Journal

Functional plant biology : FPB
ISSN: 1445-4416
Titre abrégé: Funct Plant Biol
Pays: Australia
ID NLM: 101154361

Informations de publication

Date de publication:
06 2022
Historique:
entrez: 8 6 2022
pubmed: 9 6 2022
medline: 9 6 2022
Statut: ppublish

Résumé

Bread wheat (Triticum aestivum L.) is one of the most important food crops, however it is only moderately tolerant to salinity stress. To improve wheat yield under saline conditions, breeding for improved salinity tolerance of wheat is needed. We have identified nine quantitative trail loci (QTL) for different salt tolerance sub-traits in a recombinant inbred line (RIL) population, derived from the bi-parental cross of Excalibur × Kukri. This population was screened for salinity tolerance subtraits using a combination of both destructive and non-destructive phenotyping. Genotyping by sequencing (GBS) was used to construct a high-density genetic linkage map, consisting of 3236 markers, and utilised for mapping QTL. Of the nine mapped QTL, six were detected under salt stress, including QTL for maintenance of shoot growth under salinity (QG ( 1-5 ) .asl -5A , QG ( 1-5 ) .asl -7B ) sodium accumulation (QNa.asl -2A ), chloride accumulation (QCl.asl -2A , QCl.asl -3A ) and potassium : sodium ratio (QK :Na.asl -2DS2 ). Potential candidate genes within these QTL intervals were shortlisted using bioinformatics tools. These findings are expected to facilitate the breeding of new salt tolerant wheat cultivars. Soil salinity causes major yield losses in bread wheat, which is moderately tolerant to salinity stress. Using high throughput genotyping and phenotyping techniques, we identified quantitative trail loci (QTL) for different salt tolerance sub-traits in bread wheat and shortlisted potential candidate genes. These QTL and candidate genes may prove useful in breeding for salt tolerant wheat cultivars.

Identifiants

pubmed: 35675208
pii: FP20167_CO
doi: 10.1071/FP20167_CO
doi:

Types de publication

Journal Article Published Erratum

Langues

eng

Sous-ensembles de citation

IM

Pagination

672

Commentaires et corrections

Type : ErratumFor

Auteurs

Classifications MeSH