Linkage mapping and QTL analysis of flowering time in faba bean

Abstract Flowering time marks the transition from vegetative to reproductive growth and is key for optimal yield in any crop. The molecular mechanisms controlling this trait have been extensively studied in model plants such as Arabidopsis thaliana and rice. While knowledge on the molecular regulati...

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Autores principales:	David Aguilar-Benitez, Inés Casimiro-Soriguer, Fouad Maalouf, Ana M. Torres
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/13078279713d419897e15cb9eb02b1ad
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spelling	oai:doaj.org-article:13078279713d419897e15cb9eb02b1ad2021-12-02T14:33:51ZLinkage mapping and QTL analysis of flowering time in faba bean10.1038/s41598-021-92680-42045-2322https://doaj.org/article/13078279713d419897e15cb9eb02b1ad2021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-92680-4https://doaj.org/toc/2045-2322Abstract Flowering time marks the transition from vegetative to reproductive growth and is key for optimal yield in any crop. The molecular mechanisms controlling this trait have been extensively studied in model plants such as Arabidopsis thaliana and rice. While knowledge on the molecular regulation of this trait is rapidly increasing in sequenced galegoid legume crops, understanding in faba bean remains limited. Here we exploited translational genomics from model legume crops to identify and fine map QTLs linked to flowering time in faba bean. Among the 31 candidate genes relevant for flowering control in A. thaliana and Cicer arietinum assayed, 25 could be mapped in a segregating faba bean RIL population. While most of the genes showed conserved synteny among related legume species, none of them co-localized with the 9 significant QTL regions identified. The FT gene, previously implicated in the control of flowering time in numerous members of the temperate legume clade, mapped close to the most relevant stable and conserved QTL in chromosome V. Interestingly, QTL analysis suggests an important role of epigenetic modifications in faba bean flowering control. The new QTLs and candidate genes assayed here provide a robust framework for further genetic studies and will contribute to the elucidation of the molecular mechanisms controlling this trait.David Aguilar-BenitezInés Casimiro-SoriguerFouad MaaloufAna M. TorresNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q David Aguilar-Benitez Inés Casimiro-Soriguer Fouad Maalouf Ana M. Torres Linkage mapping and QTL analysis of flowering time in faba bean
description	Abstract Flowering time marks the transition from vegetative to reproductive growth and is key for optimal yield in any crop. The molecular mechanisms controlling this trait have been extensively studied in model plants such as Arabidopsis thaliana and rice. While knowledge on the molecular regulation of this trait is rapidly increasing in sequenced galegoid legume crops, understanding in faba bean remains limited. Here we exploited translational genomics from model legume crops to identify and fine map QTLs linked to flowering time in faba bean. Among the 31 candidate genes relevant for flowering control in A. thaliana and Cicer arietinum assayed, 25 could be mapped in a segregating faba bean RIL population. While most of the genes showed conserved synteny among related legume species, none of them co-localized with the 9 significant QTL regions identified. The FT gene, previously implicated in the control of flowering time in numerous members of the temperate legume clade, mapped close to the most relevant stable and conserved QTL in chromosome V. Interestingly, QTL analysis suggests an important role of epigenetic modifications in faba bean flowering control. The new QTLs and candidate genes assayed here provide a robust framework for further genetic studies and will contribute to the elucidation of the molecular mechanisms controlling this trait.
format	article
author	David Aguilar-Benitez Inés Casimiro-Soriguer Fouad Maalouf Ana M. Torres
author_facet	David Aguilar-Benitez Inés Casimiro-Soriguer Fouad Maalouf Ana M. Torres
author_sort	David Aguilar-Benitez
title	Linkage mapping and QTL analysis of flowering time in faba bean
title_short	Linkage mapping and QTL analysis of flowering time in faba bean
title_full	Linkage mapping and QTL analysis of flowering time in faba bean
title_fullStr	Linkage mapping and QTL analysis of flowering time in faba bean
title_full_unstemmed	Linkage mapping and QTL analysis of flowering time in faba bean
title_sort	linkage mapping and qtl analysis of flowering time in faba bean
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/13078279713d419897e15cb9eb02b1ad
work_keys_str_mv	AT davidaguilarbenitez linkagemappingandqtlanalysisoffloweringtimeinfababean AT inescasimirosoriguer linkagemappingandqtlanalysisoffloweringtimeinfababean AT fouadmaalouf linkagemappingandqtlanalysisoffloweringtimeinfababean AT anamtorres linkagemappingandqtlanalysisoffloweringtimeinfababean
_version_	1718391115238866944

Linkage mapping and QTL analysis of flowering time in faba bean

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