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Birds' migration genes are altered by geography

Birds' migration genes are altered by geography

Science
July 6 (UPI) -- New research shows birds of the same species, but with different migration patterns, feature slightly different genomes.Willow warblers born and bred in southern Sweden migrate to West Africa, while their peers from the north migrate to southeast Africa. The differences in migration patterns are reflected in the birds' genomes.In comparing the genomes of the two bird populations, researchers found discrepancies between 200 genes in two distinct genomic regions."Of these 200 or so genes, there are several that can be considered to be important for migration-related physiological adaptations and others that, according to our present knowledge, have a poorly characterized or unknown function," Max Lundberg, a researcher at Sweden's Lund University, said in a news release.Lundb...