Integrated RNA Sequencing and QTL Mapping to Identify Candidate Genes from Oryza rufipogon Associated with Salt Tolerance at the Seedling Stage.

ABSTRACT: Soil salinity is a common abiotic stress affecting crop productivity. To identify favorable alleles from wild rice (Oryza rufipogon Griff.) that enhance salinity tolerance of rice (O. sativa L.), a set of introgression lines (ILs) were developed. The ILs were derived from an O. rufipogon accession collected from Chaling (Hunan Province, China) as the donor, and a widely grown O. sativa indica cultivar 93-11 as the recipient. Through evaluating the salt tolerance of 285 ILs at the seedling stage, a total of 10 quantitative trait loci (QTLs) related to salt tolerance were identified on chromosomes 1, 5, 7 and 9-12, with individual QTLs explaining 2-8% of phenotypic variance. The O. rufipogon-derived alleles at four QTLs improved salt tolerance in the

SUBMITTER: Wang S 

PROVIDER: S-EPMC5559499 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature