Integrating phylogenomic and population genomic patterns in avian lice provides a more complete picture of parasite evolution

Autor(es)

Sweet, Andrew D. ^{[1, 2]} ; Boyd, Bret M. ^{[1, 3]} ; Allen, Julie M. ^{[1, 4]} ; Villa, Scott M. ^[5] ; Valim, Michel P. ^[6] ; Rivera-Parra, Jose L. ^[7] ; Wilson, Robert E. ^[8] ; Johnson, Kevin P. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Illinois, Prairie Res Inst, Illinois Nat Hist Survey, Champaign, IL 61820 - USA

^[2] Univ Illinois, Sch Integrat Biol, Program Ecol Evolut & Conservat Biol, Champaign, IL 61820 - USA

^[3] Univ Georgia, Dept Entomol, Athens, GA 30602 - USA

^[4] Univ Florida, Florida Museum Nat Hist, Gainesville, FL 32611 - USA

^[5] Univ Utah, Dept Biol, Salt Lake City, UT 84112 - USA

^[6] Univ Iguacu, Bioterio, Av Abilio Augusto Tavora 2134, BR-26275 Rio De Janeiro, RJ - Brazil

^[7] Escuela Politec Nacl, Fac Geol & Petr, Dept Petr, Quito - Ecuador

^[8] Univ Alaska, Inst Arctic Biol, Fairbanks, AK 99775 - USA

• Tipo de documento: Artigo de Revisão
• Fonte: Evolution; v. 72, n. 1, p. 95-112, JAN 2018.
• Citações Web of Science: 5

Resumo

Parasite diversity accounts for most of the biodiversity on earth, and is shaped by many processes (e.g., cospeciation, host switching). To identify the effects of the processes that shape parasite diversity, it is ideal to incorporate both deep (phylogenetic) and shallow (population) perspectives. To this end, we developed a novel workflow to obtain phylogenetic and population genetic data from whole genome sequences of body lice parasitizing New World ground-doves. Phylogenies from these data showed consistent, highly resolved species-level relationships for the lice. By comparing the louse and ground-dove phylogenies, we found that over long-term evolutionary scales their phylogenies were largely congruent. Many louse lineages (both species and populations) also demonstrated high host-specificity, suggesting ground-dove divergence is a primary driver of their parasites' diversity. However, the few louse taxa that are generalists are structured according to biogeography at the population level. This suggests dispersal among sympatric hosts has some effect on body louse diversity, but over deeper time scales the parasites eventually sort according to host species. Overall, our results demonstrate that multiple factors explain the patterns of diversity in this group of parasites, and that the effects of these factors can vary over different evolutionary scales. The integrative approach we employed was crucial for uncovering these patterns, and should be broadly applicable to other studies. (AU)

• Processo FAPESP: 11/11420-5 - Taxonomia, sistemática e diversidade de malófagos (Insecta, Phthiraptera, Amblycera e Ischnocera) em aves (Aves) no Brasil
• Beneficiário: Michel Paiva Valim
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores