SUPR
Chemosensory receptor genes in spiders
Dnr:

NAISS 2024/23-260

Type:

NAISS Small Storage

Principal Investigator:

Dan-dan Zhang

Affiliation:

Lunds universitet

Start Date:

2024-04-30

End Date:

2025-05-01

Primary Classification:

10608: Zoology

Webpage:

Allocation

Abstract

The chemical sense plays a pivotal role in all living beings from bacteria to vertebrates. Arthropods make up more than 80 percent of all described living animals and our knowledge on sensing in arthropods mostly builds on a few well-studied insect species. In spiders, it remains a conundrum how they smell; although it is well supported by behavioural obsevations that spiders produce and perceive volatile organic compounds, the few detailed studies on sensilla of entelegyne spiders demonstrated that they possess tip-pore sensilla only and thus lack multiporous sensilla. In this study, we aim to explore the molecular basis for chemosensation in the wasp spider Agriope bruennichi, by identifying the chemosensory receptor genes, including gustatory receptors and olfactory receptors from the transcriptome. We will take advantage of the recently available chromosome level genome of the species to guide the RNAseq reads assembly. We will compare the expression level of candidate receptor genes in different body parts and then focus on the genes that are abundant in chemosensory appendages. We will also perform the phylogenetic analysis of the arthropod chemosensory receptor genes in order to understand the evolutionary history of the gene families across the taxa.