Analysis of QTL for Grain Size in a Rice Chromosome Segment Substitution Line Z1392 with Long Grains and Fine Mapping of qGL-6.

Ting ZhangShiming WangShuangfei SunYi ZhangJuan LiJing YouTian SuWenbo ChenYinghua LingGuanghua HeFangming Zhao

Published in: Rice (New York, N.Y.) (2020)

Inheritance of grain length in the triple-segment substitution line Z1392 is mainly controlled by two major QTLs, qGL-5 and qGL-6. qGL-6 was found to be located in a 1.26 Mb region on chromosome 6, and OsARF19 may be its candidate gene. A positive epistatic interaction between qGL-5 and qGL-6 results in longer grains. The present results can be used to facilitate cloning of the qGL-5 and qGL-6 genes and contribute to improvement of grain yield in rice.

Keyphrases

copy number
genome wide
gene expression
air pollution