Genetic control of root architectural traits in KDML105 chromosome segment substitution lines under well-watered and drought stress conditions

Drought is a major constraint in rainfed rice production and root architectural traits are important breeding targets for improving productivity under drought stress. A set of chromosome segment substitution lines (KDML105-CSSLs) and KDML105 were grown in the wet season at two sites (Rice Gene Disco...

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Autores principales:	Mathurada Ruangsiri, Phanchita Vejchasarn, Patompong Saengwilai, Jonathan Lynch, Malcolm J. Bennett, Kathleen M. Brown, Cattleya Chutteang, Ratri Boonruangrod, Jeremy Shearman, Theerayut Toojinda, Jonaliza L. Siangliw
Formato:	article
Lenguaje:	EN
Publicado:	Taylor & Francis Group 2021
Materias:	rice kdml105-cssl drought root architecture qtl Plant culture SB1-1110
Acceso en línea:	https://doaj.org/article/074fa4f7729a4c6ea0de9951ec63fe61
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spelling	oai:doaj.org-article:074fa4f7729a4c6ea0de9951ec63fe612021-11-26T11:19:47ZGenetic control of root architectural traits in KDML105 chromosome segment substitution lines under well-watered and drought stress conditions1343-943X1349-100810.1080/1343943X.2021.1883990https://doaj.org/article/074fa4f7729a4c6ea0de9951ec63fe612021-10-01T00:00:00Zhttp://dx.doi.org/10.1080/1343943X.2021.1883990https://doaj.org/toc/1343-943Xhttps://doaj.org/toc/1349-1008Drought is a major constraint in rainfed rice production and root architectural traits are important breeding targets for improving productivity under drought stress. A set of chromosome segment substitution lines (KDML105-CSSLs) and KDML105 were grown in the wet season at two sites (Rice Gene Discovery (RGD) and Ubon Ratchatani Rice Research Center (URRC)) in Thailand under well-watered (WW) and drought stress (DS) treatments. RGD is characterized by having a heavy clay soil type while URRC’s soil has a high percentage of sand and characterized by infertility. Root architecture traits varied within the population at both sites and exhibited plasticity in response to drought as affected by location by water regime interaction. Lateral root density increased by 77% with drought at RGD but decreased by 18% at URRC. The proportion of nodal roots that elongated more vertically increased under drought stress by 21%, at RGD. Root number per tiller was negatively associated with tiller number and biomass at RGD under drought, while lateral root density was negatively associated with biomass under drought at URRC. Eight QTL were identified for the number of nodal roots per tiller, lateral root density, and nodal root growth angle. Several candidate genes were identified by annotating the genes within the QTL regions. Our study presented genetic insights into root architectural traits with potential use in rice breeding programs for drought tolerance.Mathurada RuangsiriPhanchita VejchasarnPatompong SaengwilaiJonathan LynchMalcolm J. BennettKathleen M. BrownCattleya ChutteangRatri BoonruangrodJeremy ShearmanTheerayut ToojindaJonaliza L. SiangliwTaylor & Francis Grouparticlericekdml105-cssldroughtroot architectureqtlPlant cultureSB1-1110ENPlant Production Science, Vol 24, Iss 4, Pp 512-529 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	rice kdml105-cssl drought root architecture qtl Plant culture SB1-1110
spellingShingle	rice kdml105-cssl drought root architecture qtl Plant culture SB1-1110 Mathurada Ruangsiri Phanchita Vejchasarn Patompong Saengwilai Jonathan Lynch Malcolm J. Bennett Kathleen M. Brown Cattleya Chutteang Ratri Boonruangrod Jeremy Shearman Theerayut Toojinda Jonaliza L. Siangliw Genetic control of root architectural traits in KDML105 chromosome segment substitution lines under well-watered and drought stress conditions
description	Drought is a major constraint in rainfed rice production and root architectural traits are important breeding targets for improving productivity under drought stress. A set of chromosome segment substitution lines (KDML105-CSSLs) and KDML105 were grown in the wet season at two sites (Rice Gene Discovery (RGD) and Ubon Ratchatani Rice Research Center (URRC)) in Thailand under well-watered (WW) and drought stress (DS) treatments. RGD is characterized by having a heavy clay soil type while URRC’s soil has a high percentage of sand and characterized by infertility. Root architecture traits varied within the population at both sites and exhibited plasticity in response to drought as affected by location by water regime interaction. Lateral root density increased by 77% with drought at RGD but decreased by 18% at URRC. The proportion of nodal roots that elongated more vertically increased under drought stress by 21%, at RGD. Root number per tiller was negatively associated with tiller number and biomass at RGD under drought, while lateral root density was negatively associated with biomass under drought at URRC. Eight QTL were identified for the number of nodal roots per tiller, lateral root density, and nodal root growth angle. Several candidate genes were identified by annotating the genes within the QTL regions. Our study presented genetic insights into root architectural traits with potential use in rice breeding programs for drought tolerance.
format	article
author	Mathurada Ruangsiri Phanchita Vejchasarn Patompong Saengwilai Jonathan Lynch Malcolm J. Bennett Kathleen M. Brown Cattleya Chutteang Ratri Boonruangrod Jeremy Shearman Theerayut Toojinda Jonaliza L. Siangliw
author_facet	Mathurada Ruangsiri Phanchita Vejchasarn Patompong Saengwilai Jonathan Lynch Malcolm J. Bennett Kathleen M. Brown Cattleya Chutteang Ratri Boonruangrod Jeremy Shearman Theerayut Toojinda Jonaliza L. Siangliw
author_sort	Mathurada Ruangsiri
title	Genetic control of root architectural traits in KDML105 chromosome segment substitution lines under well-watered and drought stress conditions
title_short	Genetic control of root architectural traits in KDML105 chromosome segment substitution lines under well-watered and drought stress conditions
title_full	Genetic control of root architectural traits in KDML105 chromosome segment substitution lines under well-watered and drought stress conditions
title_fullStr	Genetic control of root architectural traits in KDML105 chromosome segment substitution lines under well-watered and drought stress conditions
title_full_unstemmed	Genetic control of root architectural traits in KDML105 chromosome segment substitution lines under well-watered and drought stress conditions
title_sort	genetic control of root architectural traits in kdml105 chromosome segment substitution lines under well-watered and drought stress conditions
publisher	Taylor & Francis Group
publishDate	2021
url	https://doaj.org/article/074fa4f7729a4c6ea0de9951ec63fe61
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Genetic control of root architectural traits in KDML105 chromosome segment substitution lines under well-watered and drought stress conditions

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