Genomic and transcriptomic analyses support a silk gland origin of spider venom glands.

ABSTRACT:

Background

Spiders comprise a hyperdiverse lineage of predators with venom systems, yet the origin of functionally novel spider venom glands remains unclear. Previous studies have hypothesized that spider venom glands originated from salivary glands or evolved from silk-producing glands present in early chelicerates. However, there is insufficient molecular evidence to indicate similarity among them. Here, we provide comparative analyses of genome and transcriptome data from various lineages of spiders and other arthropods to advance our understanding of spider venom gland evolution.

Results

We generated a chromosome-level genome assembly of a model spider species, the common house spider (Parasteatoda tepidariorum). Module preservation, GO semantic similarity, and different

SUBMITTER: Zhu B 

PROVIDER: S-EPMC10099834 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature