SPERM PREFERENCE IN DROSOPHILA MELANOGASTER
†
Keyword(s):
Abstract A mating is described in which the females appear actively to discriminate against one of the genotypes of sperm. The males in the mating carry T(1;4)B S , and the sperm type selected against is the B S+4-bearing segregant. Prior exposure of the reproductive tract of the females to B S+4-bearing sperm seems to enhance the ability of the females to subsequently discriminate against B S+4-bearing sperm. Thus it appears that at least some females of Drosophila melanogaster do possess a mechanism whereby different types of sperm can be distinguished—the sperm preference observed in this system appears to be independent of the meiotic drive in the T(1;4)B S males.
Keyword(s):
Keyword(s):
Keyword(s):