Bulletin of Entomological Research,
Journal Year:
2025,
Volume and Issue:
unknown, P. 1 - 9
Published: March 28, 2025
Abstract
Sensory
neuron
membrane
protein
(
SNMP
)
gene
play
a
crucial
role
in
insect
chemosensory
systems.
However,
the
of
host
searching
behaviour
Rhopalosiphum
padi
(Hemiptera:
Aphididae),
highly
destructive
pest
cereal
crops,
has
not
been
clearly
understood.
Our
previous
research
shown
that
three
wheat
volatile
organic
compounds
(VOCs)
–
(E)-2-hexenol,
linalool,
and
octanal
can
attract
R.
,
but
involvement
aphid’s
olfactory
response
to
these
VOCs
be
elucidated.
In
this
study,
only
one
was
cloned
characterised
from
.
The
results
revealed
belongs
SNMP1
subfamily
named
RpadSNMP1.
RpadSNMP11
predominantly
expressed
antennae
aphid,
with
significantly
higher
expression
levels
observed
winged
forms,
indicating
it
is
involved
responses
padi.
RpadSNMP1
up-regulated
following
starvation,
showed
decreasing
trend
after
24
h
aphid
feeding.
Functional
analysis
through
knockdown
demonstrated
significant
decrease
’s
ability
search
for
plants.
residence
time
injected
ds
shortened
linalool
according
four-arm
olfactometer,
mediating
VOCs.
Molecular
docking
suggested
potential
binding
interactions
between
Overall,
findings
provided
evidence
plant
lay
foundation
developing
new
methods
control
pest.
Arthropod Structure & Development,
Journal Year:
2021,
Volume and Issue:
65, P. 101100 - 101100
Published: Sept. 3, 2021
According
to
all
latest
phylogenetic
analyses,
the
taxon
Pancrustacea
embraces
crustaceans
in
traditional
sense
and
hexapods.
Members
of
for
a
long
time
have
been
known
display
distinct
similarities
architecture
their
brains.
Here,
we
review
recent
progress
open
questions
concerning
structural
functional
communalities
selected
higher
integrative
neuropils
lateral
protocerebrum
pancrustaceans,
mushroom
bodies
hemiellipsoid
bodies.
We
also
discuss
projection
neuron
pathway
which
provides
input
channel
both
from
primary
chemosensory
centers
deutocerebrum.
Neuronal
characters
are
mapped
on
current
pancrustacean
phylogeny
order
extract
those
that
part
ground
pattern.
Furthermore,
summarize
insights
into
evolutionary
transformation
body
morphology
across
Pancrustacea.
iScience,
Journal Year:
2022,
Volume and Issue:
25(5), P. 104272 - 104272
Published: April 20, 2022
Insects
detect
odors
via
a
large
variety
of
odorant
receptors
(ORs)
expressed
in
olfactory
sensory
neurons
(OSNs).
The
insect
OR
is
heteromeric
complex
composed
ligand-specific
receptor
and
the
co-receptor
(ORco).
In
this
study,
we
identified
ORco
gene
cockroach,
Periplaneta
americana
(PameORco),
performed
RNAi-based
functional
analysis
PameORco.
All
OSNs
basiconic
sensilla
PameORco
received
including
sex
pheromones.
trichoid
sensilla,
PameORco-positive
OSN
was
consistently
paired
with
PameORco-negative
tuned
to
acids.
adult
cockroaches
injected
dsRNA
at
nymphal
stage,
expression
PameORco,
odor
receptions
ORs,
its
central
processing
were
strongly
suppressed.
These
results
provide
new
insights
into
molecular
basis
reception
cockroach.
long-lasting
irreversible
effects
RNAi
would
be
an
effective
method
for
controlling
household
pest.
Physiological Entomology,
Journal Year:
2024,
Volume and Issue:
49(2), P. 67 - 90
Published: Jan. 24, 2024
Abstract
Molecular
studies
on
odorant
receptors
(ORs),
odorant‐binding
proteins
(OBPs)
and
the
functioning
of
receptor
pheromone
signal
transduction
in
fruit
fly
Bactrocera
species
have
expanded
exponentially
during
past
few
decades.
OBPs
contribute
to
sensing
olfactory
system
(OS)
via
odorants
through
sensillum
lymph.
However,
ORs,
a
family
G‐protein‐coupled
various
other
species,
exhibit
heightened
responsiveness
multiple
chemical
odours
such
as
hormones,
sensory
stimuli
neurotransmitters.
