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...

On the first Subandean species of Myrmecium Latreille, 1824 (Araneae, Corinnidae) from the Cordillera del Cóndor, Ecuador

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On the first Subandean species of Myrmecium Latreille, 1824 (Araneae, Corinnidae) from the Cordillera del Cóndor, Ecuador 

The ant-mimicking spider genus Myrmecium Latreille, 1824, revised by Candiani & Bonaldo (2017), can be diagnosed from other Castianeirinae by the presence of three deep constrictions of the cephalothorax, the long and obliquely inserted pedicel, the sternum posterior margins projected between coxae IV, generally forming a T-shape, pleural sclerites between legs III and IV fused with the sternum and carapace, and coxae III and IV almost vertically oriented and separated by more than twice the width of coxa III (Candiani & Bonaldo 2017).

Peñaherrera-R., P., Guerrero-Molina, T. & Cisneros-Heredia, D. F. (2026). On the first Subandean species of Myrmecium Latreille, 1824 (Araneae, Corinnidae) from the Cordillera del Cóndor, Ecuador. Zootaxa 5810(1): 184-188. doi: 10.11646/zootaxa.5810.1.10