Christe Rafael de Oliveira, Wilke André Barretto Bruno, Vidal Paloma Oliveira, Marrelli Mauro Toledo
São Paulo Institute of Tropical Medicine, University of São Paulo. Av. Dr.Enéas de Carvalho Aguiar, 470, São Paulo, SP, Brazil.
Department of Epidemiology, School of Public Health, University of São Paulo. Av. Dr. Arnaldo 715, São Paulo, SP, Brazil.
Infect Genet Evol. 2016 Nov;45:434-436. doi: 10.1016/j.meegid.2016.10.007. Epub 2016 Oct 13.
Culicidae mosquitoes are important vectors of pathogens; however, males and females have different responses to selective pressures, leading to distinct evolutionary outcomes. A better understanding of this phenomenon is crucial to establish effective control strategies for this mosquito. Although Aedes fluviatilis is considered a secondary vector for several diseases, there is a dearth of data about its ecology, population structure and sexual dimorphism. The goal of this study was therefore to assess sexual dimorphism patterns in Aedes fluviatilis. Wings from males and females were analyzed both by geometric morphometrics. Pairwise cross-validated reclassification tests indicated significant sexual dimorphism between specimens from each gender. Canonical variation analysis showed significant morphometrical differences between genders, indicating that sexual dimorphism might be a result of evolutionary pressures in this species and may be useful when developing control strategies for this mosquito.
蚊科蚊子是病原体的重要传播媒介；然而，雄性和雌性对选择压力有不同的反应，导致了不同的进化结果。更好地理解这一现象对于制定针对这种蚊子的有效控制策略至关重要。虽然黄热病伊蚊被认为是几种疾病的次要传播媒介，但关于其生态学、种群结构和两性异形的数据却很匮乏。因此，本研究的目的是评估黄热病伊蚊的两性异形模式。通过几何形态计量学对雄性和雌性的翅膀进行了分析。成对交叉验证重新分类测试表明，来自每个性别的标本之间存在显著的两性异形。典型变量分析显示两性之间存在显著的形态计量差异，表明两性异形可能是该物种进化压力的结果，并且在制定针对这种蚊子的控制策略时可能会有所帮助。
