SPR9 encodes a 60 S ribosomal protein that modulates panicle spreading and affects resistance to false smut in rice (Oryza sativa. L).

ABSTRACT:

Background

The architecture of inflorescence in crops is a key agronomic feature determining grain yield and thus has been a major target trait of cereal domestication.

Results

In this study, we show that a simple spreading panicle change in rice panicle shape, controlled by the Spreading Panicle 9 (SPR9) locus, also has a significant impact on the resistance to rice false smut (RFS). Meanwhile, we mapped a novel spr9 mutant gene between markers Indel5-18 and Indel5-22 encompassing a genomic region of 43-kb with six candidate genes. Through gene prediction and cDNA sequencing, we confirmed that LOC_Os05g38520 is the target gene in the spr9 mutant, which encodes 60 S ribosomal protein L36-2. Further analysis showed that the spr9 mutant is caused by a 1 bp deletion in the firs

SUBMITTER: He N 

PROVIDER: S-EPMC10116690 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature