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 ...

First record of Ctenus captiosus Gertsch, 1935 (Araneae: Ctenidae) for Mexico

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First record of Ctenus captiosus Gertsch, 1935 (Araneae: Ctenidae) for Mexico


Abstract

We report Ctenus captiosus Gertsch, 1935, for the first time in Mexico. The specimens were collected in the state of Querétaro. 

Moreno-García, E. ., & Desales-Lara, M. A. . (2025). First record of  Ctenus captiosus Gertsch, 1935 (Araneae: Ctenidae) for Mexico. Revista Chilena De Entomología, 51(4). Retrieved from https://www.biotaxa.org/rce/article/view/88150