Phytogeographic patterns and cryptic diversity in an aposematic toad from NW Argentina
| Autor: | Rute B G Clemente-Carvalho, Marcos Vaira, Daria Koscinski, Laura E. King, Maria Ines Bonansea, Stephen C. Lougheed |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
0301 basic medicine Range (biology) Otras Ciencias Biológicas Argentina NEOTROPICS Aposematism Subspecies 010603 evolutionary biology 01 natural sciences PHYLOGEOGRAPHY Predation Ciencias Biológicas 03 medical and health sciences Genetic variation Genetics Animals ANDES MOUNTAINS Molecular Biology Phylogeny Ecology Evolution Behavior and Systematics biology Pigmentation Ecology ANURANS Genetic Variation Bayes Theorem Biodiversity 15. Life on land biology.organism_classification Bufonidae Phylogeography 030104 developmental biology Melanophryniscus rubriventris Sexual selection CIENCIAS NATURALES Y EXACTAS |
| Zdroj: | Molecular Phylogenetics and Evolution. 116:248-256 |
| ISSN: | 1055-7903 |
| Popis: | The Yungas Redbelly Toad, Melanophryniscus rubriventris, is patchily distributed in Argentina, confined to the upland portion (1000 to 2000 meters above sea level) of the montane forests of northern and central regions of Salta, and in central-eastern and south-eastern Jujuy. This species is known for its striking aposomatic color variation across its geographic distribution, and was once treated as a complex of three subspecies based on distinctive color patterns. Here we assess the genealogical relationships within M. rubriventris and quantify divergence in color and pattern among individuals sampled from Northwestern Argentina. We compare a multi-gene genealogy of M. rubriventris to patterns of dorsal and ventral coloration to test whether evolutionaryaffinities predict variation in warning color. Our results reveal two well-supported clades: one confined to the extreme northern portion of our sampling area, and the other extending over most of the Argentine portion of the species? range, within which there are two subclades. However, these well-supported evolutionary relationships do not mirror the marked variation in warning coloration. This discordance between DNA genealogy and warning color variation may reflect selection brought about by differences in local predation pressures, potentially coupled with effects of sexual selection and thermoregulation. Fil: Clemente-Carvalho, Rute. Queens University; Canadá Fil: Vaira, Marcos. Universidad Nacional de Jujuy. Facultad de Ciencias Agrarias. Instituto de Ecorregiones Andinas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico CONICET - Salta. San Salvador de Jujuy; Argentina Fil: King, Laura. Queens University; Canadá Fil: Koscinski, Daria. Queens University; Canadá Fil: Bonansea, Maria Ines. Universidad Nacional de Jujuy. Facultad de Ciencias Agrarias; Argentina Fil: Lougheed, Stephen. Queens University; Canadá |
| Databáze: | OpenAIRE |
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