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.
Dopaminergic
neurons
with
distinct
projection
patterns
and
physiological
properties
compose
memory
subsystems
in
a
brain.
However,
it
is
poorly
understood
whether
or
how
they
interact
during
complex
learning.
Here,
we
identify
feedforward
circuit
formed
between
dopamine
show
that
essential
for
second-order
conditioning,
an
ethologically
important
form
of
higher-order
associative
The
Drosophila
mushroom
body
comprises
series
dopaminergic
compartments,
each
which
exhibits
dynamics.
We
find
slow
stable
compartment
can
serve
as
effective
‘teacher’
by
instructing
other
faster
transient
compartments
via
single
key
interneuron,
connectome
analysis
neurotransmitter
prediction.
This
excitatory
interneuron
acquires
enhanced
response
to
reward-predicting
odor
after
first-order
conditioning
and,
upon
activation,
evokes
release
the
‘student’
compartments.
These
hierarchical
connections
explain
first-
long
known
behavioral
psychologists.
How
memories
of
past
events
influence
behavior
is
a
key
question
in
neuroscience.
The
major
associative
learning
center
Drosophila,
the
mushroom
body
(MB),
communicates
to
rest
brain
through
output
neurons
(MBONs).
While
21
MBON
cell
types
have
their
dendrites
confined
small
compartments
MB
lobes,
analysis
EM
connectomes
revealed
presence
an
additional
14
that
are
atypical
having
dendritic
input
both
within
lobes
and
adjacent
regions.
Genetic
reagents
for
manipulating
MBONs
experimental
data
on
functions
been
lacking.
In
this
report
we
describe
new
cell-type-specific
GAL4
drivers
many
MBONs,
including
majority
extend
collection
driver
lines
previously
generated
(Aso
et
al.,
2014a;
Aso
2016;
2019).
Using
these
genetic
reagents,
conducted
optogenetic
activation
screening
examine
ability
drive
behaviors
learning.
These
provide
important
tools
study
complex
Drosophila.
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.
The
mushroom
body
(MB)
is
the
center
for
associative
learning
in
insects.
In
Drosophila
,
intersectional
split-GAL4
drivers
and
electron
microscopy
(EM)
connectomes
have
laid
foundation
precise
interrogation
of
MB
neural
circuits.
However,
investigation
many
cell
types
upstream
downstream
has
been
hindered
due
to
lack
specific
driver
lines.
Here
we
describe
a
new
collection
over
800
split-LexA
that
cover
approximately
300
types,
including
sugar
sensory
neurons,
putative
nociceptive
ascending
olfactory
thermo-/hygro-sensory
projection
interneurons
connected
with
MB-extrinsic
various
other
types.
We
characterized
activation
phenotypes
subset
these
lines
identified
neuron
line
most
suitable
reward
substitution.
Leveraging
thousands
confocal
images
associated
collection,
analyzed
neuronal
morphological
stereotypy
discovered
one
set
output
MBON08/MBON09,
exhibits
striking
individuality
asymmetry
across
animals.
conjunction
EM
connectome
maps,
reported
here
offer
powerful
resource
functional
dissection
circuits
adult
.
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2023,
Volume and Issue:
unknown
Published: Sept. 16, 2023
The
mushroom
body
(MB)
is
the
center
for
associative
learning
in
insects.
In
Drosophila,
intersectional
split-GAL4
drivers
and
electron
microscopy
(EM)
connectomes
have
laid
foundation
precise
interrogation
of
MB
neural
circuits.
However,
investigation
many
cell
types
upstream
downstream
has
been
hindered
due
to
lack
specific
driver
lines.
Here
we
describe
a
new
collection
over
800
split-LexA
that
cover
approximately
300
types,
including
sugar
sensory
neurons,
putative
nociceptive
ascending
olfactory
thermo-/hygro-sensory
projection
interneurons
connected
with
MB-extrinsic
various
other
types.
We
characterized
activation
phenotypes
subset
these
lines
identified
neuron
line
most
suitable
reward
substitution.
Leveraging
thousands
confocal
images
associated
collection,
analyzed
neuronal
morphological
stereotypy
discovered
one
set
output
MBON08/MBON09,
exhibits
striking
individuality
asymmetry
across
animals.
conjunction
EM
connectome
maps,
reported
here
offer
powerful
resource
functional
dissection
circuits
adult
Drosophila.
The
mushroom
body
(MB)
is
the
center
for
associative
learning
in
insects.
In
Drosophila,
intersectional
split-GAL4
drivers
and
electron
microscopy
(EM)
connectomes
have
laid
foundation
precise
interrogation
of
MB
neural
circuits.
However,
investigation
many
cell
types
upstream
downstream
has
been
hindered
due
to
lack
specific
driver
lines.
Here
we
describe
a
new
collection
over
800
split-LexA
that
cover
approximately
300
types,
including
sugar
sensory
neurons,
putative
nociceptive
ascending
olfactory
thermo-/hygro-sensory
projection
interneurons
connected
with
MB-extrinsic
various
other
types.
We
characterized
activation
phenotypes
subset
these
lines
identified
neuron
line
most
suitable
reward
substitution.
Leveraging
thousands
confocal
images
associated
collection,
analyzed
neuronal
morphological
stereotypy
discovered
one
set
output
MBON08/MBON09,
exhibits
striking
individuality
asymmetry
across
animals.
conjunction
EM
connectome
maps,
reported
here
offer
powerful
resource
functional
dissection
circuits
adult
Drosophila.
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.
The
mushroom
body
(MB)
is
the
center
for
associative
learning
in
insects.
In
Drosophila
,
intersectional
split-GAL4
drivers
and
electron
microscopy
(EM)
connectomes
have
laid
foundation
precise
interrogation
of
MB
neural
circuits.
However,
investigation
many
cell
types
upstream
downstream
has
been
hindered
due
to
lack
specific
driver
lines.
Here
we
describe
a
new
collection
over
800
split-LexA
that
cover
approximately
300
types,
including
sugar
sensory
neurons,
putative
nociceptive
ascending
olfactory
thermo-/hygro-sensory
projection
interneurons
connected
with
MB-extrinsic
various
other
types.
We
characterized
activation
phenotypes
subset
these
lines
identified
neuron
line
most
suitable
reward
substitution.
Leveraging
thousands
confocal
images
associated
collection,
analyzed
neuronal
morphological
stereotypy
discovered
one
set
output
MBON08/MBON09,
exhibits
striking
individuality
asymmetry
across
animals.
conjunction
EM
connectome
maps,
reported
here
offer
powerful
resource
functional
dissection
circuits
adult
.