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“Colonization routes and demographic history of Chirostoma humboldtianum in the central Mexican plateau”
Author(s) -
GarcíaMartínez Rosa María,
Angeles BarrigaSosa Irene,
López Benjamín,
Mejía Omar
Publication year - 2020
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/jfb.14462
Subject(s) - colonization , biology , phylogeography , microsatellite , approximate bayesian computation , mitochondrial dna , haplotype , demographic history , population , mtdna control region , evolutionary biology , plateau (mathematics) , effective population size , population size , zoology , ecology , genetics , demography , genotype , phylogenetics , genetic variation , allele , gene , sociology , mathematical analysis , mathematics
In the present study we evaluate the population structure and potential colonization routes of the silverside Chirostoma humboldtianum through approximate Bayesian computations . Six microsatellite loci were amplified in a total of 288 individuals from six different locations covering the complete geographic distribution of the species. Additionally, two mitochondrial DNA markers, a D loop control region and cytochrome b were amplified in a subset of 107 individuals. The results found with microsatellites allow recovering well‐structured populations that have experienced a drastic reduction in the effective population size. On the other hand, mtDNA sequences showed a moderate phylogeographic structure with shared haplotypes between geographic localities and signalsof a slight increase in the effective population size. Finally, the approximate Bayesian computation analysis performed with both datasets suggested a west‐to‐east colonization route for the species in Central Mexico.