Discovery of stripe rust resistance with incomplete dominance in wild emmer wheat using bulked segregant analysis sequencing.
Journal
Communications biology
ISSN: 2399-3642
Titre abrégé: Commun Biol
Pays: England
ID NLM: 101719179
Informations de publication
Date de publication:
17 08 2022
17 08 2022
Historique:
received:
04
04
2022
accepted:
26
07
2022
entrez:
17
8
2022
pubmed:
18
8
2022
medline:
20
8
2022
Statut:
epublish
Résumé
Durable crop disease resistance is an essential component of global food security. Continuous pathogen evolution leads to a breakdown of resistance and there is a pressing need to characterize new resistance genes for use in plant breeding. Here we identified an accession of wild emmer wheat (Triticum turgidum ssp. dicoccoides), PI 487260, that is highly resistant to multiple stripe rust isolates. Genetic analysis revealed resistance was conferred by a single, incompletely dominant gene designated as Yr84. Through bulked segregant analysis sequencing (BSA-Seq) we identified a 52.7 Mb resistance-associated interval on chromosome 1BS. Detected variants were used to design genetic markers for recombinant screening, further refining the interval of Yr84 to a 2.3-3.3 Mb in tetraploid wheat genomes. This interval contains 34 candidate genes encoding for protein domains involved in disease resistance responses. Furthermore, KASP markers closely-linked to Yr84 were developed to facilitate marker-assisted selection for rust resistance breeding.
Identifiants
pubmed: 35978056
doi: 10.1038/s42003-022-03773-3
pii: 10.1038/s42003-022-03773-3
pmc: PMC9386016
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
826Informations de copyright
© 2022. The Author(s).
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