Trpis M
Tropenmed Parasitol. 1977 Mar;28(1):77-82.
Autogeny in Aedes aegypti was found in many diverse populations throughout the range of East Africa. Degree of autogeny is proposed to be measured either by a relative method using an autogeny index (AIX), or by direct count of eggs in dissected ovaries and expressed in percentage. Degree of autogeny varied from population to population but it was always higher in the dark feral Ae. aegypti formosus than in the domestic Ae. aegypti aegypti form. The highest degree of autogeny occurred in the dark form frm Uganda, where in some populations it was as high as 34%. Some autogenous females have a tendency to retain fully developed eggs in their ovaries up to 4 weeks for later oviposition. At the beginning of oogenesis, the autogenous females deposit yolk granuli in many follicles. As soon as the follicles reach the resting stage, translocation of yolk from many to few follicles takes place. The number of eggs developed autogenously depends on the level of nutritional reserves carried by the females from the larval stage. Autogeny could possible serve as one of the preservation mechanisms of haematophagous species when hosts are not available. The vectorial capacity of autogenous populations of Ae. aegypti for transmission of pathogens is substantially lower than anautogenous ones because of their nonhaematophagous feeding behavior at the first gonotrophic cycle and shorter survival of females.
在东非广大区域的许多不同种群埃及伊蚊中都发现了自体生殖现象。自体生殖程度建议通过使用自体生殖指数（AIX）的相对方法来衡量，或者通过直接计数解剖卵巢中的卵并以百分比表示。自体生殖程度因种群而异，但在深色野生型埃及伊蚊formosus中总是高于家养型埃及伊蚊aegypti。自体生殖程度最高的是来自乌干达的深色型，在一些种群中高达34%。一些自体生殖的雌蚊倾向于在卵巢中保留完全发育的卵长达4周以便日后产卵。在卵子发生开始时，自体生殖的雌蚊在许多卵泡中沉积卵黄颗粒。一旦卵泡进入静止期，卵黄就会从多个卵泡转移到少数卵泡中。自体生殖发育的卵的数量取决于雌蚊从幼虫阶段携带的营养储备水平。当宿主不可用时，自体生殖可能作为吸血物种的一种保存机制。埃及伊蚊自体生殖种群传播病原体的媒介能力大大低于非自体生殖种群，因为它们在第一个生殖营养周期的非吸血摄食行为以及雌蚊较短的生存期。
