Phylogeography and historical demography of Sicydium salvini in the eastern Pacific
A cura di Chabarria, Ryan E, Frank L Pezold
Ichthyological Research, 1-10 04-set-2013. DOI: 10.1007/s10228-013-0363-x
" 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 "
Classificazione: Distribuzione ed esplorazione.
Lingua: English
Reference in bibliography for species (2)
Nome sostituzioni
- Sicydium salvini denominato come Sicydium salvini, Sicydium multipunctatum.
Chabarria, Ryan E & Frank L Pezold. 2013. "Phylogeography and historical demography of Sicydium salvini in the eastern Pacific". Ichthyological Research. 1-10. DOI: 10.1007/s10228-013-0363-x (ffm01162) (riassunto)