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

Abstract 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 reveal...

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Autores principales:	Haitao Zhu, Yun Li, Jiayan Liang, Xin Luan, Pan Xu, Shaokui Wang, Guiquan Zhang, Guifu Liu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/4d3e5594dac3447e856b4bcf994511a3
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spelling	oai:doaj.org-article:4d3e5594dac3447e856b4bcf994511a32021-12-02T15:08:19ZAnalysis of QTLs on heading date based on single segment substitution lines in rice (Oryza Sativa L.)10.1038/s41598-018-31377-72045-2322https://doaj.org/article/4d3e5594dac3447e856b4bcf994511a32018-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-31377-7https://doaj.org/toc/2045-2322Abstract 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.Haitao ZhuYun LiJiayan LiangXin LuanPan XuShaokui WangGuiquan ZhangGuifu LiuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-8 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Haitao Zhu Yun Li Jiayan Liang Xin Luan Pan Xu Shaokui Wang Guiquan Zhang Guifu Liu Analysis of QTLs on heading date based on single segment substitution lines in rice (Oryza Sativa L.)
description	Abstract 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.
format	article
author	Haitao Zhu Yun Li Jiayan Liang Xin Luan Pan Xu Shaokui Wang Guiquan Zhang Guifu Liu
author_facet	Haitao Zhu Yun Li Jiayan Liang Xin Luan Pan Xu Shaokui Wang Guiquan Zhang Guifu Liu
author_sort	Haitao Zhu
title	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_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_sort	analysis of qtls on heading date based on single segment substitution lines in rice (oryza sativa l.)
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/4d3e5594dac3447e856b4bcf994511a3
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Analysis of QTLs on heading date based on single segment substitution lines in rice (Oryza Sativa L.)

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