The relationship between morphology and flight in Drosophila:a study of two pairs of sibling species from a natural population  

作　　者：Nicolás Flaibani Victoría Estefania Ortiz Juan JoséFanara Valeria Paula Carreira 

机构地区：[1]Laboratorio de Evolucion,Departamento de Ecologia,Genética y Evolucion(DEGE),Facultad de Ciencias Exactas y Naturales(FCEN),Universidad de Buenos Aires(UBA),Instituto de Genética,Ecologia y Evolucion de Buenos Aires(IEGEBA),Consejo Nacional de Investigaciones Cientificasy Tecnicas(CONICET)-UBA,Buenos Aires,Argentina

出　　处：《Insect Science》2024年第3期885-900,共16页昆虫科学（英文版）

基　　金：supported by funding of Agencia Nacional de Promocion Cientifica y Tecnologica granted to V.PC.(PICT-2018-00753 and PICT-2015-0277)and to JJF(PICT-2016-2256).

摘　　要：Insect flight is a complex trait involved in different behaviors,from the search for sexual partners,food,or breeding sites.Many studies have postulated the adaptive advantages of certain morphological traits in relation to increased flight capacity,such as low values of wing loading or high values of wing:thorax ratio and wing-aspect ratio.However,few studies have evaluated the relationship between variables related to flight and morphological traits in Drosophila.This work aimed to study morphological traits in males and females of two pairs of sibling species:Drosophila buzzati Patterson and Wheeler-Drosophila koeferae Fontdevila and Wasserman,and Drosophila melanogaster Meigen-Drosophila simulans Sturtevant,and to analyze its relationship with flight.We detected the highest proportion of flight time in D.koepferae and D.simulans compared to D.buzzati and D.melanogaster,respectively.Our results also revealed sexual dimorphism,with males exhibiting a higher proportion of flight time than females.Surprisingly,we did not find a general pattern to explain the relationship between morphology and the proportion of flight time because associations varied depending upon the analyses(considering all groups together or each sex-species combination separately).Moreover,these associations explained a low percentage of variation,suggesting that other nonmorphological components related to flight,such as physiological variables,should be taken into account.This work allowed us to show the variability and complexity of an aspect of flight,suggesting that the adaptive role of the morphological traits studied might have been overestimated.

关 键 词：morphological traits time in flight wing loading wing:thorax ratio wingaspect ratio wing second moment of area 

分 类 号：Q96[生物学—昆虫学]