Integrating GWAS and transcriptomics to identify candidate genes conferring heat tolerance in rice.

ABSTRACT:

Introduction

Rice (Oryza sativa L.) production is being challenged by global warming. Identifying new loci and favorable alleles associated with heat tolerance is crucial to developing rice heat-tolerant varieties.

Methods

We evaluated the heat tolerance at the seedling stage using 620 diverse rice accessions. A total of six loci associated with heat tolerance were identified by a genome-wide association study (GWAS) with ~2.8 million single nucleotide polymorphisms (SNPs).

Results

Among the six detected loci, qHT7 harbored the strongest association signal and the most associated SNPs. By comparing the transcriptomes of two representative accessions with contrasting heat tolerance, LOC_Os07g48710 (OsVQ30) was selected as a promising candida

SUBMITTER: Li P 

PROVIDER: S-EPMC9868562 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature