Extended reproductive roles of the fruitless gene in Drosophila melanogaster revealed by behavioral analysis of new fru mutants.
Extended reproductive roles of the fruitless gene in Drosophila melanogaster revealed by behavioral analysis of new fru mutants.
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DOI：
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发表时间：
1997-11
期刊：
影响因子：
3.3
通讯作者：
A. Villella;D. A. Gailey;Barbra Berwald;Saiyou Ohshima;P. T. Barnes;J. C. Hall
中科院分区：
文献类型：
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作者：
A. Villella;D. A. Gailey;Barbra Berwald;Saiyou Ohshima;P. T. Barnes;J. C. Hall
对无果突变体fru3和fru4进行了性别特异性生殖行为表型评估，并与之前报道的无果突变体进行了比较。在表达这些相对较新的突变的男性表现出的几种行为异常中，有些是独特的。与fru1和fru2相比，Fru3和fru4雄性向雌性求爱的刺激较小。雄性fru3和雄性fru4都不会发出求偶脉冲之歌，即使它们会短暂地伸展翅膀。Fru3和fru4雄性比fru1雄性表现出更少的连锁行为。当两种性别同时出现时，果雄性对雌性和雄性的求爱反应层次结构是，果雄性对任何一种性别都表现出强烈而不加选择地求爱；Fru4雄性也同样不分青红皂白，但求偶水平低于fru1；Fru2雄性偏爱雌性；Fru3雄性表现出对雄性的求偶偏好。fru3和fru4雄性基本上缺乏劳伦斯肌（MOL）。在一些生殖标准上，fru变异雌性和fru+之间没有差异。在fru的新兴分子遗传学和关于基因在性别决定途径中的位置的背景下，对新突变体的表型严重程度的增加进行了讨论。
The fruitless mutants fru3 and fru4 were assessed for sex-specific reproductive-behavioral phenotypes and compared to the previously reported fru mutants. Among the several behavioral anomalies exhibited by males expressing these relatively new mutations, some are unique. fru3 and fru4 males are less stimulated to court females than fru1 and fru2. No courtship pulse song is generated by either fru3 or fru4 males, even though they perform brief wing extensions. fru3 and fru4 males display significantly less chaining behavior than do fru1 males. The hierarchy of courtship responses by fru males directed toward females vs. males, when presented with both sexes simultaneously, is that fru1 males perform vigorous and indiscriminant courtship directed at either sex; fru4 males are similarly indiscriminant, but courtship levels were lower than fru1; fru2 males prefer females; fru3 males show a courtship bias toward males. fru3 and fru4 males essentially lack the Muscle of Lawrence (MOL). On several reproductive criteria, there was no difference between fru-variant females and fru+. The increases in phenotypic severity measured for the new mutants are discussed in the context of the emerging molecular genetics of fru and with regard to the gene's position within the sex-determination pathway.