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OsMADS58 Stabilizes Gene Regulatory Circuits during Rice Stamen Development. | LitMetric

AI Article Synopsis

Article Abstract

Rice () OsMADS58 is a C-class MADS box protein, and characterization of a transposon insertion mutant suggested that OsMADS58 plays a role in stamen development. However, as no null mutation has been obtained, its role has remained unclear. Here, we report that the CRISPR knockout mutant exhibits complex altered phenotypes, including anomalous diploid germ cells, aberrant meiosis, and delayed tapetum degeneration. This CRISPR mutant line exhibited stronger changes in expression of OsMADS58 target genes compared with the dSpm (transposon insertion) line, along with changes in multiple pathways related to early stamen development. Notably, transcriptional regulatory circuits in young panicles covering the stamen at stages 4-6 were substantially altered in the CRISPR line compared to the dSpm line. These findings strongly suggest that the pleiotropic effects of OsMADS58 on stamen development derive from a potential role in stabilizing gene regulatory circuits during early stamen development. Thus, this work opens new avenues for viewing and deciphering the regulatory mechanisms of early stamen development from a network perspective.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9658454PMC
http://dx.doi.org/10.3390/plants11212899DOI Listing

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