Genomic divergence in a ring species complex

@article{Alcaide2014GenomicDI,
  title={Genomic divergence in a ring species complex},
  author={Miguel Alcaide and Elizabeth S C Scordato and Trevor D. Price and Darren E. Irwin},
  journal={Nature},
  year={2014},
  volume={511},
  pages={83-85}
}
Ring species provide particularly clear demonstrations of how one species can gradually evolve into two, but are rare in nature. In the greenish warbler (Phylloscopus trochiloides) species complex, a ring of populations wraps around Tibet. Two reproductively isolated forms co-exist in central Siberia, with a gradient of genetic and phenotypic characteristics through the southern chain of populations connecting them. Previous genetic evidence has proven inconclusive, however, regarding whether… 
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