Biology 3444F/G Lecture Notes - Lecture 8: Phylogeography, Population Genetics, Molecular Clock
24 Jul 2014
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Related in the sense that they both look at how genetic diversity affects geography. Phylogeography looks at it at larger spatial and temporal scales. Landscape genetics looks at similarity between populations at smaller spatial and temporal scales. Phylogeography: geographic distribution of genealogical lineages within species (or closely related species). Population genetics: 3 populations of species separated by distance; want to see how similar genetic variation is. Phylogeograhy: wants to establish lineages between the 3 populations. Phylogeographic patterns can be used to make inferences about the past and. Avise et al. was the first real phylogeographic study. Were looking at allozymes and dna sequence variation. Showed using sequence data and phylogeographic approach to make inferences about evolutionary history. Think the two large areas diverged further in past and red circle population was more recent. Make some inference(s) about the past and/or present ecology of populations. Animal mtdna is good for phylogeophic studies because no recombination.