The
apparent
mechanism
involves
combinatorial
code
encompassing
both
peripheral
antennal
lobe
processing,
facilitating
reception
sexual
pheromones
environmental
cues.
OS
is
specifically
designed
recognize
process
information
from
volatile
signals,
these
signals
play
an
important
function
flies.
Insects
rely
chemicals
navigate
comprehend
their
surroundings.
A
mature
insect
composed
two
pairs
sensillae‐covered
palps,
antennae
primary
appendages
anterior
head.
It
has
been
shown
that
chemosensory
gene
families
odour
perception.
These
include
neuroreceptor
families,
OBPs,
neuron
membrane
proteins.
Additionally,
there
are
three
divergent
chemoreceptors,
namely
ionotropic
gustatory
receptors.
Methods
based
systematic
biology,
molecular
biology
bioinformatics
tools
rapidly
emerged
investigate
communication
systems
provide
new
insights
for
management
many
agricultural
pest.
Several
aromatic
compounds,
including
semiochemicals
pheromones,
employed
defend
crops
animals
destructive
flies
invasive
frugivorous
species.
To
promote
expansion
cropping
system,
utilization
phytochemical
lures
can
be
convenient
sustainable
agriculture
production
enhance
food
security.
Hence,
this
review
examined
state
art
insects
with
focus
pest
identify
semiochemical
receptors,
protein
(CSRs),
well
practical
applications
biological
control
integrated
highlighted.
Current Opinion in Insect Science,
Journal Year:
2024,
Volume and Issue:
65, P. 101249 - 101249
Published: Aug. 6, 2024
Ticks
pose
a
major
threat
to
the
health
of
humans
and
animals.
The
use
synthetic
acaricides
repellents
has
raised
concerns
potential
environmental
risks
increasing
resistance
in
ticks.
This
article
highlights
importance
research
on
tick
chemosensation
developing
novel
control
agents.
It
provides
review
our
current
understanding
chemosensory
system
proposes
using
receptor
(CR)
genes
as
molecular
targets
discover
releases
high-quality
genomes
provide
unprecedented
opportunities
explore
CR
gene
repertoires.
Further
functional
characterization
is
necessary
identify
receptors
for
key
chemical
cues
signals
unravel
whether
involves
ionotropic
and/or
metabotropic
mechanisms.
BMC Genomics,
Journal Year:
2025,
Volume and Issue:
26(1)
Published: Jan. 15, 2025
Booklice,
belonging
to
the
genus
Liposcelis
(Psocodea:
Liposcelididae),
commonly
known
as
psocids,
infest
a
wide
range
of
stored
products
and
are
implicated
in
transmission
harmful
microorganisms
such
fungi
bacteria.
The
olfactory
system
is
critical
for
insect
feeding
reproduction.
Elucidating
molecular
mechanisms
booklice
crucial
developing
effective
control
strategies.
In
this
study,
we
aim
bridge
knowledge
gap
by
leveraging
transcriptome
genome
data
from
five
species.
Using
HMMER
method
manual
annotation,
have
identified
common
gene
families
associated
with
processes,
including
odorant
binding
proteins
(OBPs),
chemosensory
(CSPs),
receptors
(ORs),
ionotropic
(IRs),
sensory
neuron
membrane
(SNMPs).
Specifically,
94,
118,
26,
47,
34
olfactory-related
genes
L.
bostrychophila,
tricolor,
entomophila,
decolor,
yangi,
respectively.
Comparison
quantities
revealed
that
number
ORs
IRs
significantly
higher
than
those
transcriptome.
This
discrepancy
may
be
due
specific
expression
these
certain
tissues
or
their
lack
during
experimental
stage.
Simultaneously,
analysis
profiles
across
different
developmental
stages
varying
periods
peak
genes.
These
results
suggest
identification
on
genome-wide
scale
more
feasible
reliable
using
transcriptome-based
approach.
Additionally,
compared
parasitic
lice,
possess
increase
inability
lice
survive
without
host,
whereas
habits
live
complex
variable
environments.
Furthermore,
observed
IR
family
tricolor
has
undergone
degree
amplification,
which
facilitate
its
adaptation
diverse
environmental
conditions.
We
species
first
time,
providing
valuable
insights
future
functional
investigations
into
pheromone
recognition.
discoveries
present
promising
targets
effectively
managing
psocid
pests.