Abstract:

Utilization of male sterility for hybrid breeding will be an effective way to increase soybean yield. There are three kinds of male sterility in soybean, i.e. genic male sterility, photoperiod-thermo-sensitive genic male sterility, and cytoplasmic-genetic (cytoplasmic) male sterility (CMS). So far, only CMS is the practicable system for soybean hybrid breeding. In this paper, the discovery of soybean CMS was firstly reviewed, followed by the summary of the development and application of tree-lines system and the key technologies used for this system. Mechanisms on the cytology, molecular biology and proteomics were then subsequently summarized. At last, the authors propose that collaborative researches among different institutes, including but not limited to the reasonable exchanging of CMS materials will greatly facilitates the mechanism researches of soybean CMS.