Characterization and Gene Mapping of an Open-Glume L. Mutant

Overview

Journal Int J Mol Sci

Publisher MDPI

Specialties Biochemistry
Chemistry
Molecular Biology

Date 2023 Aug 26

PMID 37628883

Authors

Xingxue Mao

Xiaoyu Zheng

Wenfeng Chen

Chen Li

Affiliations

Soon will be listed here.

Abstract

Floral organ development determines agricultural productivity by affecting seed development, seed quality, and final yield. In this study, we described the novel mutant in rice ( L.), which is characterized by an open-glume phenotype, increased pistil number, reduced stamen number, decreased seed setting rate, and smaller rice grains. Genetic analysis showed that the open-glume phenotype might be controlled by a recessive qualitative trait locus. Employing bulked segregant analysis (BSA), one candidate region was identified on rice chromosome 1. The glume opening phenotype cosegregated with SNP (Chr1:1522703), which was located at the start codon of one transcript of , resulting in partial loss of function. cDNA analysis revealed that encodes two transcript variants. Compared to normal plants, the expression of was upregulated in open-glume plants. When investigating the glume phenotype, we found that the expression of genes related to floral development changed greatly in open-glume plants. Taken together, this work increases our understanding of the developmental role of in rice floral development.

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