Data from: Sharp genetic discontinuity across a unimodal Heliconius hybrid zone

Carlos F. Arias, Claudia Rosales, Camilo Salazar, Jully Castano, Eldredge Bermingham, Mauricio Linares & W. Owen McMillan
Hybrid zones are powerful natural systems to study evolutionary processes to gain an understanding of adaptation and speciation. In the Cauca Valley (Colombia), two butterfly races, Heliconius cydno cydnides and Heliconius cydno weymeri, meet and hybridize. We characterized this hybrid zone using a combination of mitochondrial DNA (mtDNA) sequences, Amplified Fragment Length Polymorphisms (AFLPs), microsatellites, and sequences for nuclear loci within and outside of the genomic regions that cause differences in wing color pattern. The...
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