural Research Center,
6060-27 Minorigaoka, Yamagata, Yamagata 990-2372,
Japan
| | - Keitaro Suzuki
- National Institute of Crop Science,
2-1-18 Kannondai, Tsukuba, Ibaraki 305-8518,
Japan
| | - Tomoyoshi Sano
- Shonai Area General Branch Administration, Yamagata Prefectural Government,
51 Yamanomae, Fujishima, Tsuruoka, Yamagata 999-7601,
Japan
| | - Hiroshi Saito
- Rice Breeding and Crop Science Experiment Station, Yamagata Integrated Agricultural Research Center,
25 Yamanomae, Fujishima, Tsuruoka, Yamagata 999-7601,
Japan
| | - Yohei Abe
- Rice Breeding and Crop Science Experiment Station, Yamagata Integrated Agricultural Research Center,
25 Yamanomae, Fujishima, Tsuruoka, Yamagata 999-7601,
Japan
| | - Masaru Chuba
- Rice Breeding and Crop Science Experiment Station, Yamagata Integrated Agricultural Research Center,
25 Yamanomae, Fujishima, Tsuruoka, Yamagata 999-7601,
Japan
| | - Takeshi Nishio
- Graduate School of Agricultural Science, Tohoku University,
1-1 Tsutsumidori-Amamiya, Aoba, Sendai, Miyagi 981-8555,
Japan
- Corresponding author (e-mail: )
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Yamamoto G, Taura K, Koyama Y, Tanabe K, Nishio T, Hatano E, Uemoto S. Pancreatic Stellate Cells Do Not Have Vitamin A In Fat Droplets. J Surg Res 2014. [DOI: 10.1016/j.jss.2013.11.874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Nishio T, Hatano E, Okuno M, Kasai Y, Seo S, Taura K, Yasuchika K, Mori A, Kaido T, Uemoto S. Clinical Characteristics of Patients with Non-B Non-C Hepatocellular Carcinoma Undergoing Hepatic Resection. J Surg Res 2014. [DOI: 10.1016/j.jss.2013.11.643] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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38
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Tanabe K, Taura K, Koyama Y, Yamamoto G, Nishio T, Hatano E, Uemoto S. Migration of Splenic Lymphocytes Promotes Fibrotic Response in the Liver through Modification of T Helper Cytokine Balance. J Surg Res 2014. [DOI: 10.1016/j.jss.2013.11.448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Taura K, Koyama Y, Tanabe K, Yamamoto G, Nishio T, Hatano E, Uemoto S. Liver Stiffness Measurement Predicts Posthepatectomy Liver Failure. J Surg Res 2014. [DOI: 10.1016/j.jss.2013.11.587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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40
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Nishio T, Shirato H, Ishikawa M, Miyabe Y, Kito S, Narita Y, Onimaru R, Ishikura S, Ito Y, Hiraoka M. EP-1449: Development of a water tank-type lung phantom for dose verification and credentialing of lung SBRT clinical trial. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)31567-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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41
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Kurokawa C, Urushiyama A, Nishio T. PO-0797: Characteristics of tissue-equivalent thermoluminescence and photo-stimulated luminescence sheets. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)30915-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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42
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Yamamoto M, Nishio T. Commonalities and differences between Brassica and Arabidopsis self-incompatibility. Hortic Res 2014; 1:14054. [PMID: 26504553 PMCID: PMC4596330 DOI: 10.1038/hortres.2014.54] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Revised: 09/12/2014] [Accepted: 09/12/2014] [Indexed: 05/12/2023]
Abstract
In higher plants, the self-incompatibility mechanism is important for inhibition of self-fertilization and facilitation of out-crossing. In Brassicaceae, the self-incompatibility response is mediated by allele-specific interaction of the stigma-localized S-locus receptor kinase (SRK) with the pollen coat-localized ligand (SCR/SP11). All self-incompatible Brassicaceae plants analyzed have been found to have the SRK and SCR/SP11 genes in the S-locus region. Although Arabidopsis thaliana is self-compatible, transformation with functional SRK-SCR genes from self-incompatible Arabidopsis species confers the self-incompatibility phenotype to A. thaliana. The allele-specific interaction between SRK and SCR activates the downstream signaling cascade of self-incompatibility. Yeast two-hybrid analysis with a kinase domain of SRK as bait and genetic analysis suggested several candidate components of self-incompatibility signaling in Brassica. Recently, A. thaliana genes orthologous to the identified genes for Brassica self-incompatibility signaling were evaluated by using a self-incompatible transgenic A. thaliana plant and these orthologous genes were found not to be involved in self-incompatibility signaling in the transgenic A. thaliana. In this review, we describe common and different aspects of S-locus genomic regions and self-incompatibility signaling between Brassica and Arabidopsis.
