Qualitative and Quantitative Proteomic Analysis of Venoms from Mexican Rattlesnakes

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  Qualitative and Quantitative Proteomic Analysis of Venoms from Mexican Rattlesnakes Abstract Despite the vast biodiversity of Mexican vipers, venom of endemic species has been barely studied. Here we analyzed the venom composition of three endemic species of rattlesnakes: Crotalus aquilus , C. triseriatus , and C. ravus . We used quantitative chromato-mass-spectrometry and compared venoms with C. molossus , a species commonly found in North America, in a comparative and phylogenetic framework. In total, we identified 165 proteins grouped in 19 main protein families, consistent with previous reports for viperid venoms. In C. aquilus and C. triseriatus , the most predominant protein-family type was Serine Proteases, and in C. triseriatus and C. molossus it was Snake Venom Metalloproteases. The Label-free quantification revealed a high proportion of Snake Venom Metalloproteases in C. aquilus , C. triseriatus , and C. molossus , reaching 28–47% of the total venom. In contrast, in ...

Richness analysis and completeness of the scorpion fauna of Aguascalientes, Mexico with an identification key to species

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Richness analysis and completeness of the scorpion fauna of Aguascalientes, Mexico with an identification key to species

Abstract
The scorpion fauna of the state of Aguascalientes was revised based on specimens deposited in scientific collections and fieldwork. We evaluated the completeness of the scorpion species inventory of the Colección Zoológica of the Universidad Autónoma de Aguascalientes (CZUAA) based on nonparametric estimators. The results indicate that the number of species increased from 11 to 13, recording for the first time Chihuahuanus glabrimanus (Sissom & Hendrixson, 2005), a psammophilic species, and Centruroides balsasensis Ponce-Saavedra and Francke, 2004, a medically relevant species for public health. Finally, an identification key to the scorpion species of Aguascalientes is provided and a recount of ecological and biological traits of the species herein is studied. 

Fernanda, Chávez Samayoa & Escoto, Jaime & González Santillán, Edmundo. (2024). Richness analysis and completeness of the scorpion fauna of Aguascalientes, Mexico with an identification key to species. REVISTA MEXICANA DE BIODIVERSIDAD. 95. 10.22201/ib.20078706e.2024.95.5380.