Biology of two larval morphological phenotypes of Aedes aegypti in Abidjan, Cote d'Ivoire

被引:0
作者
Guindo-Coulibaly, N. [1 ]
Diakite, N. R. [1 ]
Adja, A. M. [1 ,2 ]
Coulibaly, J. T. [1 ,3 ,4 ]
Bassa, K. F. [1 ]
Konan, Y. L. [5 ]
N'Goran, K. E.
机构
[1] Univ Felix Houphouet Boigny, Unite Format & Rech Biosci, 22 BP 582, Abidjan, Cote Ivoire
[2] Inst Natl St Publ, Inst Pierre Richet, 01 BP 1500 Bouake, Bouake, Cote Ivoire
[3] Ctr Suisse Rech Sci, Dept Environm & Sante, 01 BP 1303 Abidjan 01, Abidjan, Abidjan, Cote Ivoire
[4] Swiss Trop & Publ Hlth Inst, Dept Epidemiol & Publ Hlth, CH-4002 Basel, Switzerland
[5] Inst Natl Hyg Publ, Serv Lutte Antivectorielle, BP V 14, Abidjan, Cote Ivoire
关键词
Aedes aegypti; brown larvae; white larvae; biology; Abidjan; Cote d'Ivoire; COLOR POLYMORPHISM; YELLOW-FEVER; DENGUE; MAINTENANCE; POPULATIONS; CULICIDAE; MOSQUITO; DIPTERA;
D O I
10.1017/S0007485317001109
中图分类号
Q96 [昆虫学];
学科分类号
摘要
Since 2008, several outbreaks of yellow fever and dengue occurred in Abidjan, the economic capital of Cote d'Ivoire. A better knowledge of the biology of Aedes aegypti populations, the main vector of yellow fever and dengue viruses, is necessary to tailor vector control strategies implemented, in the city. This study was designed to determine some biological parameters, occurring during the life cycle of two morphological phenotypes of Ae. aegypti larvae. Mosquitoes were sampled in a suburb of Abidjan (Treichville) using the WHO layer-traps technique. Biological parameters were studied in laboratory under standard conditions of temperature (27 degrees C +/- 2 degrees C) and relative humidity (80% +/- 10%). Our results indicated that the mean eggs laid by females from 'brown larvae' (BL) (85.95,95% confidence interval (CI 95%) 78.87-93.02) was higher than those from 'white larvae' (WL) (64.40%, CI 95% 55.27-73.54). The gonotrophic cycle was 3 and 4 days in females from BL and WL, respectively. The overall yield of breeding mosquitoes from BL (63.88%, CI 95% 62.61-65.14) was higher compared with those of mosquitoes from WL (59.73%, CI 95% 58.35-61.12). The sex ratio (male/female) was 0.95 and 1.68 in Ae. aegypti populations from BL and WL, respectively. Females from BL lived slightly longer than those from WL (t = -2.332; P = 0.021). This study shows that Ae. Aegypti populations from BL and WL present different biological parameters during their life cycle. This could have an implication on their ability to transmit human disease viruses such as dengue and yellow fever. Further molecular studies are needed to determine genetic divergence between these Ae. aegypti populations.
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页码:540 / 546
页数:7
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