Estrada-Franco J G, Ma M C, Gwadz R W, Sakai R, Lanzaro G C, Laughinghouse A, Galvan-Sanchez C, Cespedes J L, Vargas-Sagarnaga R
Department of Entomology, University of Maryland, College Park.
Am J Trop Med Hyg. 1993 Dec;49(6):746-55. doi: 10.4269/ajtmh.1993.49.746.
Crossmating experiments were conducted to determine if postmating reproductive barriers are involved in the maintenance of genetic divergence among populations of Anopheles pseudopunctipennis sensu lato, a primary malaria vector of the American continent. Reciprocal crosses were conducted between colony and wild strains from Mexico, Bolivia, and Peru. Hybridization experiments revealed unidirectional male/female hybrid sterility in crosses between Mexican females and South American males. The data presented provide the first evidence that genetic differences exist among geographic strains of An. pseudopunctipennis in neotropical America. There is a consistent pattern suggesting the presence of at least two allopatric sibling species. One species occurs in central Mexico, the other in the South American Andean Cordillera.
进行了杂交实验，以确定交配后生殖障碍是否参与维持美洲主要疟疾媒介——伪点按蚊复合组种群之间的遗传分化。在来自墨西哥、玻利维亚和秘鲁的群体和野生菌株之间进行了正反交。杂交实验揭示了墨西哥雌性和南美雄性杂交时存在单向的雄性/雌性杂种不育。所呈现的数据首次证明了新热带美洲的伪点按蚊地理菌株之间存在遗传差异。有一个一致的模式表明至少存在两个异域分布的姐妹种。一个物种出现在墨西哥中部，另一个出现在南美洲安第斯山脉。
