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Genetic differences among Anopheles vestitipennis subpopulations collected using different methods in Chiapas state, southern México.

J I Arredondo-Jiménez·J Gimnig·M H Rodríguez·R K Washino
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Abstract

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.

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AllelesAnimalsAnophelesCattleHumansInsect Bites and StingsIsoenzymesMexicoJournal ArticleResearch Support, Non-U.S. Gov't

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J I Arredondo-Jiménez, J Gimnig, M H Rodríguez, R K Washino. 1996. Genetic differences among Anopheles vestitipennis subpopulations collected using different methods in Chiapas state, southern México.. https://pubmed.ncbi.nlm.nih.gov/8887216/

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