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Author Mao X., Zheng X., Chen W., Li C.
Title Characterization and Gene Mapping of an Open-Glume <i>Oryza sativa</i> L. Mutant.
Abstract:
Floral organ development determines agricultural productivity by affecting seed development, seed quality, and final yield. In this study, we described the novel <i>ogl</i> mutant in rice (<i>Oryza sativa</i> 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 <i>OsJAG</i>, resulting in partial loss of <i>OsJAG</i> function. cDNA analysis revealed that <i>OsJAG</i> encodes two transcript variants. Compared to normal plants, the expression of <i>OsJAG.1</i> 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 <i>OsJAG</i> in rice floral development.
Journal Int J Mol Sci
Country China
Volume 24(16)
Pages
Year 2023
PubMed ID 37628883
PubMed Central ID 10454609
DOI 10.3390/ijms241612702
URL -
Relation
Gene DL MADS13 MADS22 MADS57 MFO1 PAP2 RAP1A RAP1B REP1 SL1 SNB
INSD -
Strain Wild Core Collection -
Induced Mutation Lines(NIG Collection) -
Sterile Seed Strain -
Lethal Embryo
Mutantion Strain 		-
Stages in Each Organ
- Muant Lines (Gene) 		-
Cultivated Varieties(NIG Collection) -
Stages in Each Organ -
/rice/oryzabase