Identification of physiological races and AFLP analysis in F_1 generation of sexual hybridization between isolates of Setosphaeria turcica;

Study of the sexual hybridization method for transgenic carrot with two target genes;

Yun sweet-smelling is a new variety of pear developed by sexual hybridization, sowing and primary selection, res-election, final selection in 1976, the regional test was taken at elevation 1 820-2 200 m in Yunnan province, 1995-1989.

Studies on the genetic relationship between molybdenum-containing cofactor and nitrite reductase in Fusarium moniliforme were carried out by sexual cross.

Studies on the ability of pigment formation and inheritance in Fusarium moniliforme,were carried out by asexual succeeding transfer culture and sexual cross.

Nipponbare by the way of sexual hybrid for the first time,the integration and transcribe of glucose oxidase gene was confirmed by RT-PCR analysis on shuhui 162 rice genome,it proved the GO gene can be transfered between Indica and japonica.

It is manifested that:the mother Gaxtrodia elata s different quality have obvious influence to Sexual hybridization situation which influence yield rate the difference is obvious.

Fifty sexual hybrids were obtained from 3760 single oospore isolates from pairing of two Phytophthora cactorum isolates (AP14M r 1 52 with resistance to metalaxyl and sensitivity to chloroneb, PK9Cn r 2 24 with resistance to chloroneb and sensitivity to metalaxyl) which were incubated on SL media for 36 days.