A Review of Fertility Stability in Male Sterility for Soybean

The fertility stability in male sterility for soybean is a key subject for its heterosis utilization. In this review,the influence factor of fertility stability in nuclear male sterility and cytoplasmic-nuclear male sterility for soybean are reviewed in details. In nuclear male sterility,male sterile lines controlled by a single recessive locus are stable,but individual sterile lines exception,such as ms8,ms9 are affected by the photoperiod and temperature. Partial male sterile lines or incomplete male sterile lines that are controlled by nuclear genes are instable,such as P2,MSP,Arkansas mutant and so on,when photoperiod and temperature change,fertility will also change. Photo-thermo sensitive male sterile lines of soybean 88-428BY-827,whoes fertility is controlled by day length,which is male sterile under day length from 13. 5 to 14. 0 h·d- 1,and male fertile under day length from 14. 5 to 15. 2 h·d- 1,For cytoplasmic male sterility,RN type cytoplasmic male sterile lines,found that most sterile lines are stable,individual fertility of male sterile line is affected by light and temperature. N8855 cytoplasmic male sterile line NJCMS1A's fertility is stable under different environmental conditions. Fertility of M cytoplasmic male sterile line is stable under different light and temperature conditions. The related reports of the latter two types male sterile lines only were studied through individual male sterile lines. Further research has not been done in sterile lines that have same cytoplasmic but different nuclear. The importance of fertility stability and its prospect for soybean were also discussed.