Phylogeography and historical demography of Sicydium salvini in the eastern Pacific

Autor:	Ryan Chabarria, Frank Pezold
Rok vydání:	2013
Předmět:	education.field_of_study Panmixia biology Ecology Range (biology) Population Goby biology.organism_classification Phylogeography Genetic structure Sicydiinae education Ecology Evolution Behavior and Systematics Sicydium
Zdroj:	Ichthyological Research. 60:353-362
ISSN:	1616-3915 1341-8998
DOI:	10.1007/s10228-013-0363-x
Popis:	Amphidromy, characterized by freshwater adult and marine larval stages, has been shown to be an important influence on the genetic structure of aquatic populations. Sicydium salvini is a widespread goby species (Teleostei: Gobiidae: Sicydiinae) in the eastern Pacific with a continuous distribution from Mexico to Panama. Here, we use mitochondrial data to infer population genetic and historical demography of this species. Sequences were collected for the mitochondrial gene cytochrome b for 162 specimens sampled across the range of S. salvini with a concentration on rivers in Costa Rica. No genetic structure was detected between regions or rivers in the AMOVA analysis; the phylogeny for this species showed no geographic affinities and very little resolution. Historical demographic analyses indicated a population expansion during the late Pleistocene. These results are consistent with a panmictic population with expansion influenced strongly by Pleistocene glacial cycles and geologic uplift.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c5088be9ad93c86cd047595c2d68ce60 https://doi.org/10.1007/s10228-013-0363-x Zobrazit plný text záznamu Plný text ve formátu PDF