Genome-Wide Association Mapping Reveals Novel Putative Gene Candidates Governing Reproductive Stage Heat Stress Tolerance in Rice.

GWAS marker-trait association quantitative trait nucleotides reproductive stage heat stress tolerance rice

Journal

Frontiers in genetics
ISSN: 1664-8021
Titre abrégé: Front Genet
Pays: Switzerland
ID NLM: 101560621

Informations de publication

Date de publication:
2022
Historique:
received: 15 02 2022
accepted: 25 03 2022
entrez: 23 6 2022
pubmed: 24 6 2022
medline: 24 6 2022
Statut: epublish

Résumé

Temperature rise predicted for the future will severely affect rice productivity because the crop is highly sensitive to heat stress at the reproductive stage. Breeding tolerant varieties is an economically viable option to combat heat stress, for which the knowledge of target genomic regions associated with the reproductive stage heat stress tolerance (RSHT) is essential. A set of 192 rice genotypes of diverse origins were evaluated under natural field conditions through staggered sowings for RSHT using two surrogate traits, spikelet fertility and grain yield, which showed significant reduction under heat stress. These genotypes were genotyped using a 50 k SNP array, and the association analysis identified 10 quantitative trait nucleotides (QTNs) for grain yield, of which one QTN (

Identifiants

pubmed: 35734422
doi: 10.3389/fgene.2022.876522
pii: 876522
pmc: PMC9208292
doi:

Types de publication

Journal Article

Langues

eng

Pagination

876522

Informations de copyright

Copyright © 2022 Ravikiran, Gopala Krishnan, Abhijith, Bollinedi, Nagarajan, Vinod, Bhowmick, Pal, Ellur and Singh.

Déclaration de conflit d'intérêts

The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

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Auteurs

K T Ravikiran (KT)

Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, India.

S Gopala Krishnan (S)

Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, India.

K P Abhijith (KP)

Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, India.

H Bollinedi (H)

Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, India.

M Nagarajan (M)

Rice Breeding and Genetics Research Centre, ICAR-IARI, Aduthurai, India.

K K Vinod (KK)

Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, India.

P K Bhowmick (PK)

Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, India.

Madan Pal (M)

Division of Plant Physiology, ICAR-Indian Agricultural Research Institute, New Delhi, India.

R K Ellur (RK)

Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, India.

A K Singh (AK)

Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, India.

Classifications MeSH