Urbanization drives adaptive evolution in a Neotropical bird  

作　　者：Rilquer Mascarenhas Pedro Milet Meirelles Henrique Batalha-Filho 

机构地区：[1]National Institute of Science and Technology in Interdisciplinary and Transdisciplinary Studies in Ecology and Evolution(INCT IN-TREE),Instituto de Biologia,Universidade Federal da Bahia,40170-115 Salvador,Bahia,Brazil

出　　处：《Current Zoology》2023年第5期607-619,共13页动物学报（英文版）

基　　金：We would like to thank the following organizations for providing funds for this study:FAPESB(RED0045/2014,JCB0026/2016);CNPq(443249/2014-8,465767/2014-1);CAPES(23038.000776/2017-54).

摘　　要：Urbanization has dramatic impacts on natural habitats and such changes may potentially drive local adaptation of urban populations.Behavioral change has been specifically shown to facilitate the fast adaptation of birds to changing environments,but few studies have investigated the genetic mechanisms of this process.Such investigations could provide insights into questions about both evolutionary theory and management of urban populations.In this study,we investigated whether local adaptation has occurred in urban populations of a Neotropical bird species,Coereba flaveola,specifically addressing whether observed behavioral adaptations are correlated to genetic signatures of natural selection.To answer this question,we sampled 24 individuals in urban and rural environments,and searched for selected loci through a genome-scan approach based on RADseq genomic data,generated and assembled using a reference genome for the species.We recovered 46 loci as putative selection outliers,and 30 of them were identified as associated with biological processes possibly related to urban adaptation,such as the regulation of energetic metabolism,regulation of genetic expression,and changes in the immunological system.Moreover,genes involved in the development of the nervous system showed signatures of selection,suggesting a link between behavioral and genetic adaptations.Our findings,in conjunction with similar results in previous studies,support the idea that cities provide a similar selective pressure on urban populations and that behavioral plasticity may be enhanced through genetic changes in urban populations.

关 键 词：behavioral adaptation phenotypic plasticity selection selective sweep South America 

分 类 号：Q95[生物学—动物学]