[Sequence variation of the chloroplast gene ndh D region in cytoplasmic male sterile sorghum].

A fragment SAAU-02(700) was amplified specifically from total DNA of seven sorghun varieties with male-fertile cytoplasm (N-cytoplasm). PCR assays indicated that it was amplified from chloroplast (cp) DNA. Sequence analysis revealed this newly cloned fragment contained a portion of chloroplast gene psa C (88 bp) and part of ndh D gene (192 bp).