Techniques
that
enable
precise
manipulations
of
subsets
neurons
in
the
fly
central
nervous
system
have
greatly
facilitated
our
understanding
neural
basis
behavior.
Split-GAL4
driver
lines
allow
specific
targeting
cell
types
Drosophila
melanogaster
and
other
species.
We
describe
here
a
collection
3060
range
adult
1373
characterized
third-instar
larvae.
These
tools
functional,
transcriptomic,
proteomic
studies
based
on
anatomical
targeting.
NeuronBridge
search
relate
light
microscopy
images
these
split-GAL4
to
connectomes
reconstructed
from
electron
images.
The
collections
are
result
screening
over
77,000
split
hemidriver
combinations.
In
addition
stocks
for
well-characterized
lines,
we
make
available
300,000
new
3D
lines.
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 10, 2024
Abstract
Techniques
that
enable
precise
manipulations
of
subsets
neurons
in
the
fly
central
nervous
system
have
greatly
facilitated
our
understanding
neural
basis
behavior.
Split-GAL4
driver
lines
allow
specific
targeting
cell
types
Drosophila
melanogaster
and
other
species.
We
describe
here
a
collection
3060
range
adult
1373
characterized
third-instar
larvae.
These
tools
functional,
transcriptomic,
proteomic
studies
based
on
anatomical
targeting.
NeuronBridge
search
relate
light
microscopy
images
these
split-GAL4
to
connectomes
reconstructed
from
electron
images.
The
collections
are
result
screening
over
77,000
split
hemidriver
combinations.
Previously
published
new
included,
all
validated
for
expression
curated
optimal
type
specificity
across
diverse
types.
In
addition
stocks
well-characterized
lines,
we
make
available
300,000
3D
lines.
Techniques
that
enable
precise
manipulations
of
subsets
neurons
in
the
fly
central
nervous
system
(CNS)
have
greatly
facilitated
our
understanding
neural
basis
behavior.
Split-GAL4
driver
lines
allow
specific
targeting
cell
types
Drosophila
melanogaster
and
other
species.
We
describe
here
a
collection
3060
range
adult
CNS
1373
characterized
third-instar
larvae.
These
tools
functional,
transcriptomic,
proteomic
studies
based
on
anatomical
targeting.
NeuronBridge
search
relate
light
microscopy
images
these
split-GAL4
to
connectomes
reconstructed
from
electron
images.
The
collections
are
result
screening
over
77,000
split
hemidriver
combinations.
Previously
published
new
included,
all
validated
for
expression
curated
optimal
cell-type
specificity
across
diverse
types.
In
addition
stocks
well-characterized
lines,
we
make
available
300,000
3D
lines.
A
fundamental
question
in
sensory
processing
is
how
different
channels
of
input
are
processed
to
regulate
behavior.
Different
may
converge
onto
common
downstream
pathways
drive
the
same
behaviors,
or
they
activate
separate
distinct
behaviors.
We
investigated
this
Drosophila
bitter
taste
system,
which
contains
diverse
bitter-sensing
cells
residing
organs.
First,
we
optogenetically
activated
subsets
neurons
within
each
organ.
These
elicited
broad
and
highly
overlapping
behavioral
effects,
suggesting
that
pathways,
but
also
observed
differences
argue
for
biased
convergence.
Consistent
with
these
results,
transsynaptic
tracing
revealed
organs
connect
connectivity.
one
type
neuron
projects
higher
brain.
integrate
from
multiple
specific
taste-related
then
traced
circuits,
providing
first
glimpse
into
Together,
results
reveal
inputs
selectively
integrated
early
circuit,
enabling
pooling
information,
while
circuit
diverges
have
roles.
PLoS Biology,
Journal Year:
2023,
Volume and Issue:
21(12), P. e3002432 - e3002432
Published: Dec. 11, 2023
Behavior
evolution
can
promote
the
emergence
of
agricultural
pests
by
changing
their
ecological
niche.
For
example,
insect
pest
Drosophila
suzukii
has
shifted
its
oviposition
(egg-laying)
niche
from
fermented
fruits
to
ripe,
non-fermented
fruits,
causing
significant
damage
a
wide
range
fruit
crops
worldwide.
We
investigate
chemosensory
changes
underlying
this
evolutionary
shift
and
ask
whether
sugars,
which
are
depleted
during
fermentation,
important
gustatory
cues
that
direct
D.
sweet,
ripe
fruits.
show
expanded
responses
lower
sugar
concentrations
than
model
melanogaster,
prefers
lay
eggs
on
fruit.
The
increased
response
correlates
with
an
increase
in
value
relative
strawberry
substrate
decisions.
In
addition,
we
genetic
manipulation
sugar-gustatory
receptor
neurons
(GRNs)
perception
is
required
for
prefer
over
substrate,
but
not
melanogaster
substrate.
Thus,
major
determinant
suzukii's
choice
complex
substrates.
Calcium
imaging
experiments
brain's
primary
center
(suboesophageal
zone)
GRNs
more
sensitive
counterparts,
suggesting
valuation
encoded
downstream
circuits
central
nervous
system
(CNS).
Taken
together,
our
data
suggest
brain
computations
involved
driving
preference
Scientific Reports,
Journal Year:
2023,
Volume and Issue:
13(1)
Published: Dec. 11, 2023
Egg-laying
in
Drosophila
is
the
product
of
post-mating
physiological
and
behavioural
changes
that
culminate
a
stereotyped
sequence
actions.
harbours
great
potential
as
paradigm
to
uncover
how
appropriate
motor
circuits
are
organized
activated
generate
behaviour.
