Transcriptome analysis of the venom gland of the scorpion Scorpiops jendeki: implication for the evolution of the scorpion venom arsenalReportar como inadecuado




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BMC Genomics

, 10:290

First Online: 01 July 2009Received: 26 February 2009Accepted: 01 July 2009

Abstract

BackgroundThe family Euscorpiidae, which covers Europe, Asia, Africa, and America, is one of the most widely distributed scorpion groups.
However, no studies have been conducted on the venom of a Euscorpiidae species yet.
In this work, we performed a transcriptomic approach for characterizing the venom components from a Euscorpiidae scorpion, Scorpiops jendeki.

ResultsThere are ten known types of venom peptides and proteins obtained from Scorpiops jendeki.
Great diversity is observed in primary sequences of most highly expressed types.
The most highly expressed types are cytolytic peptides and serine proteases.
Neurotoxins specific for sodium channels, which are major groups of venom components from Buthidae scorpions, are not detected in this study.
In addition to those known types of venom peptides and proteins, we also obtain nine atypical types of venom molecules which haven-t been observed in any other scorpion species studied to date.

ConclusionThis work provides the first set of cDNAs from Scorpiops jendeki, and one of the few transcriptomic analyses from a scorpion.
This allows the characterization of a large number of venom molecules, belonging to either known or atypical types of scorpion venom peptides and proteins.
Besides, our work could provide some clues to the evolution of the scorpion venom arsenal by comparison with venom data from other scorpion lineages.

Electronic supplementary materialThe online version of this article doi:10.1186-1471-2164-10-290 contains supplementary material, which is available to authorized users.

Yibao Ma, Ruiming Zhao contributed equally to this work.

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Autor: Yibao Ma - Ruiming Zhao - Yawen He - Songryong Li - Jun Liu - Yingliang Wu - Zhijian Cao - Wenxin Li

Fuente: https://link.springer.com/article/10.1186/1471-2164-10-290



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