Neurogenetic dissection of the Drosophila lateral horn reveals major outputs, diverse behavioural functions, and interactions with the mushroom body.

Abstract:

:Animals exhibit innate behaviours to a variety of sensory stimuli including olfactory cues. In Drosophila, one higher olfactory centre, the lateral horn (LH), is implicated in innate behaviour. However, our structural and functional understanding of the LH is scant, in large part due to a lack of sparse neurogenetic tools for this region. We generate a collection of split-GAL4 driver lines providing genetic access to 82 LH cell types. We use these to create an anatomical and neurotransmitter map of the LH and link this to EM connectomics data. We find ~30% of LH projections converge with outputs from the mushroom body, site of olfactory learning and memory. Using optogenetic activation, we identify LH cell types that drive changes in valence behavior or specific locomotor programs. In summary, we have generated a resource for manipulating and mapping LH neurons, providing new insights into the circuit basis of innate and learned olfactory behavior.

journal_name

Elife

journal_title

eLife

authors

Dolan MJ,Frechter S,Bates AS,Dan C,Huoviala P,Roberts RJ,Schlegel P,Dhawan S,Tabano R,Dionne H,Christoforou C,Close K,Sutcliffe B,Giuliani B,Li F,Costa M,Ihrke G,Meissner GW,Bock DD,Aso Y,Rubin GM,Jefferis GS

doi

10.7554/eLife.43079

subject

Has Abstract

pub_date

2019-05-21 00:00:00

issn

2050-084X

pii

43079

journal_volume

8

pub_type

杂志文章

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