The chromosome-level genome of Mesobuthus martensii provides insights into its evolution and the diversity of venom peptides

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  The chromosome-level genome of Mesobuthus martensii provides insights into its evolution and the diversity of venom peptides Abstract Mesobuthus martensii , the source species of the traditional Chinese medicine “Quanxie”, has long been utilized for its therapeutic properties. Venom peptides are recognized as the major active molecular basis of these pharmacological activities. Despite this, their development as therapeutic agents remains poorly explored. In this study, we performed an integrated multi-omics investigation to systematically explore the venom peptides of Mesobuthus martensii . We generated a chromosome-level genome assembly of Mesobuthus martensii using third-generation sequencing technologies, yielding a genome size of 1.08 Gb with a contig N50 of 46.46 Mb. Integrated genomic and transcriptomic analyses led to the identification of 51 putative novel venom peptide candidates. From the broader venom peptide set, five lysine- and arginine-rich candidates were select...

A new species of Ananteris Thorell, 1891 (Scorpiones: Ananteridae) from the Inini-Camopi Massif in French Guiana

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A new species of Ananteris Thorell, 1891 (Scorpiones: Ananteridae) from the Inini-Camopi Massif in French Guiana

Abstract

One new species belonging to the genus Ananteris Thorell is described from the highest peak of French Guiana called Montagne Bellevue, located in the Inini-Camopi Massif in Central French Guiana. The description of this new species brings further evidence about the biogeographic patterns of distribution presented by most species of the genus Ananteris, which are highly endemic in many natural formations of South America and in particular in French Guiana. The new species is a possible vicariant of Ananteris sabineae Lourenço, 2001, described from the Mitaraka Massif.

Lourenço, Wilson & Ythier, Eric. (2025). A new species of Ananteris Thorell, 1891 (Scorpiones: Ananteridae) from the Inini-Camopi Massif in French Guiana. Revista Ibérica de Aracnología.