光温敏核不育基因的等位性研究

选用培矮６４Ｓ（代表农垦５８Ｓ）、安农Ｓ－１、衡农Ｓ－１、５４６０Ｓ、新光Ｓ等５种光温敏核不育系，于１９９５年在海南春季可育期内互交，夏季在合肥种植，以花粉败育率、套袋结实率、自然结实率为育性指标，进行核不育基因等位性研究，结果表明：培矮６４Ｓ、安农Ｓ－１、衡农Ｓ－１、５４６０Ｓ的核不育基因位点互不等位，新光Ｓ与培矮６４Ｓ基因位点相同。另选用农垦５８Ｓ转育成的一批籼粳不育系，以培矮６４Ｓ为桥梁亲本，粳型不育系直接与农垦５８Ｓ配组，籼型不育系与培矮６４Ｓ配组，研究方法同上，结果表明参试的不育系均与农垦５８Ｓ等位

Studies On Allelic Relationshop Among Photo Thermo sensitive Genetic Male Sterility (PTGMS) lines

Five types of PTGMS Peiai 64S, AnnongS 1, HengnongS 1, 5460S and XingguangS were crossed with each other in Hainan in spring in 1995. The lines and croses were planted in Hefei in summer season. Reciprocal croses indicated that PTGMS gene among Peiai 64S, AnnongS 1, HengnongS 1, and 5460S was not allelic but between Peiai 64S and XingguangS was allelic according to their fertility. There were also a lot of tested PTGMS lines resulting from Nongken 58S. The japonica PTGMS lines were directedly crossed with japonica Nongken 58S and the indica PTGMS lines were indirectedly crossed with Peiai 64S. The result showed the tested PTGMS line gene resulting from Nongken 58S were all allelic.