To
study
this
programme,
we
first
describe
different
phases
egg-laying
programme
specific
actions
associated
with
each
phase.
Using
combination
neuronal
activation
silencing
experiments,
identify
neurons
(OvAbg)
abdominal
ganglion
key
players
egg-laying.
functionally
characterise
subsets
OvAbg,
used
an
intersectional
approach
neurotransmitter
lines-VGlut,
Cha
Gad1.
We
show
OvAbg/VGlut
promote
initiation
egg
deposition
mating
status
dependent
way.
OvAbg/Cha
required
exploration
phases,
though
leads
specifically
expulsion.
Experiments
OvAbg/Gad1
they
participate
deposition.
further
functional
connection
OvAbg
brain
neurons.
This
provides
insight
into
organization
underlying
complex
Techniques
that
enable
precise
manipulations
of
subsets
neurons
in
the
fly
central
nervous
system
have
greatly
facilitated
our
understanding
neural
basis
behavior.
Split-GAL4
driver
lines
allow
specific
targeting
cell
types
Drosophila
melanogaster
and
other
species.
We
describe
here
a
collection
3060
range
adult
1373
characterized
third-instar
larvae.
These
tools
functional,
transcriptomic,
proteomic
studies
based
on
anatomical
targeting.
NeuronBridge
search
relate
light
microscopy
images
these
split-GAL4
to
connectomes
reconstructed
from
electron
images.
The
collections
are
result
screening
over
77,000
split
hemidriver
combinations.
In
addition
stocks
for
well-characterized
lines,
we
make
available
300,000
new
3D
lines.
Techniques
that
enable
precise
manipulations
of
subsets
neurons
in
the
fly
central
nervous
system
have
greatly
facilitated
our
understanding
neural
basis
behavior.
Split-GAL4
driver
lines
allow
specific
targeting
cell
types
Drosophila
melanogaster
and
other
species.
We
describe
here
a
collection
3060
range
adult
1373
characterized
third-instar
larvae.
These
tools
functional,
transcriptomic,
proteomic
studies
based
on
anatomical
targeting.
NeuronBridge
search
relate
light
microscopy
images
these
split-GAL4
to
connectomes
reconstructed
from
electron
images.
The
collections
are
result
screening
over
77,000
split
hemidriver
combinations.
Previously
published
new
included,
all
validated
for
expression
curated
optimal
type
specificity
across
diverse
types.
In
addition
stocks
well-characterized
lines,
we
make
available
300,000
3D
lines.
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2023,
Volume and Issue:
unknown
Published: July 19, 2023
Foraging
animals
must
balance
the
costs
of
exploring
their
surroundings
with
potential
benefits
finding
nutritional
resources.
Each
time
an
animal
encounters
a
food
source
it
decide
whether
to
initiate
feeding
or
continue
searching
for
potentially
better
options.
Experimental
evidence
and
patch
foraging
models
predict
that
this
decision
depends
on
both
state
density
available
resources
in
environment.
How
brain
integrates
such
internal
external
states
adapt
so-called
exploration-exploitation
trade-off
remains
poorly
understood.
We
use
video-based
tracking
show
Drosophila
regulates
engage
patches
based
travel
between
patches,
latter
being
measure
To
uncover
neuronal
basis
process,
we
performed
neurogenetic
silencing
screen
more
than
400
genetic
driver
lines
sparse
expression
patterns
fly
brain.
identified
population
neurons
central
complex
acts
as
key
regulator
patch.
manipulating
activity
these
alters
probability
engage,
is
modulated
by
protein
animal,
perturbs
ability
adjust
decisions
fly’s
patches.
Taken
together,
our
results
reveal
substrate
information
control
specific
decision,
therefore
provide
important
step
towards
mechanistic
explanation
cognitive
computations
resolve
cost-benefit
trade-offs.
Current Opinion in Neurobiology,
Journal Year:
2023,
Volume and Issue:
84, P. 102822 - 102822
Published: Dec. 13, 2023
The
descending
neurons
connecting
the
fly's
brain
to
its
ventral
nerve
cord
respond
sensory
stimuli
and
evoke
motor
programs
of
varying
complexity.
Anatomical
characterization
their
synaptic
connections
suggests
how
these
circuits
organize
movements,
while
optogenetic
manipulation
activity
reveals
what
behaviors
they
can
induce.
Monitoring
responses
or
during
behavior
performance
indicates
information
may
encode.
Recent
advances
in
all
three
approaches
make
an
excellent
place
better
understand
sensorimotor
integration
transformation
required
for
nervous
systems
govern
sequences
that
constitute
animal
behavior.
Techniques
that
enable
precise
manipulations
of
subsets
neurons
in
the
fly
central
nervous
system
have
greatly
facilitated
our
understanding
neural
basis
behavior.
Split-GAL4
driver
lines
allow
specific
targeting
cell
types
Drosophila
melanogaster
and
other
species.
We
describe
here
a
collection
3060
range
adult
1373
characterized
third-instar
larvae.
These
tools
functional,
transcriptomic,
proteomic
studies
based
on
anatomical
targeting.
NeuronBridge
search
relate
light
microscopy
images
these
split-GAL4
to
connectomes
reconstructed
from
electron
images.
The
collections
are
result
screening
over
77,000
split
hemidriver
combinations.
In
addition
stocks
for
well-characterized
lines,
we
make
available
300,000
new
3D
lines.