Genital coupling and copulatory wounding in Drosophila teissieri (Diptera : Drosophilidae)
Genital coupling and copulatory wounding in Drosophila teissieri (Diptera : Drosophilidae)
复制标题
果蝇 (Drosophila teissieri) 的生殖器耦合和交配损伤（双翅目：果蝇科）
DOI：
10.1139/cjz-2012-0186
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发表时间：
2012
影响因子：
1.4
通讯作者：
H
中科院分区：
文献类型：
--
作者：
Kamimura;Y.;and Mitsumoto;H
我们报道了果蝇的生殖偶联，1971年，黑腹果蝇亚群的成员。种亚群包括9个已描述的种，包括模式生物黑腹果蝇（drosophila melanogasterMeigen, 1830）。尽管对这一群体的生物学进行了大量研究，但我们对其生殖结构多样性的进化意义的理解是有限的。本研究提供的证据表明：(1)在持续41.1分钟的交配过程中，一对雄性生殖器部分（aedeagus基突的背侧分支）插入雌性生殖道后打开；(2)雌性。在它们的生殖器背面有一对口袋，接收雄性生殖器的分叉刺（aedeagus基突的腹侧分支），并且（iii）雄性生殖器部位，特别是尾毛独特的强壮的刺，在雌性生殖器的膜区造成多个交配伤口。在已确定的系统发育中。我们讨论了这些生殖结构的可能功能和进化转变。
We report genital coupling ofDrosophila teissieriTsacas, 1971, a member of theDrosophila melanogasterspecies subgroup. The species subgroup consists of nine described species including the model organismDrosophila melanogasterMeigen, 1830. Despite numerous studies on the biology of this group, our understanding of the evolutionary significance of the diversity in their genital structures is limited. This study provides evidence that (i) during the copulation, which lasts 41.1 min, a paired male genital part (dorsal branches of the basal processes of the aedeagus) open after being inserted into the female reproductive tract, (ii) femaleD. teissierihave a pair of pockets on the dorsal side of their genitalia that receive bifurcated spines of the male genitalia (ventral branches of the basal processes of the aedeagus), and (iii) male genital parts, especially unique strong spines of the cerci, cause multiple copulatory wounds on membranous areas of the female genitalia. Within the established phylogeny of theD. melanogasterspecies subgroup, we discuss possible functions of and evolutionary transitions in these genital structures.