Arredondo-Jiménez J I, Gimnig J, Rodríguez M H, Washino R K
Centro de Investigación de Paludismo, C.I.S.E.I., Instituto Nacional de Salud Pública, Chiapas, México.
J Am Mosq Control Assoc. 1996 Sep;12(3 Pt 1):396-401.
Biting activity and population genetic studies of the malaria vector Anopheles vestitipennis were conducted in southern México. Three subpopulations were collected from 2 villages; 2 subpopulations were from the same village, one on human bait and one with an animal-baited trap; the third was collected from a cattle corral in the 2nd village (280 km away SSE). The anthropophilic subpopulation had steady activity with 61% of bites occurring before midnight, significantly different from those of the 2 zoophilic subpopulations, which had 78-82% of bites before midnight and 2 biting peaks, one at 1900-2100 h and the other at 0400-0500 h. Isozyme analysis (13 enzymes) of these subpopulations indicated that differences between the 2 sympatric subpopulations (D = 0.07), collected using 2 different methods, were greater than that between the 2 allopatric ones (D = 0.03). These studies suggest the existence of 2 genetically different subpopulations of An. vestitipennis with specific host preferences.
在墨西哥南部对疟疾媒介饰腹按蚊进行了叮咬活动和种群遗传学研究。从两个村庄采集了三个亚种群；其中两个亚种群来自同一个村庄，一个是用人饵诱捕的，另一个是用动物饵诱捕器诱捕的；第三个亚种群是从第二个村庄（东南偏南280公里处）的一个牛栏采集的。嗜人亚种群活动稳定，61%的叮咬发生在午夜前，这与两个嗜动物亚种群显著不同，嗜动物亚种群78 - 82%的叮咬发生在午夜前，有两个叮咬高峰，一个在1900 - 2100时，另一个在0400 - 0500时。对这些亚种群进行的同工酶分析（13种酶）表明，使用两种不同方法采集的两个同域亚种群之间的差异（D = 0.07）大于两个异域亚种群之间的差异（D = 0.03）。这些研究表明存在两个遗传上不同的饰腹按蚊亚种群，它们具有特定的宿主偏好。