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Affiliation(s)
- Masaya Yamamoto
- Graduate School of Agricultural Science, Tohoku University, Sendai 981-8555, Japan
| | - Takeshi Nishio
- Graduate School of Agricultural Science, Tohoku University, Sendai 981-8555, Japan
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Bahrami A, Ardiyanti A, Tonosaki K, Suzuki K, Tanida N, Hirayama T, Roh SG, Nishio T, Katoh K. Haplotype C ofgrowth hormone(GH) gene in Japanese Black cattle: Structure of GH protein and a novel method for detection of the gene. Anim Sci J 2013; 84:802-4. [DOI: 10.1111/asj.12132] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2013] [Accepted: 07/31/2013] [Indexed: 11/29/2022]
Affiliation(s)
- Abolfazl Bahrami
- Department of Animal Science; University of Tehran; Tehran Islamic Republic of Iran
| | - Astrid Ardiyanti
- Department of Animal Physiology; Graduate School of Agricultural Science; Tohoku University; Sendai Japan
| | - Kaoru Tonosaki
- Department of Plant Breeding and Genetics; Graduate School of Agricultural Science; Tohoku University; Sendai Japan
| | - Keiichi Suzuki
- Department of Animal Breeding and Genetics; Graduate School of Agricultural Science; Tohoku University; Sendai Japan
| | - Nanako Tanida
- Department of Animal Physiology; Graduate School of Agricultural Science; Tohoku University; Sendai Japan
| | - Takuji Hirayama
- Faculty of Agriculture; University of Ryukyus; Nishihara Japan
| | - Sang-Gun Roh
- Department of Animal Physiology; Graduate School of Agricultural Science; Tohoku University; Sendai Japan
| | - Takeshi Nishio
- Department of Plant Breeding and Genetics; Graduate School of Agricultural Science; Tohoku University; Sendai Japan
| | - Kazuo Katoh
- Department of Animal Physiology; Graduate School of Agricultural Science; Tohoku University; Sendai Japan
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Iihara N, Nishio T, Okura M, Anzai H, Kagawa M, Houchi H, Kirino Y. Comparing patient dissatisfaction and rational judgment in intentional medication non-adherence versus unintentional non-adherence. J Clin Pharm Ther 2013; 39:45-52. [PMID: 24106917 DOI: 10.1111/jcpt.12100] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2013] [Accepted: 09/02/2013] [Indexed: 11/30/2022]
Abstract
WHAT IS KNOWN AND OBJECTIVE Patients' poor adherence to medications is reported to be related to the individual patients' beliefs and cognitions and their trust of the medical staff. However, the causes of the two forms of non-adherence, intentional and unintentional behaviours, have yet to be clarified. This study compared psychological latent factors associated with intentional and unintentional non-adherence to chronic medication regimens, focusing on the potential effects of (i) patients' dissatisfaction with treatment and their relationships with the medical staff and (ii) patients' subliminal rational thinking processes, which weighed the positive values such as their expectations of benefits from treatment against negative values such as their dissatisfaction. METHODS Two cross-sectional surveys were undertaken of patients given medications for chronic diseases, using a questionnaire developed and validated in this study. One survey was undertaken in three hospitals and the other survey, online throughout Japan. We scored the individual latent factors using the questionnaire and calculated the differential score between two negatively correlated latent factors to quantify patients' subliminal rational thinking process. We compared the adjusted odds ratio (OR) of latent factors between intentional and unintentional non-adherence to medication in both surveys. RESULTS AND DISCUSSION Of the eligible subjects, 149 hospitalized patients and 524 survey participants completed the questionnaire. Intentional non-adherence was associated with patient dissatisfaction with treatment including interpersonal relationships with medical staff in both hospitalized patients and online survey participants (95% confidence interval of adjusted OR for Dissatisfaction, 1·20-16·26 in the hospital-based survey and 1·33-3·45 in the online survey). In both surveys, intentional non-adherence was significantly associated with the differential score between two negatively correlated latent factors, Willingness and Dissatisfaction (P = 0·02 in the hospital-based survey and P < 0·001 in the online survey). However, these associations were not evident in unintentionally non-adherent patients. WHAT IS NEW AND CONCLUSIONS Patients' dissatisfaction and their resulting rational judgments are unique, consistent determinants of intentional non-adherence to medications, but not of unintentional non-adherence.
