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Association and Validation of Yield-Favored Alleles in Chinese Cultivars of Common Wheat (Triticumaestivum L.)
Common wheat is one of the most important crops in China, which is the largest producer in the world. A set of 230 cultivars was used to identify yield-related loci by association mapping. This set was tested for seven yield-related traits, viz. plant height (PH), spike length (SL), spikelet number...
Autores principales: | , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4466017/ https://www.ncbi.nlm.nih.gov/pubmed/26067129 http://dx.doi.org/10.1371/journal.pone.0130029 |
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author | Guo, Jie Hao, Chenyang Zhang, Yong Zhang, Boqiao Cheng, Xiaoming Qin, Lin Li, Tian Shi, Weiping Chang, Xiaoping Jing, Ruilian Yang, Wuyun Hu, Wenjing Zhang, Xueyong Cheng, Shunhe |
author_facet | Guo, Jie Hao, Chenyang Zhang, Yong Zhang, Boqiao Cheng, Xiaoming Qin, Lin Li, Tian Shi, Weiping Chang, Xiaoping Jing, Ruilian Yang, Wuyun Hu, Wenjing Zhang, Xueyong Cheng, Shunhe |
author_sort | Guo, Jie |
collection | PubMed |
description | Common wheat is one of the most important crops in China, which is the largest producer in the world. A set of 230 cultivars was used to identify yield-related loci by association mapping. This set was tested for seven yield-related traits, viz. plant height (PH), spike length (SL), spikelet number per spike (SNPS), kernel number per spike (KNPS), thousand-kernel weight (TKW), kernel weight per spike (KWPS), and sterile spikelet number (SSN) per plant in four environments. A total of 106 simple sequence repeat (SSR) markers distributed on all 21 chromosomes were used to screen the set. Twenty-one and 19 of them were associated with KNPS and TKW, respectively. Association mapping detected 73 significant associations across 50 SSRs, and the phenotypic variation explained (R(2)) by the associations ranged from 1.54 to 23.93%. The associated loci were distributed on all chromosomes except 4A, 7A, and 7D. Significant and potentially new alleles were present on 8 chromosomes, namely1A, 1D, 2A, 2D, 3D, 4B, 5B, and 6B. Further analysis showed that genetic effects of associated loci were greatly influenced by association panels, and the R(2) of crucial loci were lower in modern cultivars than in the mini core collection, probably caused by strong selection in wheat breeding. In order to confirm the results of association analysis, yield-related favorable alleles Xgwm135-1A(138), Xgwm337-1D(186), Xgwm102-2D(144), and Xgwm132-6B(128) were evaluated in a double haploid (DH) population derived from Hanxuan10 xLumai14.These favorable alleles that were validated in various populations might be valuable in breeding for high-yield. |
format | Online Article Text |
id | pubmed-4466017 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-44660172015-06-25 Association and Validation of Yield-Favored Alleles in Chinese Cultivars of Common Wheat (Triticumaestivum L.) Guo, Jie Hao, Chenyang Zhang, Yong Zhang, Boqiao Cheng, Xiaoming Qin, Lin Li, Tian Shi, Weiping Chang, Xiaoping Jing, Ruilian Yang, Wuyun Hu, Wenjing Zhang, Xueyong Cheng, Shunhe PLoS One Research Article Common wheat is one of the most important crops in China, which is the largest producer in the world. A set of 230 cultivars was used to identify yield-related loci by association mapping. This set was tested for seven yield-related traits, viz. plant height (PH), spike length (SL), spikelet number per spike (SNPS), kernel number per spike (KNPS), thousand-kernel weight (TKW), kernel weight per spike (KWPS), and sterile spikelet number (SSN) per plant in four environments. A total of 106 simple sequence repeat (SSR) markers distributed on all 21 chromosomes were used to screen the set. Twenty-one and 19 of them were associated with KNPS and TKW, respectively. Association mapping detected 73 significant associations across 50 SSRs, and the phenotypic variation explained (R(2)) by the associations ranged from 1.54 to 23.93%. The associated loci were distributed on all chromosomes except 4A, 7A, and 7D. Significant and potentially new alleles were present on 8 chromosomes, namely1A, 1D, 2A, 2D, 3D, 4B, 5B, and 6B. Further analysis showed that genetic effects of associated loci were greatly influenced by association panels, and the R(2) of crucial loci were lower in modern cultivars than in the mini core collection, probably caused by strong selection in wheat breeding. In order to confirm the results of association analysis, yield-related favorable alleles Xgwm135-1A(138), Xgwm337-1D(186), Xgwm102-2D(144), and Xgwm132-6B(128) were evaluated in a double haploid (DH) population derived from Hanxuan10 xLumai14.These favorable alleles that were validated in various populations might be valuable in breeding for high-yield. Public Library of Science 2015-06-11 /pmc/articles/PMC4466017/ /pubmed/26067129 http://dx.doi.org/10.1371/journal.pone.0130029 Text en © 2015 Guo et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited. |
spellingShingle | Research Article Guo, Jie Hao, Chenyang Zhang, Yong Zhang, Boqiao Cheng, Xiaoming Qin, Lin Li, Tian Shi, Weiping Chang, Xiaoping Jing, Ruilian Yang, Wuyun Hu, Wenjing Zhang, Xueyong Cheng, Shunhe Association and Validation of Yield-Favored Alleles in Chinese Cultivars of Common Wheat (Triticumaestivum L.) |
title | Association and Validation of Yield-Favored Alleles in Chinese Cultivars of Common Wheat (Triticumaestivum L.) |
title_full | Association and Validation of Yield-Favored Alleles in Chinese Cultivars of Common Wheat (Triticumaestivum L.) |
title_fullStr | Association and Validation of Yield-Favored Alleles in Chinese Cultivars of Common Wheat (Triticumaestivum L.) |
title_full_unstemmed | Association and Validation of Yield-Favored Alleles in Chinese Cultivars of Common Wheat (Triticumaestivum L.) |
title_short | Association and Validation of Yield-Favored Alleles in Chinese Cultivars of Common Wheat (Triticumaestivum L.) |
title_sort | association and validation of yield-favored alleles in chinese cultivars of common wheat (triticumaestivum l.) |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4466017/ https://www.ncbi.nlm.nih.gov/pubmed/26067129 http://dx.doi.org/10.1371/journal.pone.0130029 |
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