Genome-wide patterns of divergence and gene flow across a butterfly radiation
Nicola J Nadeau, Simon H Martin, Krzysztof M Kozak, Camilo Salazar, Kanchon K Dasmahapatra, John W Davey, Simon W Baxter, Mark L Blaxter, James Mallet, Chris D Jiggins
MOLECULAR ECOLOGY | WILEY | Published : 2013
The Heliconius butterflies are a diverse recent radiation comprising multiple levels of divergence with ongoing gene flow between species. The recently sequenced genome of Heliconius melpomene allowed us to investigate the genomic evolution of this group using dense RAD marker sequencing. Phylogenetic analysis of 54 individuals robustly supported reciprocal monophyly of H. melpomene and Heliconius cydno and refuted previous phylogenetic hypotheses that H. melpomene may be paraphylectic with respect to H. cydno. Heliconius timareta also formed a monophyletic clade closely related but distinct from H. cydno with Heliconius heurippa falling within this clade. We find evidence for genetic admixt..View full abstract
Awarded by Biotechnology and Biological Sciences Research Council
Awarded by Medical Research Council
Awarded by Natural Environment Research Council
We thank the governments of Colombia, Peru and Panama for permission to collect and export butterflies and Mauricio Linares for collecting and providing us will samples of H. cydno cordula. This work was funded primarily by a Leverhulme Trust award to CDJ and a BBSRC grant to JM, CDJ and MB. Sequencing of the RAD libraries was performed at the GenePool, Edinburgh.