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Affiliation(s)
- N Iihara
- Kagawa School of Pharmaceutical Sciences, Tokushima Bunri University, Sanuki, Japan
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Egashira Y, Nishio T, Hotta K, Kohno R, Uesaka M. Application of the pencil-beam redefinition algorithm in heterogeneous media for proton beam therapy. Phys Med Biol 2013; 58:1169-84. [PMID: 23370731 DOI: 10.1088/0031-9155/58/4/1169] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
In proton beam therapy, changes in the proton range due to lateral heterogeneity may cause serious errors in the dose distribution. In the present study, the pencilbeam redefinition algorithm (PBRA) was applied to proton beam therapy to address the problem of lateral density heterogeneity. In the calculation, the phase-space parameters were characterized for multiple range (i.e. proton energy) bins for given pencil beams. The particles that were included in each pencil beam were transported and redefined periodically until they had stopped. The redefined beams formed a detouring path that was different from that of the non-redefined pencil beams, and the path of each redefined beam was straight. The results calculated by the PBRA were compared with measured proton dose distributions in a heterogeneous slab phantom and an anthropomorphic phantom. Through the beam redefinition process, the PBRA was able to predict the measured proton-detouring effects. Therefore, the PBRA may allow improved calculation accuracy when dealing with lateral heterogeneities in proton therapy applications.
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Affiliation(s)
- Y Egashira
- Department of Bioengineering, Graduate School of Engineering, University of Tokyo, 2-11-16, Yayoi, Bunkyo-ku, Tokyo 113-8656, Japan.
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Yamane T, Ikari Y, Nishio T, Ishii K, Ishii K, Kato T, Ito K, Silverman DHS, Senda M, Asada T, Arai H, Sugishita M, Iwatsubo T. Visual-statistical interpretation of (18)F-FDG-PET images for characteristic Alzheimer patterns in a multicenter study: inter-rater concordance and relationship to automated quantitative evaluation. AJNR Am J Neuroradiol 2013; 35:244-9. [PMID: 23907243 DOI: 10.3174/ajnr.a3665] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE The role of (18)F-FDG-PET in the diagnosis of Alzheimer disease is increasing and should be validated. The aim of this study was to assess the inter-rater variability in the interpretation of (18)F-FDG-PET images obtained in the Japanese Alzheimer's Disease Neuroimaging Initiative, a multicenter clinical research project. MATERIALS AND METHODS This study analyzed 274 (18)F-FDG-PET scans (67 mild Alzheimer disease, 100 mild cognitive impairment, and 107 normal cognitive) as baseline scans for the Japanese Alzheimer's Disease Neuroimaging Initiative, which were acquired with various types of PET or PET/CT scanners in 23 facilities. Three independent raters interpreted all PET images by using a combined visual-statistical method. The images were classified into 7 (FDG-7) patterns by the criteria of Silverman et al and further into 2 (FDG-2) patterns. RESULTS Agreement among the 7 visual-statistical categories by at least 2 of the 3 readers occurred in >94% of cases for all groups: Alzheimer disease, mild cognitive impairment, and normal cognitive. Perfect matches by all 3 raters were observed for 62% of the cases by FDG-7 and 76 by FDG-2. Inter-rater concordance was moderate by FDG-7 (κ = 0.57) and substantial in FDG-2 (κ = 0.67) on average. The FDG-PET score, an automated quantitative index developed by Herholz et al, increased as the number of raters who voted for the AD pattern increased (ρ = 0.59, P < .0001), and the FDG-PET score decreased as those for normal pattern increased (ρ = -0.64, P < .0001). CONCLUSIONS Inter-rater agreement was moderate to substantial for the combined visual-statistical interpretation of (18)F-FDG-PET and was also significantly associated with automated quantitative assessment.
