Extended reproductive roles of the fruitless gene in Drosophila melanogaster revealed by behavioral analysis of new fru mutants.

摘要: The fruitless mutants fru3 and fru4 were assessed for sex-specific reproductive-behavioral phenotypes compared to the previously reported fru mutants. Among several behavioral anomalies exhibited by males expressing these relatively new mutations, some are unique. less stimulated court females than fru1 fru2. No courtship pulse song is generated either or males, even though they perform brief wing extensions. display significantly chaining behavior do males. hierarchy of responses directed toward vs. when presented with both sexes simultaneously, that vigorous indiscriminant at sex; similarly indiscriminant, but levels lower fru1; fru2 prefer females; show a bias essentially lack Muscle Lawrence (MOL). On reproductive criteria, there was no difference between fru-variant fru+. increases in phenotypic severity measured discussed context emerging molecular genetics regard gene's position within sex-determination pathway.