Variations in DENSE AND ERECT PANICLE 1 (DEP1) contribute to the diversity of the panicle trait in high-yielding japonica rice varieties in northern China.

ABSTRACT: Rice is one of mankind's major food staples, and the erect panicle architecture in rice is an important morphological improvement. The dense and erect panicle 1 (DEP1) locus corresponds with the formation of erect panicles and has been widely used in rice breeding. However, the genetic diversity of DEP1 remains narrow. In order to improve the genetic diversity of DEP1, we used a rice germplasm collection of 72 high yielding japonica rice varieties to analyze the contribution of DEP1 to the panicle traits. We found 45 SNPs and 26 insertions and deletions (indels) within the DNA fragment of DEP1. We further detected 7 haplotypes and found that the replacement of 637 bp by a 12 bp fragment could explain the erect panicle architecture in all 72

SUBMITTER: Zhao M 

PROVIDER: S-EPMC5010314 | biostudies-literature | 2016 Sep

REPOSITORIES: biostudies-literature