Abstract: Through 4x-2x cross,9 lines from Solatium phureja were selected as pollinators. These pollinators had several advantages over the controls (IVP35 and IVP48) , including high frequency of dihaploid induction and pollen fertility. Their average frequency of induction was 33.0 dihap-loids/100 fruits. They also possessed a dominant embryo spot marker (BB) and a dominant seed-ing marker (PP) for purple hypocotyl. Both markers are homozygous and can be effcetively used to inentify dihaploids. There were differences in the dihaploid frequency between the maternal parents. Zhongshu 2 had the highest frequency (34.0 dihaploid/100 fruits) among three varicties. But the effects of environments on pseudogamous dihapoid production can never be neglected.

Key words: Potato, Dihaploid, Parthenogenesis, Marker gene

CLC Number: 

• S532