Genetic dissection of QTLs associated with spikelet-related traits and grain size in sorghum

Abstract Although spikelet-related traits such as size of anther, spikelet, style, and stigma are associated with sexual reproduction in grasses, no QTLs have been reported in sorghum. Additionally, there are only a few reports on sorghum QTLs related to grain size, such as grain length, width, and...

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Autores principales:	Hideki Takanashi, Mitsutoshi Shichijo, Lisa Sakamoto, Hiromi Kajiya-Kanegae, Hiroyoshi Iwata, Wataru Sakamoto, Nobuhiro Tsutsumi
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d32de3bfe0ce49119224baa7a1334172
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spelling	oai:doaj.org-article:d32de3bfe0ce49119224baa7a13341722021-12-02T14:53:43ZGenetic dissection of QTLs associated with spikelet-related traits and grain size in sorghum10.1038/s41598-021-88917-x2045-2322https://doaj.org/article/d32de3bfe0ce49119224baa7a13341722021-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-88917-xhttps://doaj.org/toc/2045-2322Abstract Although spikelet-related traits such as size of anther, spikelet, style, and stigma are associated with sexual reproduction in grasses, no QTLs have been reported in sorghum. Additionally, there are only a few reports on sorghum QTLs related to grain size, such as grain length, width, and thickness. In this study, we performed QTL analyses of nine spikelet-related traits (length of sessile spikelet, pedicellate spikelet, pedicel, anther, style, and stigma; width of sessile spikelet and stigma; and stigma pigmentation) and six grain-related traits (length, width, thickness, length/width ratio, length/thickness ratio, and width/thickness ratio) using sorghum recombinant inbred lines. We identified 36 and 7 QTLs for spikelet-related traits and grain-related traits, respectively, and found that most sorghum spikelet organ length- and width-related traits were partially controlled by the dwarf genes Dw1 and Dw3. Conversely, we found that these Dw genes were not strongly involved in the regulation of grain size. The QTLs identified in this study aid in understanding the genetic basis of spikelet- and grain-related traits in sorghum.Hideki TakanashiMitsutoshi ShichijoLisa SakamotoHiromi Kajiya-KanegaeHiroyoshi IwataWataru SakamotoNobuhiro TsutsumiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-16 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Hideki Takanashi Mitsutoshi Shichijo Lisa Sakamoto Hiromi Kajiya-Kanegae Hiroyoshi Iwata Wataru Sakamoto Nobuhiro Tsutsumi Genetic dissection of QTLs associated with spikelet-related traits and grain size in sorghum
description	Abstract Although spikelet-related traits such as size of anther, spikelet, style, and stigma are associated with sexual reproduction in grasses, no QTLs have been reported in sorghum. Additionally, there are only a few reports on sorghum QTLs related to grain size, such as grain length, width, and thickness. In this study, we performed QTL analyses of nine spikelet-related traits (length of sessile spikelet, pedicellate spikelet, pedicel, anther, style, and stigma; width of sessile spikelet and stigma; and stigma pigmentation) and six grain-related traits (length, width, thickness, length/width ratio, length/thickness ratio, and width/thickness ratio) using sorghum recombinant inbred lines. We identified 36 and 7 QTLs for spikelet-related traits and grain-related traits, respectively, and found that most sorghum spikelet organ length- and width-related traits were partially controlled by the dwarf genes Dw1 and Dw3. Conversely, we found that these Dw genes were not strongly involved in the regulation of grain size. The QTLs identified in this study aid in understanding the genetic basis of spikelet- and grain-related traits in sorghum.
format	article
author	Hideki Takanashi Mitsutoshi Shichijo Lisa Sakamoto Hiromi Kajiya-Kanegae Hiroyoshi Iwata Wataru Sakamoto Nobuhiro Tsutsumi
author_facet	Hideki Takanashi Mitsutoshi Shichijo Lisa Sakamoto Hiromi Kajiya-Kanegae Hiroyoshi Iwata Wataru Sakamoto Nobuhiro Tsutsumi
author_sort	Hideki Takanashi
title	Genetic dissection of QTLs associated with spikelet-related traits and grain size in sorghum
title_short	Genetic dissection of QTLs associated with spikelet-related traits and grain size in sorghum
title_full	Genetic dissection of QTLs associated with spikelet-related traits and grain size in sorghum
title_fullStr	Genetic dissection of QTLs associated with spikelet-related traits and grain size in sorghum
title_full_unstemmed	Genetic dissection of QTLs associated with spikelet-related traits and grain size in sorghum
title_sort	genetic dissection of qtls associated with spikelet-related traits and grain size in sorghum
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/d32de3bfe0ce49119224baa7a1334172
work_keys_str_mv	AT hidekitakanashi geneticdissectionofqtlsassociatedwithspikeletrelatedtraitsandgrainsizeinsorghum AT mitsutoshishichijo geneticdissectionofqtlsassociatedwithspikeletrelatedtraitsandgrainsizeinsorghum AT lisasakamoto geneticdissectionofqtlsassociatedwithspikeletrelatedtraitsandgrainsizeinsorghum AT hiromikajiyakanegae geneticdissectionofqtlsassociatedwithspikeletrelatedtraitsandgrainsizeinsorghum AT hiroyoshiiwata geneticdissectionofqtlsassociatedwithspikeletrelatedtraitsandgrainsizeinsorghum AT watarusakamoto geneticdissectionofqtlsassociatedwithspikeletrelatedtraitsandgrainsizeinsorghum AT nobuhirotsutsumi geneticdissectionofqtlsassociatedwithspikeletrelatedtraitsandgrainsizeinsorghum
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Genetic dissection of QTLs associated with spikelet-related traits and grain size in sorghum

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