Related Experiment Video
Updated: Aug 16, 2026

Basic Methods for the Study of Reproductive Ecology of Fish in Aquaria
Published on: July 20, 2017
Evolutionary history, population genetics, and gene flow in the common rosefinch (Carpodacus erythrinus)
Alexandra Pavlova1, Robert M Zink, Sievert Rohwer
1Bell Museum of Natural History and Department of Ecology, Evolution and Behavior, University of Minnesota, St. Paul, MN 55108, USA.
Abstract:
We analyzed sequences of two mitochondrial DNA gene regions (control region and ND2) from 186 specimens obtained from 17 Eurasian localities covering most of the distribution of the common rosefinch to assess phylogeographic structure. Populations possessed a high level of nucleotide diversity relative to many other Palearctic species, suggesting that rosefinch populations are relatively old and possess high effective sizes. Mismatch distributions suggested that many localities experienced past population expansions, which are older than those expected for post-Pleistocene climate warming and reforestation of Eurasia. Our Phi(st) analysis revealed that 12.4% of total genetic variation was distributed among localities owing in part to the existence of three incompletely isolated groups: southwestern (subspecies C. e. kubanensis), northeastern (subspecies C. e. grebnitskii), and northwestern (subspecies C. e. erythrinus and C. e. ferghanensis). The three groups are not reciprocally monophyletic which suggests that they were formed relatively recently. Gene flow among groups is restricted. Coalescence analysis indicated dispersal asymmetry.
Related Concept Videos
Gene Flow
Mutation, Gene Flow, and Genetic Drift
Population Growth
Genetics of Speciation
Gene Evolution - Fast or Slow?
In contrast, regions which code...
Hardy-Weinberg Principle

