Natural variation at qHd1 affects heading date acceleration at high temperatures with pleiotropism for yield traits in rice.

ABSTRACT:

Background

Rice is highly sensitive to temperature fluctuations. Recently, the frequent occurrence of high temperature stress has heavily influenced rice production. Proper heading date in specific environmental conditions could ensure high grain yield. Rice heading greatly depends on the accurate measurement of environmental changes, particularly in day length and temperature. In contrary to the detailed understanding of the photoperiod pathway, little has been known about how temperature regulates the genetic control of rice heading.

Results

Near isogenic lines that were segregated for qHd1, were developed from a cross between indica rice varieties Zhenshan 97 (ZS97) and Milyang 46 (MY46). Using a five sowing-date experiment in the paddy field, we observed the involvement

SUBMITTER: Chen JY 

PROVIDER: S-EPMC5992824 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature