QTL mapping for low temperature germination in rapeseed

Abstract Rapeseed, a major oil crop in the world, is easily affected by low-temperature stress. A low temperature delays seed germination and increases seedling mortality, adversely affecting rapeseed growth and production. In the present study, a tolerant cultivar (Huyou21) was crossed with a susce...

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Autores principales:	Jifeng Zhu, Weirong Wang, Meiyan Jiang, Liyong Yang, Xirong Zhou
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/c18952ce0ffe49c6af6cadef44d4b5ef
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spelling	oai:doaj.org-article:c18952ce0ffe49c6af6cadef44d4b5ef2021-12-05T12:16:16ZQTL mapping for low temperature germination in rapeseed10.1038/s41598-021-02912-w2045-2322https://doaj.org/article/c18952ce0ffe49c6af6cadef44d4b5ef2021-12-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-02912-whttps://doaj.org/toc/2045-2322Abstract Rapeseed, a major oil crop in the world, is easily affected by low-temperature stress. A low temperature delays seed germination and increases seedling mortality, adversely affecting rapeseed growth and production. In the present study, a tolerant cultivar (Huyou21) was crossed with a susceptible genotype (3429) to develop a mapping population consisting of 574 F2 progenies and elucidate the genetic mechanisms of seed germination under low temperatures. Two quantitative trait loci (QTL) for low-temperature germination (LTG) were detected, one on chromosome A09 (named qLTGA9-1) and the other on chromosome C01 (named qLTGC1-1), using the QTL-seq approach and confirmed via linkage analysis in the mapping population. Further, qLTGA9-1 was mapped to a 341.86 kb interval between the SSR markers Nys9A212 and Nys9A215. In this region, 69 genes including six specific genes with moderate or high effect function variants were identified based on the Ningyou7 genome sequence. Meanwhile, qLTGC1-1 was mapped onto a 1.31 Mb interval between SSR markers Nys1C96 and Nys1C117. In this region, 133 genes including five specific genes with moderate effect function variants were identified. These specific genes within the two QTL could be used for further studies on cold tolerance and as targets in rapeseed breeding programs.Jifeng ZhuWeirong WangMeiyan JiangLiyong YangXirong ZhouNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jifeng Zhu Weirong Wang Meiyan Jiang Liyong Yang Xirong Zhou QTL mapping for low temperature germination in rapeseed
description	Abstract Rapeseed, a major oil crop in the world, is easily affected by low-temperature stress. A low temperature delays seed germination and increases seedling mortality, adversely affecting rapeseed growth and production. In the present study, a tolerant cultivar (Huyou21) was crossed with a susceptible genotype (3429) to develop a mapping population consisting of 574 F2 progenies and elucidate the genetic mechanisms of seed germination under low temperatures. Two quantitative trait loci (QTL) for low-temperature germination (LTG) were detected, one on chromosome A09 (named qLTGA9-1) and the other on chromosome C01 (named qLTGC1-1), using the QTL-seq approach and confirmed via linkage analysis in the mapping population. Further, qLTGA9-1 was mapped to a 341.86 kb interval between the SSR markers Nys9A212 and Nys9A215. In this region, 69 genes including six specific genes with moderate or high effect function variants were identified based on the Ningyou7 genome sequence. Meanwhile, qLTGC1-1 was mapped onto a 1.31 Mb interval between SSR markers Nys1C96 and Nys1C117. In this region, 133 genes including five specific genes with moderate effect function variants were identified. These specific genes within the two QTL could be used for further studies on cold tolerance and as targets in rapeseed breeding programs.
format	article
author	Jifeng Zhu Weirong Wang Meiyan Jiang Liyong Yang Xirong Zhou
author_facet	Jifeng Zhu Weirong Wang Meiyan Jiang Liyong Yang Xirong Zhou
author_sort	Jifeng Zhu
title	QTL mapping for low temperature germination in rapeseed
title_short	QTL mapping for low temperature germination in rapeseed
title_full	QTL mapping for low temperature germination in rapeseed
title_fullStr	QTL mapping for low temperature germination in rapeseed
title_full_unstemmed	QTL mapping for low temperature germination in rapeseed
title_sort	qtl mapping for low temperature germination in rapeseed
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/c18952ce0ffe49c6af6cadef44d4b5ef
work_keys_str_mv	AT jifengzhu qtlmappingforlowtemperaturegerminationinrapeseed AT weirongwang qtlmappingforlowtemperaturegerminationinrapeseed AT meiyanjiang qtlmappingforlowtemperaturegerminationinrapeseed AT liyongyang qtlmappingforlowtemperaturegerminationinrapeseed AT xirongzhou qtlmappingforlowtemperaturegerminationinrapeseed
_version_	1718372101777260544

QTL mapping for low temperature germination in rapeseed

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