QTL mapping and candidate gene analysis of peduncle vascular bundle related traits in rice by genome-wide association study.

ABSTRACT:

Background

The vascular bundle especially in the peduncle is one of crucial limiting factors of rice yield, and it determines how plants efficiently transport photosynthetic products, mineral nutrients and water from leaf and root to panicle. However, the genetic base of rice vascular bundle related traits in the peduncle still remains unknown.

Results

The 423 panel showed substantial natural variations of peduncle vascular bundle. In total, 48 quantitative trait loci/locus (QTL) affecting the eight traits were identified throughout the genome by applying a significance threshold of P < 1.0 × 10^- 4. Combined determining linkage disequilibrium (LD) blocks associated with significant SNPs and haplotype analyses allowed us to shortlist six candidate genes for four im

SUBMITTER: Zhai L 

PROVIDER: S-EPMC5840110 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature