Genetic diversity and selective sweeps in historical and modern Canadian spring wheat cultivars using the 90K SNP array.
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
10 12 2021
10 12 2021
Historique:
received:
22
06
2021
accepted:
22
11
2021
entrez:
11
12
2021
pubmed:
12
12
2021
medline:
27
1
2022
Statut:
epublish
Résumé
Previous molecular characterization studies conducted in Canadian wheat cultivars shed some light on the impact of plant breeding on genetic diversity, but the number of varieties and markers used was small. Here, we used 28,798 markers of the wheat 90K single nucleotide polymorphisms to (a) assess the extent of genetic diversity, relationship, population structure, and divergence among 174 historical and modern Canadian spring wheat varieties registered from 1905 to 2018 and 22 unregistered lines (hereinafter referred to as cultivars), and (b) identify genomic regions that had undergone selection. About 91% of the pairs of cultivars differed by 20-40% of the scored alleles, but only 7% of the pairs had kinship coefficients of < 0.250, suggesting the presence of a high proportion of redundancy in allelic composition. Although the 196 cultivars represented eight wheat classes, our results from phylogenetic, principal component, and the model-based population structure analyses revealed three groups, with no clear structure among most wheat classes, breeding programs, and breeding periods. F
Identifiants
pubmed: 34893626
doi: 10.1038/s41598-021-02666-5
pii: 10.1038/s41598-021-02666-5
pmc: PMC8664822
doi:
Substances chimiques
Genetic Markers
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
23773Informations de copyright
© 2021. The Author(s).
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