Analysis of genotype-by-environment interactions in a maize mapping population.
environment interactions
genotype ×
maize
multiparental populations
Journal
G3 (Bethesda, Md.)
ISSN: 2160-1836
Titre abrégé: G3 (Bethesda)
Pays: England
ID NLM: 101566598
Informations de publication
Date de publication:
04 03 2022
04 03 2022
Historique:
accepted:
16
12
2021
received:
08
07
2021
pubmed:
9
2
2022
medline:
11
3
2022
entrez:
8
2
2022
Statut:
ppublish
Résumé
Genotype-by-environment interactions are a significant challenge for crop breeding as well as being important for understanding the genetic basis of environmental adaptation. In this study, we analyzed genotype-by-environment interactions in a maize multiparent advanced generation intercross population grown across 5 environments. We found that genotype-by-environment interactions contributed as much as genotypic effects to the variation in some agronomically important traits. To understand how genetic correlations between traits change across environments, we estimated the genetic variance-covariance matrix in each environment. Changes in genetic covariances between traits across environments were common, even among traits that show low genotype-by-environment variance. We also performed a genome-wide association study to identify markers associated with genotype-by-environment interactions but found only a small number of significantly associated markers, possibly due to the highly polygenic nature of genotype-by-environment interactions in this population.
Identifiants
pubmed: 35134181
pii: 6520465
doi: 10.1093/g3journal/jkac013
pmc: PMC8895993
pii:
doi:
Banques de données
figshare
['10.6084/m9.figshare.14963034']
Types de publication
Journal Article
Research Support, U.S. Gov't, Non-P.H.S.
Langues
eng
Sous-ensembles de citation
IM
Informations de copyright
© The Author(s) 2022. Published by Oxford University Press on behalf of Genetics Society of America.
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