Ghd8 controls rice photoperiod sensitivity by forming a complex that interacts with Ghd7.

ABSTRACT:

Background

Flowering time is one of the most important agronomic characteristics that ultimately determine yield potential and eco-geographical adaptation in crops. Ghd8 and Ghd7, two major flowering genes, have similar functions and large pleiotropic effects in controlling the heading date, plant height and grain yield of rice. However, these gene interactions at the genetic and molecular levels have not been determined to date.

Results

In this study, we investigated the genetic interaction between Ghd8 and Ghd7 by using a set of near-isogenic lines and a panel of natural germplasm accessions in rice. We found that Ghd8 affected multiple agronomic traits in a functional Ghd7-dependent manner. Both functional Ghd8 and Ghd7 are pivotal for rice photoperiod sensitivity control

SUBMITTER: Wang P 

PROVIDER: S-EPMC6825352 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature