SUPR
The genetic basis of nocturnal migratory behavior in insects - genome annotation, transcriptome analysis, and population genomics of the Australian Bogong moth, Agrotis infusa.
Dnr:

NAISS 2023/23-451

Type:

NAISS Small Storage

Principal Investigator:

Eric Warrant

Affiliation:

Lunds universitet

Start Date:

2023-10-01

End Date:

2024-10-01

Primary Classification:

10608: Zoology

Webpage:

Allocation

Abstract

The Bogong moth (Agrotis infusa) is a remarkable nocturnal long-distance migratory animal and an iconic Australian species. Every year in autumn, before the start of the hot summer in their breeding grounds (stretched in an arc-like distribution across southern Queensland, western/northwestern New South Wales and western Victoria), these tiny animals embark in their billions on a long nocturnal journey to find specific caves and crevices located over 1000 km away in the Australian Alps (in New South Wales and Victoria). Here they cluster in many thousands on each square meter of cave wall in order to spend the summer months in a dormant state (called aestivation). In autumn, the moths will return home on a reverse migration to their breeding grounds where they mate, lay eggs and die. The following generation migrates again to the same caves and crevices the following spring without any previous knowledge of the route. In our group, we study various aspects of these moths’ biology (e.g. navigational strategies employed during migration, neural encoding of migration-relevant sensory cues, specifics of brain and eye design, population genetics etc.). We have previously used SNIC resources to assemble and annotate a Bogong moth reference genome, and begun to gain biological insights into the genome through comparative genomics and transcriptome analysis. In order to bring this project to completion, we will perform manual curation and validation of annotations of genes of particular interest in this emerging model species. A particular focus will be on genes putatively involved in Bogong moth navigation: olfactory receptor genes, and genes involved in the visual system of the moths. We also plan to incorporate population genomic data from Bogong moths collected across their breeding grounds to search for the source of heritability of migratory direction in the Bogong moth. This step in particular will require a substantial commitment of computation resources, and is the major reason we seek to extend our SNIC allocation.