The genome of the venomous snail Lautoconus ventricosus sheds light on the origin of conotoxin diversity.

ABSTRACT:

Background

Venoms are deadly weapons to subdue prey or deter predators that have evolved independently in many animal lineages. The genomes of venomous animals are essential to understand the evolutionary mechanisms involved in the origin and diversification of venoms.

Results

Here, we report the chromosome-level genome of the venomous Mediterranean cone snail, Lautoconus ventricosus (Caenogastropoda: Conidae). The total size of the assembly is 3.59 Gb; it has high contiguity (N50 = 93.53 Mb) and 86.6 Mb of the genome assembled into the 35 largest scaffolds or pseudochromosomes. On the basis of venom gland transcriptomes, we annotated 262 complete genes encoding conotoxin precursors, hormones, and other venom-related proteins. These genes were scattered in the different pseu

SUBMITTER: Pardos-Blas JR 

PROVIDER: S-EPMC8152183 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature