Genetic identification of a major, novel and stably expressed QTL for effective tiller number from tetraploid wheat

Effective tiller number (ETN) is an important factor affecting plant architecture and wheat yield. The reduction of genetic diversity in common wheat breeding forces us to explore new genetic resources for ETN from wheat related species to increase wheat yield. Here, a tetraploid wheat recombinant i...

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Autores principales:	Li Chen, Hua Li, Yanmei Liu, Juan Yang, Ying Hou
Formato:	article
Lenguaje:	EN
Publicado:	Taylor & Francis Group 2021
Materias:	effective tiller number high-quality genetic map qtl mapping breeding potential Biotechnology TP248.13-248.65
Acceso en línea:	https://doaj.org/article/ccc2694ad857444a999f331de69df4ab
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spelling	oai:doaj.org-article:ccc2694ad857444a999f331de69df4ab2021-11-11T14:23:41ZGenetic identification of a major, novel and stably expressed QTL for effective tiller number from tetraploid wheat1310-28181314-353010.1080/13102818.2021.1996271https://doaj.org/article/ccc2694ad857444a999f331de69df4ab2021-01-01T00:00:00Zhttp://dx.doi.org/10.1080/13102818.2021.1996271https://doaj.org/toc/1310-2818https://doaj.org/toc/1314-3530Effective tiller number (ETN) is an important factor affecting plant architecture and wheat yield. The reduction of genetic diversity in common wheat breeding forces us to explore new genetic resources for ETN from wheat related species to increase wheat yield. Here, a tetraploid wheat recombinant inbred line (RIL) population developed from the cross between a durum and a wild emmer accession was used to construct a genetic map using the wheat 55 K single nucleotide polymorphism (SNP) array. The map contained 1154 SNP markers with a total length of 2452.79 cM and an average density of 2.13 cM/marker. Quantitative trait locus (QTL) analysis identified a major and stably expressed QTL, Qetn-DW-4B.1 for ENT, explaining 12.40–15.25% of the phenotypic variation. The favorable allele of this QTL was from wild emmer wheat and physically mapped in a 2.25 Mbp interval of 4BL containing 23 genes among which several were likely related to tiller development. Further comparison with previous studies showed that Qetn-DW-4B.1 is likely a novel QTL. Genetic associations between ETN and other agronomic traits were also analyzed. Collectively, this study reported a major QTL for ENT from related species and lays a foundation to fine mapping and further wheat molecular breeding. Supplemental data for this article is available online at https://doi.org/10.1080/13102818.2021.1996271 .Li ChenHua LiYanmei LiuJuan YangYing HouTaylor & Francis Grouparticleeffective tiller numberhigh-quality genetic mapqtl mappingbreeding potentialBiotechnologyTP248.13-248.65ENBiotechnology & Biotechnological Equipment, Vol 35, Iss 1, Pp 1538-1545 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	effective tiller number high-quality genetic map qtl mapping breeding potential Biotechnology TP248.13-248.65
spellingShingle	effective tiller number high-quality genetic map qtl mapping breeding potential Biotechnology TP248.13-248.65 Li Chen Hua Li Yanmei Liu Juan Yang Ying Hou Genetic identification of a major, novel and stably expressed QTL for effective tiller number from tetraploid wheat
description	Effective tiller number (ETN) is an important factor affecting plant architecture and wheat yield. The reduction of genetic diversity in common wheat breeding forces us to explore new genetic resources for ETN from wheat related species to increase wheat yield. Here, a tetraploid wheat recombinant inbred line (RIL) population developed from the cross between a durum and a wild emmer accession was used to construct a genetic map using the wheat 55 K single nucleotide polymorphism (SNP) array. The map contained 1154 SNP markers with a total length of 2452.79 cM and an average density of 2.13 cM/marker. Quantitative trait locus (QTL) analysis identified a major and stably expressed QTL, Qetn-DW-4B.1 for ENT, explaining 12.40–15.25% of the phenotypic variation. The favorable allele of this QTL was from wild emmer wheat and physically mapped in a 2.25 Mbp interval of 4BL containing 23 genes among which several were likely related to tiller development. Further comparison with previous studies showed that Qetn-DW-4B.1 is likely a novel QTL. Genetic associations between ETN and other agronomic traits were also analyzed. Collectively, this study reported a major QTL for ENT from related species and lays a foundation to fine mapping and further wheat molecular breeding. Supplemental data for this article is available online at https://doi.org/10.1080/13102818.2021.1996271 .
format	article
author	Li Chen Hua Li Yanmei Liu Juan Yang Ying Hou
author_facet	Li Chen Hua Li Yanmei Liu Juan Yang Ying Hou
author_sort	Li Chen
title	Genetic identification of a major, novel and stably expressed QTL for effective tiller number from tetraploid wheat
title_short	Genetic identification of a major, novel and stably expressed QTL for effective tiller number from tetraploid wheat
title_full	Genetic identification of a major, novel and stably expressed QTL for effective tiller number from tetraploid wheat
title_fullStr	Genetic identification of a major, novel and stably expressed QTL for effective tiller number from tetraploid wheat
title_full_unstemmed	Genetic identification of a major, novel and stably expressed QTL for effective tiller number from tetraploid wheat
title_sort	genetic identification of a major, novel and stably expressed qtl for effective tiller number from tetraploid wheat
publisher	Taylor & Francis Group
publishDate	2021
url	https://doaj.org/article/ccc2694ad857444a999f331de69df4ab
work_keys_str_mv	AT lichen geneticidentificationofamajornovelandstablyexpressedqtlforeffectivetillernumberfromtetraploidwheat AT huali geneticidentificationofamajornovelandstablyexpressedqtlforeffectivetillernumberfromtetraploidwheat AT yanmeiliu geneticidentificationofamajornovelandstablyexpressedqtlforeffectivetillernumberfromtetraploidwheat AT juanyang geneticidentificationofamajornovelandstablyexpressedqtlforeffectivetillernumberfromtetraploidwheat AT yinghou geneticidentificationofamajornovelandstablyexpressedqtlforeffectivetillernumberfromtetraploidwheat
_version_	1718438986421108736

Genetic identification of a major, novel and stably expressed QTL for effective tiller number from tetraploid wheat

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