Host races in the larch budmoth Zeiraphera diniana

We have been investigating distinct "host races" of a forest pest, the larch budmoth Zeiraphera diniana.  Each host race feeds on a different coniferous tree species, and the races appear to be  in the process of speciation. Igor Emelianov, Michele Drès and I are estimating the rate of gene flow between the host races, and mapping genetic loci which keep the two forms separate and are therefore, in a sense, genes for speciation.

Further details (summary of research)
Promiscuous butterflies [and moths] cross leaky "species boundary" (BBSRC news & Events)
Darwin was right about speciation after all

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