DS1/OsEMF1 interacts with OsARF11 to control rice architecture by regulation of brassinosteroid signaling.

ABSTRACT:

Background

Plant height and leaf angle are important determinants of yield in rice (Oryza sativa L.). Genes involved in regulating plant height and leaf angle were identified in previous studies; however, there are many remaining unknown factors that affect rice architecture.

Results

In this study, we characterized a dwarf mutant named ds1 with small grain size and decreased leaf angle,selected from an irradiated population of ssp. japonica variety Nanjing35. The ds1 mutant also showed abnormal floral organs. ds1 plants were insensitive to BL treatment and expression of genes related to BR signaling was changed. An F₂ population from a cross between ds1 and indica cultivar 93-11 was used to fine map DS1 and to map-based clone the DS1 allele, which encoded an EMF1-

SUBMITTER: Liu X 

PROVIDER: S-EPMC6082143 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature