Analysis of QTLs on heading date based on single segment substitution lines in rice (Oryza Sativa L.)

Single segment substitution lines (SSSLs) have been confirmed to be powerful tools to perform quantitative trait locus (QTL) analysis. This study illuminated the process and methods of QTL analysis with SSSLs on heading date (HD) in rice. QTL identification under two cropping seasons revealed 98 of...

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Autores principales: Zhu, Haitao, Li, Yun, Liang, Jiayan, Luan, Xin, Xu, Pan, Wang, Shaokui, Zhang, Guiquan, Liu, Guifu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
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Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6125461/
https://www.ncbi.nlm.nih.gov/pubmed/30185925
http://dx.doi.org/10.1038/s41598-018-31377-7
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author Zhu, Haitao
Li, Yun
Liang, Jiayan
Luan, Xin
Xu, Pan
Wang, Shaokui
Zhang, Guiquan
Liu, Guifu
author_facet Zhu, Haitao
Li, Yun
Liang, Jiayan
Luan, Xin
Xu, Pan
Wang, Shaokui
Zhang, Guiquan
Liu, Guifu
author_sort Zhu, Haitao
collection PubMed
description Single segment substitution lines (SSSLs) have been confirmed to be powerful tools to perform quantitative trait locus (QTL) analysis. This study illuminated the process and methods of QTL analysis with SSSLs on heading date (HD) in rice. QTL identification under two cropping seasons revealed 98 of 202 SSSLs associated with HD. A total of 22 QTLs were positioned in relative narrow regions on chromosomes by mrMLM.GUI software. QTL qHd3-1 was precisely positioned at 4.4 cM on chromosome 3 by a secondary F2 population. Through SSSL pyramiding, double segment substitution lines were constructed and used to analyze epistatic interactions of digenic loci. Epistatic effects for three pairs of QTLs were estimated, indicating the interactions of QTL qHd3-1 with other QTLs detected and the role to enhance the expression of early ripening or restraining of late flowering QTLs. Additionally, analysis of QTL in different environments provided information about the stability of HD QTLs. This type of research points out the way to excavate favorable genes for design breeding.
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spelling pubmed-61254612018-09-10 Analysis of QTLs on heading date based on single segment substitution lines in rice (Oryza Sativa L.) Zhu, Haitao Li, Yun Liang, Jiayan Luan, Xin Xu, Pan Wang, Shaokui Zhang, Guiquan Liu, Guifu Sci Rep Article Single segment substitution lines (SSSLs) have been confirmed to be powerful tools to perform quantitative trait locus (QTL) analysis. This study illuminated the process and methods of QTL analysis with SSSLs on heading date (HD) in rice. QTL identification under two cropping seasons revealed 98 of 202 SSSLs associated with HD. A total of 22 QTLs were positioned in relative narrow regions on chromosomes by mrMLM.GUI software. QTL qHd3-1 was precisely positioned at 4.4 cM on chromosome 3 by a secondary F2 population. Through SSSL pyramiding, double segment substitution lines were constructed and used to analyze epistatic interactions of digenic loci. Epistatic effects for three pairs of QTLs were estimated, indicating the interactions of QTL qHd3-1 with other QTLs detected and the role to enhance the expression of early ripening or restraining of late flowering QTLs. Additionally, analysis of QTL in different environments provided information about the stability of HD QTLs. This type of research points out the way to excavate favorable genes for design breeding. Nature Publishing Group UK 2018-09-05 /pmc/articles/PMC6125461/ /pubmed/30185925 http://dx.doi.org/10.1038/s41598-018-31377-7 Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Zhu, Haitao
Li, Yun
Liang, Jiayan
Luan, Xin
Xu, Pan
Wang, Shaokui
Zhang, Guiquan
Liu, Guifu
Analysis of QTLs on heading date based on single segment substitution lines in rice (Oryza Sativa L.)
title Analysis of QTLs on heading date based on single segment substitution lines in rice (Oryza Sativa L.)
title_full Analysis of QTLs on heading date based on single segment substitution lines in rice (Oryza Sativa L.)
title_fullStr Analysis of QTLs on heading date based on single segment substitution lines in rice (Oryza Sativa L.)
title_full_unstemmed Analysis of QTLs on heading date based on single segment substitution lines in rice (Oryza Sativa L.)
title_short Analysis of QTLs on heading date based on single segment substitution lines in rice (Oryza Sativa L.)
title_sort analysis of qtls on heading date based on single segment substitution lines in rice (oryza sativa l.)
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6125461/
https://www.ncbi.nlm.nih.gov/pubmed/30185925
http://dx.doi.org/10.1038/s41598-018-31377-7
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