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Genetic origins of dysfunction in hybrid fish

wo hybrid male swordtail fish
Daniel Powell

In a new paper, published May 14 in Science,  researchers in the lab of Molly Schumer, assistant professor of biology, pinpoint two genes responsible for a melanoma that often develops near the tails of male highland-sheepshead hybrids. The finding marks only the second time that a hybrid dysfunction has been traced to specific genes in vertebrates.