Article
Population structure of guppies in north-eastern Venezuela, the area of putative incipient speciation.
BMC evolutionary biology - 17 Feb 2014
Herdegen Magdalena, Alexander Heather J, Babik Wiesław, Mavárez Jesús, Breden Felix, Radwan Jacek
Abstract excerpt
BACKGROUND: Geographic barriers to gene flow and divergence among populations in sexual traits are two important causes of genetic isolation which may lead to speciation. Genetic isolation may be facilitated if these two mechanisms act synergistically. The guppy from the Cumaná region (within the Cariaco drainage) of eastern Venezuela has been previously described as a case of incipient speciation driven by...
Topics
- Animals
- DNA, Mitochondrial
- Discriminant Analysis
- Female
- Gene Flow
- Genetic Drift
- Genetic Variation
- Male
- Microsatellite Repeats
- Poecilia
- Principal Component Analysis