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Association Mapping for Epistasis and Environmental Interaction of Yield Traits in 323 Cotton Cultivars under 9 Different Environments

Improving yield is a major objective for cotton breeding schemes, and lint yield and its three component traits (boll number, boll weight and lint percentage) are complex traits controlled by multiple genes and various environments. Association mapping was performed to detect markers associated with...

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Autores principales: Jia, Yinhua, Sun, Xiwei, Sun, Junling, Pan, Zhaoe, Wang, Xiwen, He, Shoupu, Xiao, Songhua, Shi, Weijun, Zhou, Zhongli, Pang, Baoyin, Wang, Liru, Liu, Jianguang, Ma, Jun, Du, Xiongming, Zhu, Jun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4014473/
https://www.ncbi.nlm.nih.gov/pubmed/24810754
http://dx.doi.org/10.1371/journal.pone.0095882
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author Jia, Yinhua
Sun, Xiwei
Sun, Junling
Pan, Zhaoe
Wang, Xiwen
He, Shoupu
Xiao, Songhua
Shi, Weijun
Zhou, Zhongli
Pang, Baoyin
Wang, Liru
Liu, Jianguang
Ma, Jun
Du, Xiongming
Zhu, Jun
author_facet Jia, Yinhua
Sun, Xiwei
Sun, Junling
Pan, Zhaoe
Wang, Xiwen
He, Shoupu
Xiao, Songhua
Shi, Weijun
Zhou, Zhongli
Pang, Baoyin
Wang, Liru
Liu, Jianguang
Ma, Jun
Du, Xiongming
Zhu, Jun
author_sort Jia, Yinhua
collection PubMed
description Improving yield is a major objective for cotton breeding schemes, and lint yield and its three component traits (boll number, boll weight and lint percentage) are complex traits controlled by multiple genes and various environments. Association mapping was performed to detect markers associated with these four traits using 651 simple sequence repeats (SSRs). A mixed linear model including epistasis and environmental interaction was used to screen the loci associated with these four yield traits by 323 accessions of Gossypium hirsutum L. evaluated in nine different environments. 251 significant loci were detected to be associated with lint yield and its three components, including 69 loci with individual effects and all involved in epistasis interactions. These significant loci explain ∼ 62.05% of the phenotypic variance (ranging from 49.06% ∼ 72.29% for these four traits). It was indicated by high contribution of environmental interaction to the phenotypic variance for lint yield and boll numbers, that genetic effects of SSR loci were susceptible to environment factors. Shared loci were also observed among these four traits, which may be used for simultaneous improvement in cotton breeding for yield traits. Furthermore, consistent and elite loci were screened with −Log(10) (P-value) >8.0 based on predicted effects of loci detected in different environments. There was one locus and 6 pairs of epistasis for lint yield, 4 loci and 10 epistasis for boll number, 15 loci and 2 epistasis for boll weight, and 2 loci and 5 epistasis for lint percentage, respectively. These results provided insights into the genetic basis of lint yield and its components and may be useful for marker-assisted breeding to improve cotton production.
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spelling pubmed-40144732014-05-14 Association Mapping for Epistasis and Environmental Interaction of Yield Traits in 323 Cotton Cultivars under 9 Different Environments Jia, Yinhua Sun, Xiwei Sun, Junling Pan, Zhaoe Wang, Xiwen He, Shoupu Xiao, Songhua Shi, Weijun Zhou, Zhongli Pang, Baoyin Wang, Liru Liu, Jianguang Ma, Jun Du, Xiongming Zhu, Jun PLoS One Research Article Improving yield is a major objective for cotton breeding schemes, and lint yield and its three component traits (boll number, boll weight and lint percentage) are complex traits controlled by multiple genes and various environments. Association mapping was performed to detect markers associated with these four traits using 651 simple sequence repeats (SSRs). A mixed linear model including epistasis and environmental interaction was used to screen the loci associated with these four yield traits by 323 accessions of Gossypium hirsutum L. evaluated in nine different environments. 251 significant loci were detected to be associated with lint yield and its three components, including 69 loci with individual effects and all involved in epistasis interactions. These significant loci explain ∼ 62.05% of the phenotypic variance (ranging from 49.06% ∼ 72.29% for these four traits). It was indicated by high contribution of environmental interaction to the phenotypic variance for lint yield and boll numbers, that genetic effects of SSR loci were susceptible to environment factors. Shared loci were also observed among these four traits, which may be used for simultaneous improvement in cotton breeding for yield traits. Furthermore, consistent and elite loci were screened with −Log(10) (P-value) >8.0 based on predicted effects of loci detected in different environments. There was one locus and 6 pairs of epistasis for lint yield, 4 loci and 10 epistasis for boll number, 15 loci and 2 epistasis for boll weight, and 2 loci and 5 epistasis for lint percentage, respectively. These results provided insights into the genetic basis of lint yield and its components and may be useful for marker-assisted breeding to improve cotton production. Public Library of Science 2014-05-08 /pmc/articles/PMC4014473/ /pubmed/24810754 http://dx.doi.org/10.1371/journal.pone.0095882 Text en © 2014 Jia 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
Jia, Yinhua
Sun, Xiwei
Sun, Junling
Pan, Zhaoe
Wang, Xiwen
He, Shoupu
Xiao, Songhua
Shi, Weijun
Zhou, Zhongli
Pang, Baoyin
Wang, Liru
Liu, Jianguang
Ma, Jun
Du, Xiongming
Zhu, Jun
Association Mapping for Epistasis and Environmental Interaction of Yield Traits in 323 Cotton Cultivars under 9 Different Environments
title Association Mapping for Epistasis and Environmental Interaction of Yield Traits in 323 Cotton Cultivars under 9 Different Environments
title_full Association Mapping for Epistasis and Environmental Interaction of Yield Traits in 323 Cotton Cultivars under 9 Different Environments
title_fullStr Association Mapping for Epistasis and Environmental Interaction of Yield Traits in 323 Cotton Cultivars under 9 Different Environments
title_full_unstemmed Association Mapping for Epistasis and Environmental Interaction of Yield Traits in 323 Cotton Cultivars under 9 Different Environments
title_short Association Mapping for Epistasis and Environmental Interaction of Yield Traits in 323 Cotton Cultivars under 9 Different Environments
title_sort association mapping for epistasis and environmental interaction of yield traits in 323 cotton cultivars under 9 different environments
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4014473/
https://www.ncbi.nlm.nih.gov/pubmed/24810754
http://dx.doi.org/10.1371/journal.pone.0095882
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