Genetic Male-Sterility in Tetraploid Sorghum Improvement

Abstract

The genetic male-sterility ms3 gene of Coes variety was successfully incorporated in tetraploid sorghum. Segregation results showed that the gene is located close to the kinetochore, and that it is not frequently involved in crossovers. Attempts were initiated to introduce genetic male-sterility into tetraploid breeding populations. Breeding methods that might accelerate tetraploid sorghum improvement are suggested.