Nature Communications,
Journal Year:
2023,
Volume and Issue:
14(1)
Published: May 26, 2023
Abstract
Colonization
of
a
novel
ecological
niche
can
require,
or
be
driven
by,
evolution
an
animal’s
behaviors
promoting
their
reproductive
success.
We
investigated
the
and
sensory
basis
oviposition
in
Drosophila
sechellia
,
close
relative
melanogaster
that
exhibits
extreme
specialism
for
Morinda
citrifolia
noni
fruit.
D.
produces
fewer
eggs
than
other
drosophilids
lays
these
almost
exclusively
on
substrates.
show
visual,
textural
social
cues
do
not
explain
this
species-specific
preference.
By
contrast,
we
find
loss
olfactory
input
but
essentially
abolishes
egg-laying,
suggesting
olfaction
gates
gustatory-driven
Noni
odors
are
detected
by
redundant
pathways,
discover
role
hexanoic
acid
cognate
Ionotropic
receptor
75b
(Ir75b)
odor-evoked
oviposition.
Through
exchange
provide
evidence
causal
contribution
odor-tuning
changes
Ir75b
to
’s
behavior.
Cell and Tissue Research,
Journal Year:
2021,
Volume and Issue:
383(1), P. 7 - 19
Published: Jan. 1, 2021
Abstract
The
majority
of
insect
olfactory
receptors
belong
to
two
distinct
protein
families,
the
ionotropic
(IRs),
which
are
related
glutamate
receptor
family,
and
odorant
(ORs),
evolved
from
gustatory
family.
Both
types
assemble
heteromeric
ligand-gated
cation
channels
composed
odor-specific
proteins
co-receptor
proteins.
We
here
present
in
short
current
view
on
evolution,
function,
regulation
IRs
ORs.
Special
attention
is
given
how
their
functional
properties
can
meet
environmental
ecological
challenges
an
has
face.
Cell,
Journal Year:
2023,
Volume and Issue:
186(12), P. 2556 - 2573.e22
Published: May 25, 2023
In
Drosophila,
a
dedicated
olfactory
channel
senses
male
pheromone,
cis-vaccenyl
acetate
(cVA),
promoting
female
courtship
while
repelling
males.
Here,
we
show
that
separate
cVA-processing
streams
extract
qualitative
and
positional
information.
cVA
sensory
neurons
respond
to
concentration
differences
in
5-mm
range
around
male.
Second-order
projection
encode
the
angular
position
of
by
detecting
inter-antennal
concentration,
which
are
amplified
through
contralateral
inhibition.
At
third
circuit
layer,
identify
47
cell
types
with
diverse
input-output
connectivity.
One
population
responds
tonically
flies,
second
is
tuned
looming,
integrates
taste
coincidentally
promote
mating.
The
separation
features
resembles
mammalian
what
where
visual
streams;
together
multisensory
integration,
this
enables
behavioral
responses
appropriate
specific
ethological
contexts.
Genetics,
Journal Year:
2021,
Volume and Issue:
217(1), P. 1 - 34
Published: Jan. 1, 2021
Genetic
approaches
in
the
fruit
fly,
Drosophila
melanogaster,
have
led
to
a
major
triumph
field
of
sensory
biology-the
discovery
multiple
large
families
receptors
and
channels.
Some
these
families,
such
as
transient
receptor
potential
channels,
are
conserved
from
animals
ranging
worms
humans,
while
others,
"gustatory
receptors,"
"olfactory
"ionotropic
restricted
invertebrates.
Prior
identification
flies,
it
was
widely
assumed
that
proteins
function
just
one
modality
vision,
smell,
taste,
hearing,
somatosensation,
which
includes
thermosensation,
light,
noxious
mechanical
touch.
By
employing
vast
combination
genetic,
behavioral,
electrophysiological,
other
concept
emerge
is
many
multitaskers.
The
earliest
example
this
idea
individual
channels
senses.
It
now
clear
multitasking
exhibited
by
including
gustatory
receptors,
ionotropic
epithelial
Na+
(also
referred
Pickpockets),
even
opsins,
were
formerly
thought
exclusively
light
sensors.
characterizations
neurons
express
them
also
reveal
mechanisms
through
flies
can
accurately
differentiate
between
different
stimuli
when
they
activate
same
receptor,
well
adaptation,
amplification,
integration.
insights
gleaned
studies
been
highly
influential
directing
investigations
animal
models.
BMC Biology,
Journal Year:
2020,
Volume and Issue:
18(1)
Published: Oct. 18, 2020
Abstract
Background
The
western
flower
thrips,
Frankliniella
occidentalis
(Pergande),
is
a
globally
invasive
pest
and
plant
virus
vector
on
wide
array
of
food,
fiber,
ornamental
crops.
underlying
genetic
mechanisms
the
processes
governing
thrips
biology,
feeding
behaviors,
ecology,
insecticide
resistance
are
largely
unknown.
To
address
this
gap,
we
present
F.
draft
genome
assembly
official
gene
set.
Results
We
report
first
sequence
for
any
member
insect
order
Thysanoptera.
Benchmarking
Universal
Single-Copy
Ortholog
(BUSCO)
assessments
(size
=
415.8
Mb,
scaffold
N50
948.9
kb)
revealed
relatively
complete
well-annotated
in
comparison
to
other
genomes.
unusually
GC-rich
(50%)
compared
genomes
date.
set
(OGS
v1.0)
contains
16,859
genes,
which
~
10%
were
manually
verified
corrected
by
our
consortium.
focused
manual
annotation,
phylogenetic,
expression
evidence
analyses
sets
centered
primary
themes
life
histories
activities
plant-colonizing
insects.
Highlights
include
following:
(1)
divergent
clades
large
expansions
genes
associated
with
environmental
sensing
(chemosensory
receptors)
detoxification
(CYP4,
CYP6,
CCE
enzymes)
substances
encountered
agricultural
environments;
(2)
comprehensive
salivary
gland
supported
enriched
expression;
(3)
apparent
absence
members
IMD
innate
immune
defense
pathway;
(4)
developmental-
sex-specific
progression
from
larvae
adulthood
through
neometaboly,
distinct
form
maturation
differing
either
incomplete
or
metamorphosis
Insecta.
Conclusions
Analysis
offers
insights
into
polyphagous
behavior
that
finds,
colonizes,
survives
widely
diverse
plants.
genomic
resources
presented
here
enable
more
analysis
evolution
providing
missing
taxon
contemporary
genomics-based
analyses.
Our
study
also
benchmark
molecular
evolutionary
investigations
Thysanoptera
species.
Frontiers in Molecular Neuroscience,
Journal Year:
2021,
Volume and Issue:
13
Published: Feb. 1, 2021
Ionotropic
receptors
(IRs)
are
a
highly
divergent
subfamily
of
ionotropic
glutamate
(iGluR)
and
conserved
across
Protostomia,
major
branch
the
animal
kingdom
that
encompasses
both
Ecdysozoa
Lophothrochozoa.
They
broadly
expressed
in
peripheral
sensory
systems,
concentrated
dendrites,
function
chemosensation,
thermosensation,
hygrosensation.
As
iGluRs,
four
IR
subunits
form
functional
ion
channel
to
detect
environmental
stimuli.
Most
comprise
individual
stimulus-specific
tuning
one
or
two
coreceptors.
This
review
summarizes
discoveries
structure
complexes
expression
each
IR,
as
well
discusses
future
direction
for
studies.
