Conservation and specificity of chromatin-remodeling complexes in plants
In eukaryotes,nucleosomes which are formed by the genomic DNA and the histone octamer wrapped around,are the basic units of chromatin.The formation of nucleosomes contributes to package genomic DNA into the limited-space nucleus.It also has a significant impact on gene expression.Chromatin-remodeling factors utilize the energy generated by ATP hydrolysis to regulate nucleosomes assembly and removal,nucleosomes sliding,and histone variant exchange,thus controlling gene expression and various biological processes.The chromatin-remodeling factors mainly include SWI/SNF,ISWI,CHD,and INO80,which primarily exists in the form of multi-subunit complexes.Recent studies have systematically identified the subunit composition and functions of plant chromatin-remodeling complexes,revealing the conservation and specificity of these complexes relative to yeast's and animal's.The molecular mechanisms of these complexes regulating gene transcription are also revealed.These findings establish the foundation for further research on the role of chromatin remodeling in plant growth,development,and stress responses.
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