Genome-Wide Association Analysis of the Genetic Basis for Sheath Blight Resistance in Rice.

ABSTRACT:

Background

Sheath blight (ShB), caused by Rhizoctonia solani Kühn, is one of the most destructive rice diseases. Developing ShB-resistant rice cultivars represents the most economical and environmentally sound strategy for managing ShB.

Results

To characterize the genetic basis for ShB resistance in rice, we conducted association studies for traits related to ShB resistance, namely culm length (CL), lesion height (LH), and relative lesion height (RLH). Combined a single locus genome-wide scan and a multi-locus method using 2,977,750 single-nucleotide polymorphisms to analyse 563 rice accessions, we detected 134, 562, and 75 suggestive associations with CL, LH, and RLH, respectively. The adjacent signals associated with RLH were merged into 27 suggestively associated loci (SA

SUBMITTER: Zhang F 

PROVIDER: S-EPMC6920286 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature