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 ...

The revision and phylogenetic position of Hippasa bifasciata Buchar, 1997 (Araneae, Lycosidae)

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The revision and phylogenetic position of Hippasa bifasciata Buchar, 1997 (Araneae, Lycosidae)

Abstract

Background

Hogna Simon, 1885 is the second-largest genus in the family Lycosidae after Pardosa C. L. Koch, 1847 (517 species), including 232 species so far. This genus has a cosmopolitan distribution spanning multiple continents. However, only four species (Hogna rubetra (Schenkel, 1963), Hogna trunca Yin, Bao & Zhang, 1996, Hogna jiafui Peng, Yin, Zhang & Kim, 1997 and Hogna arborea Lo, Wei & Cheng, 2023) have been recorded in China.

New information

A new combination, Hogna bifasciata (Buchar, 1997), comb. nov. (from Yunnan and Sichuan Provinces in south-western China), is proposed with both morphological and molecular evidence. Detailed morphological descriptions, photographs, scanning electron micrographs and a distribution map are provided. This species is distinguished from congeners by the unique structure of the female epigyne and its somatic pattern. Molecular phylogenetic analyses suggest H. bifasciata (Buchar, 1997) and all analysed Hogna species cluster together within the subfamily Lycosinae and the species is sister to the group, including Hogna frondicola Emerton, 1885, Hogna carolinensis Walckenaer, 1805 and Hogna crispipes L. Koch, 1877.


Wu C, Tao Z, Wang Y, Luo Y (2025) The revision and phylogenetic position of Hippasa bifasciata Buchar, 1997 (Araneae, Lycosidae). Biodiversity Data Journal 13: e166495. https://doi.org/10.3897/BDJ.13.e166495