| is hybridization a source of adaptive venom variation in rattlesnakes? a test, using a crotalus scutulatus × viridis hybrid zone in southwestern new mexico. | venomous snakes often display extensive variation in venom composition both between and within species. however, the mechanisms underlying the distribution of different toxins and venom types among populations and taxa remain insufficiently known. rattlesnakes (crotalus, sistrurus) display extreme inter- and intraspecific variation in venom composition, centered particularly on the presence or absence of presynaptically neurotoxic phospholipases a₂ such as mojave toxin (mtx). interspecific hybri ... | 2016 | 27322321 |
| venom variability and envenoming severity outcomes of the crotalus scutulatus scutulatus (mojave rattlesnake) from southern arizona. | twenty-one mojave rattlesnakes, crotalus scutulatus scutulatus (c. s. scutulatus), were collected from arizona and new mexico u.s.a. venom proteome of each specimen was analyzed using reverse-phase hplc and sds-page. the toxicity of venoms was analyzed using lethal dose 50 (ld(50)). health severity outcomes between two arizona counties u.s.a., pima and cochise, were determined by retrospective chart review of the arizona poison and drug information center (apdic) database between the years of 20 ... | 2012 | 22446891 |
| venom characteristics as an indicator of hybridization between crotalus viridis viridis and crotalus scutulatus scutulatus in new mexico. | one hundred and thirteen venoms from 46 populations of crotalus viridis viridis were screened by immunodiffusion for protein toxins antigenically similar to the phospholipase a2 (pla) toxin 'mojave toxin', using a polyclonal antibody to it's basic pla subunit. venom i.p. ld50 values in mice were recorded from 22 of the 46 populations. the venoms of three of 14 specimens from southwest (s.w.) new mexico and one specimen from northern arizona were immunologically positive by the immunodiffusion te ... | 1990 | 2120798 |