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Affiliation(s)
- T Yamane
- From the Division of Molecular Imaging (T.Y., Y.I., T.N., M. Senda), Institute of Biomedical Research and Innovation, Kobe, Japan
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Abstract
Abstract
We developed a method to determine the characteristics of a press machine required for the injection-press molding process. In this paper, a model based on a serial spring connecting two different springs was used. One was spring represented apparent machine rigidity and the other the resistance to compression of the resin. Using this model, we calculated the flow between parallel plates and flow behavior in a “tray” mold.
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Affiliation(s)
- M. Tsutsubuchi
- Plastics Technical Center, Sumitomo Chemical, Plastics Technical Center, Chiba, Japan
| | - T. Kitayama
- Plastics Technical Center, Sumitomo Chemical, Plastics Technical Center, Chiba, Japan
| | - Y. Togawa
- Plastics Technical Center, Sumitomo Chemical, Plastics Technical Center, Chiba, Japan
| | - T. Nishio
- Plastics Technical Center, Sumitomo Chemical, Plastics Technical Center, Chiba, Japan
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Kurokawa C, Urushiyama A, Nishio T, Sugimoto S. SU-E-T-119: Characteristics of TLD and PSLD Films for Photon and Electron Dose Measurements. Med Phys 2013. [DOI: 10.1118/1.4814554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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49
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Ishikawa M, Kojima H, Tachibana H, Tanabe S, Suzuki R, Minemura T, Tohyama N, Narita Y, Nishio T, Ishikura S. SU-E-T-184: Practical Method of Scanner Stability Compensation for Film Dosimetry. Med Phys 2013. [DOI: 10.1118/1.4814619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Li F, Zou Z, Yong HY, Kitashiba H, Nishio T. Nucleotide sequence variation of GLABRA1 contributing to phenotypic variation of leaf hairiness in Brassicaceae vegetables. Theor Appl Genet 2013; 126:1227-36. [PMID: 23370467 DOI: 10.1007/s00122-013-2049-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2012] [Accepted: 01/11/2013] [Indexed: 05/18/2023]
Abstract
GLABRA1 (GL1) belongs to the group of R2R3-MYB transcription factors and is known to be essential for trichome initiation in Arabidopsis. In our previous study, we identified a GL1 ortholog in Brassica rapa as a candidate for the gene controlling leaf hairiness by QTL analysis and suggested that a 5-bp deletion (B-allele) and a 2-bp deletion (D-allele) in the exon 3 of BrGL1 and a non-synonymous SNP (C-allele) in the second nucleotide of exon 3 possibly cause leaf hairlessness. In this study, we transformed a B. rapa line having the B-allele with the A-allele (wild type) or the C-allele of BrGL1 under the control of the CaMV 35S promoter. The transgenic plants with the A-allele showed dense coverage of seedling tissues including stems, young leaves and hypocotyls with trichomes, whereas the phenotypes of those with the C-allele were unchanged. In order to obtain more information about allelic variation of GL1 in different plant lineages and its correlation with leaf hairiness, two GL1 homologs, i.e., RsGL1a and RsGL1b, in Raphanus sativus were analyzed. Allelic variation of RsGL1a between a hairless line and a hairy line was completely associated with hairiness in their BC1F1 population. Comparison of the full-length of RsGL1a in the hairless and hairy lines showed great variation of nucleotides in the 3' end, which might be essential for its function and expression.
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Affiliation(s)
- Feng Li
- Laboratory of Plant Breeding and Genetics, Graduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amamiyamachi, Sendai, Miyagi, 981-8555, Japan
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