Our venom work continues to expand to include many species of snake, centipede, and scorpion. Some of our focal species are shown below.
For our work on intraspecific venom variation in snakes, we primarily work with five species: the eastern diamondback rattlesnake (Crotalus adamanteus), the cottonmouth (Agkistrodon piscivorus), the pygmy rattlesnake (Sistrurus miliarius), the eastern coralsnake (Micrurus fulvius), and the timber rattlesnake (Crotalus horridus). The first four of these are locally abundant and sympatric over much of their ranges, facilitating comparative population-genomic studies.
We are in the process of characterizing venom composition in 12 invertebrate species, including six species of centipede and six species of scorpion. We are primarily working on centipedes in the genus Scolopendra and scorpions in the genera Centruroides and Hadrurus. In addition, we are looking at intraspecific venom variation in several of these using proteomic and transcriptomic approaches, as well as functional assays on venoms. Some of the species we are working with are shown below.