Research aflvanee in the molecular biology of cytoplasmic male sterility in plants

The progress on the molecular biology of cytoplasmic male sterility in plants is summarized in this paper，including the structure，origin，action mechanism，and the out-of express of chimeric gene；the other factors which cause cytoplasmic male sterility emerging；the expression of specific gene in the development of pollen；fertility restoration；the scheme of composing cytoplasmic male sterility by gene engineering researches．