Molecular systematics and biogeography of lowland antpittas (Aves, Grallariidae): The role of vicariance and dispersal in the diversification of a widespread Neotropical lineage

Autor(es)

Carneiro, Lincoln ^{[1, 2]} ; Bravo, Gustavo A. ^{[3, 4, 5, 6]} ; Aristizabal, Natalia ^{[7, 5, 6]} ; Cuervo, Andres M. ^{[5, 6, 8]} ; Aleixo, Alexandre ^[1]

Afiliação do(s) autor(es)

^[1] Museu Paraense Emilio Goeldi, Coordenacao Zool, Caixa Postal 399, BR-66040170 Belem, Para - Brazil

^[2] Univ Fed Para, Museu Paraense Emilio Goeldi, Curso Posgrad Zool, Belem, Para - Brazil

^[3] Harvard Univ, Museum Comparat Zool, Cambridge, MA 02138 - USA

^[4] Harvard Univ, Dept Organism & Evolutionary Biol, Cambridge, MA 02138 - USA

^[5] Louisiana State Univ, Museum Nat Sci, Baton Rouge, LA 70803 - USA

^[6] Louisiana State Univ, Dept Biol Sci, Baton Rouge, LA 70803 - USA

^[7] Univ Sao Paulo, Inst Biociencias, Dept Ecol, BR-05508900 Sao Paulo, SP - Brazil

^[8] Inst Invest Recursos Biol Alexander von Humboldt, Villa De Leyva - Colombia

• Tipo de documento: Artigo Científico
• Fonte: Molecular Phylogenetics and Evolution; v. 120, p. 375-389, MAR 2018.
• Citações Web of Science: 3

Resumo

We infer phylogenetic relationships, divergence times, and the diversification history of the avian Neotropical antpitta genera Hylopezus and Myrmothera (Grallariidae), based on sequence data (3,139 base pairs) from two mitochondrial (ND2 and ND3) and three nuclear nuclear introns (TGFB2, MUSK and FGB-I5) from 142 individuals of the 12 currently recognized species in Hylopezus and Myrmothera and 5 outgroup species. Phylogenetic analyses recovered 19 lineages clustered into two major clades, both distributed in Central and South America. Hylopezus nattereri, previously considered a subspecies of H. ochroleucus, was consistently recovered as the most divergent lineage within the Grallaricula/Hylopezus/Myrmothera clade. Ancestral range estimation suggested that modern lowland antpittas probably originated in the Amazonian Sedimentary basin during the middle Miocene, and that most lineages within the Hylopezus/Myrmothera clade appeared in the Plio-Pleistocene. However, the rate of diversification in the Hylopezus/Myrmothera clade appeared to have remained constant through time, with no major shifts over the 20 million years. Although the timing when most modern lineages of the Hylopezus/Myrmothera clade coincides with a period of intense landscape changes in the Neotropics (Plio-Pleistocene), the absence of any significant shifts in diversification rates over the last 20 million years challenges the view that there is a strict causal relationship between intensification of landscape changes and cladogenesis. The relative old age of the Hylopezus/Myrmothera clade coupled with an important role ascribed to dispersal for its diversification, favor an alternative scenario whereby long-term persistence and dispersal across an ever-changing landscape might explain constant rates of cladogenesis through time. (AU)

• Processo FAPESP: 12/50260-6 - Estruturação e evolução da biota amazônica e seu ambiente: uma abordagem integrativa
• Beneficiário: Lúcia Garcez Lohmann
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Temático