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The mapping of snake venom has implications for antivenom, evolution, conservation research

Venom from an in the Everglades is distinct from the cocktail of toxins delivered by the same species in the Florida panhandle area, some 500 miles away. But no matter where you go in the , the venom of the is always the same. The results of a large-scale survey of venom variation in the two , published in the journal GENETICS, challenge common assumptions in venom evolution research, provide crucial information for rattlesnake conservation, and will help development.

Eastern Diamondback Rattlesnake
This image shows an adult eastern diamondback rattlesnake from north Florida.
Credit:Kenny Wray


Contrasting Modes and Tempos of Venom Expression Evolution in Two Snake Species Mark J. Margres, , Margaret Seavy, Kenneth P. Wray, Jack Facente, and Darin R. Rokyta GENETICS January 2015, 199:165-176 doi:10.1534/genetics.114.172437

Funding was provided by the National Science Foundation (DEB 1145987)

Genetics Society of America