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 ...

Taxonomic revision of the genus Homoeomma Ausserer, 1871 (Araneae; Theraphosidae) in Chile, with description of four new species.

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Taxonomic revision of the genus Homoeomma Ausserer, 1871 (Araneae; Theraphosidae) in Chile, with description of four new species.

Abstract

The diversity and distribution of the genus Homoeomma Ausserer, 1871 in Chile is updated. Four new species are de- scribed: H. toriyamai sp. nov. (♂♀) and H. minimum sp. nov. (♂♀) from the Metropolitan Region, H. poqui sp. nov. (♂♀) from the Libertador General Bernardo O'Higgins Region 
and H. espinozai sp. nov. (♂) from the La Araucanía Region. New distribution rec- ords are given for H. chilense and H. orellanai. Finally, an identification key for the Homoeomma species present in Chile is provided, as well as a distribution map.

Resumen 

Se actualiza la diversidad y distribución del género Homoeomma Ausserer, 1871 en Chile. Cuatro nuevas especies son descritas: H. toriyamai sp. nov. (♂♀) y H. minimum sp. nov. (♂♀) de la Región Metropolitana, H. poqui sp. nov. (♂♀) de la Región del Libertador General Bernardo O´Higgins y H. espinozai sp. nov. (♂) de la Región de La Araucanía. Nuevos registros de dis- tribución para H. chilense y H. orellanai son dados. Finalmente, se proporciona una clave de identificación para las especies de Homoeomma presentes en Chile, así como un mapa de distribución.


Rubén Montenegro Vargas & Milenko A. Aguilera . (2024). REVISIÓN TAXONÓMICA DEL GÉNERO HOMOEOMMA AUSSERER, 1871 (ARANEAE; THERAPHOSIDAE) EN CHILE, CON DESCRIPCIÓN DE CUATRO NUEVAS ESPECIES. Revista Ibérica de Aracnología. 44. 85-96. 
Revista Ibérica de Aracnología, nº 44 (30/06/2024): 85–96. ARTÍCULO
Grupo Ibérico de Aracnología (S.E.A.). ISSN: 1576 - 9518.