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Physical Mapping of QTL in Four Spring Wheat Populations under Conventional and Organic Management Systems. I. Earliness

Type de document
journalArticle
Langue source
-- Langue source --
Titre
Physical Mapping of QTL in Four Spring Wheat Populations under Conventional and Organic Management Systems. I. Earliness
Titre français
Titre anglais
Auteur(s)
  • SEMAGN Kassa
  • IQBAL Muhammad
  • CHEN Hua
  • PEREZ-LARA Enid
  • BEMISTER Darcy H.
  • XIANG Rongrong
  • ZOU Jun
  • ASIF Muhammad
  • KAMRAN Atif
  • N’DIAYE Amidou
  • RANDHAWA Harpinder
  • POZNIAK Curtis
  • SPANER Dean
Editeur(s)
Autre(s)
Id
JI4UNBYX
Version
3680
Url zotero
https://www.zotero.org/groups/2567444/items/JI4UNBYX
Date ajout
3 mai 2021 14:47
Date modification
3 mai 2021 14:50
Résumé
In previous studies, we reported quantitative trait loci (QTL) associated with the heading, flowering, and maturity time in four hard red spring wheat recombinant inbred line (RIL) populations but the results are scattered in population-specific genetic maps, which is challenging to exploit efficiently in breeding. Here, we mapped and characterized QTL associated with these three earliness traits using the International Wheat Genome Sequencing Consortium (IWGSC) RefSeq v2.0 physical map. Our data consisted of (i) 6526 single nucleotide polymorphisms (SNPs) and two traits evaluated at five conventionally managed environments in the ‘Cutler’ × ‘AC Barrie’ population; (ii) 3158 SNPs and two traits evaluated across three organic and seven conventional managements in the ‘Attila’ × ‘CDC Go’ population; (iii) 5731 SilicoDArT and SNP markers and the three traits evaluated at four conventional and organic management systems in the ‘Peace’ × ‘Carberry’ population; and (iv) 1058 SNPs and two traits evaluated across two conventionally and organically managed environments in the ‘Peace’ × ‘CDC Stanley’ population. Using composite interval mapping, the phenotypic data across all environments, and the IWGSC RefSeq v2.0 physical maps, we identified a total of 44 QTL associated with days to heading (11), flowering (10), and maturity (23). Fifteen of the 44 QTL were common to both conventional and organic management systems, and the remaining QTL were specific to either the conventional (21) or organic (8) management systems. Some QTL harbor known genes, including the Vrn-A1, Vrn-B1, Rht-A1, and Rht-B1 that regulate photoperiodism, flowering time, and plant height in wheat, which lays a solid basis for cloning and further characterization.
Note
None
CRAW tags
  • AB - Modalité bio
  • FREDO santé végétale
  • FREDO technologie et innovation
  • GEO Canada
  • GEO Chine
  • GEO Etats-Unis
  • GEO Pakistan
  • azote
  • blé
  • céréale
  • génétique
WEB tags
  • DArTseq
  • SNP array
  • mapping
  • nitrogen use efficiency
  • organic agriculture
  • physical map
  • wheat
Titre de la publication
Plants
Volume
10
Pages
853
Date caractères
2021/5
Date publication
4 mai 2021
Doi
10.3390/plants10050853 Le DOI est une URL unique de référencement d'une publication. Il est donc plus fiable et permanent qu'une URL classique
Url publication
https://www.mdpi.com/2223-7747/10/5/853