Frontiers in Endocrinology,
Journal Year:
2020,
Volume and Issue:
11
Published: Sept. 17, 2020
Neuropeptides
are
the
most
abundant
and
diverse
signal
molecules
in
insects.
They
act
as
neurohormones
neuromodulators
to
regulate
physiology
behaviour
of
The
majority
neuropeptides
initiate
downstream
signalling
pathways
through
binding
G
protein-coupled
receptors
(GPCRs)
on
cell
surface.
In
this
study,
RNA-seq
technology
bioinformatics
were
used
search
for
genes
encoding
their
GPCRs
cowpea
aphid
Aphis
craccivora.
And
expression
these
at
different
developmental
stages
A.
craccivora
was
analysed
by
quantitative
real-time
PCR
(qRT-PCR).
A
total
40
candidate
neuropeptide
precursors
identified
from
transcriptome
data,
which
is
roughly
equivalent
number
that
have
been
reported
other
On
basis,
software
analysis
combined
with
homologous
prediction
estimated
there
could
be
more
than
60
mature
biological
activity.
addition,
46
obtained,
belong
rhodopsin-like
(A-family
GPCRs),
including
21
families
7
orphan
receptors,
6
secretin-like
(B-family
diuretic
hormone
31
(DH31),
DH44
pigment-dispersing
factor
(PDF)
receptors.
Compared
holometabolous
insects
such
Drosophila
melanogaster,
coding
sulfakinin,
corazonin,
arginine
vasopressin-like
peptide
(AVLP)
trissin
corresponding
not
found
It
speculated
likely
lacks
above
pathways,
consistent
Acyrthosiphon
pisum
loss
may
a
common
feature
aphids.
profiling
revealed
GPCR
differentially
expressed
wing
morphs.
This
study
will
help
deepen
our
understanding
systems
aphids,
thus
laying
foundation
development
new
methods
control
targeting
systems.
Journal of Agricultural and Food Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 4, 2025
Insect
adaptation
to
toxic
cardenolides
has
been
a
model
system
study
convergent
evolution
between
plants
and
herbivores.
It
was
hypothesized
that
Organic
anion-transporting
polypeptides
(Oatps)
multidrug
transporters
(Mdrs)
provide
basal
resistance
against
in
nonadapted
insect.
However,
there
is
still
little
evidence
support
this
hypothesis.
A
noncardenolide
feeder
an
important
rice
pest,
Nilaparvata
lugens,
were
used
test
Bioassays
revealed
two
representative
cardenolides,
ouabain,
digoxin,
demonstrated
significant
toxicity
N.
lugens.
The
suppression
of
the
expression
levels
six
Oatp
genes
three
Mdr
by
RNAi
did
not
result
any
lethal
phenotype
knockdown
certain
significantly
enhances
oral
ouabain
digoxin
findings
our
Oatps
Mdrs
are
key
lugens
protection
dietary
cardenolides.
International Journal of Molecular Sciences,
Journal Year:
2018,
Volume and Issue:
19(12), P. 3912 - 3912
Published: Dec. 6, 2018
Neuropeptides
are
endogenous
active
substances
that
widely
exist
in
multicellular
biological
nerve
tissue
and
participate
the
function
of
nervous
system,
most
them
act
on
neuropeptide
receptors.
In
insects,
neuropeptides
their
receptors
play
important
roles
controlling
a
multitude
physiological
processes.
this
project,
we
sequenced
transcriptome
from
twelve
tissues
Asian
citrus
psyllid,
Diaphorina
citri
Kuwayama.
A
total
40
candidate
genes
42
receptor
were
identified.
Among
genes,
35
belong
to
A-family
(or
rhodopsin-like),
four
B-family
secretin-like),
three
leucine-rich
repeat-containing
G-protein-coupled
The
expression
profile
82
across
developmental
stages
was
determined
by
qRT-PCR.
Our
study
provides
first
investigation
D.
citri,
which
may
key
regulating
physiology
behaviors
citri.
Frontiers in Endocrinology,
Journal Year:
2020,
Volume and Issue:
11
Published: Sept. 17, 2020
Neuropeptides
are
the
most
abundant
and
diverse
signal
molecules
in
insects.
They
act
as
neurohormones
neuromodulators
to
regulate
physiology
behaviour
of
The
majority
neuropeptides
initiate
downstream
signalling
pathways
through
binding
G
protein-coupled
receptors
(GPCRs)
on
cell
surface.
In
this
study,
RNA-seq
technology
bioinformatics
were
used
search
for
genes
encoding
their
GPCRs
cowpea
aphid
Aphis
craccivora.
And
expression
these
at
different
developmental
stages
A.
craccivora
was
analysed
by
quantitative
real-time
PCR
(qRT-PCR).
A
total
40
candidate
neuropeptide
precursors
identified
from
transcriptome
data,
which
is
roughly
equivalent
number
that
have
been
reported
other
On
basis,
software
analysis
combined
with
homologous
prediction
estimated
there
could
be
more
than
60
mature
biological
activity.
addition,
46
obtained,
belong
rhodopsin-like
(A-family
GPCRs),
including
21
families
7
orphan
receptors,
6
secretin-like
(B-family
diuretic
hormone
31
(DH31),
DH44
pigment-dispersing
factor
(PDF)
receptors.
Compared
holometabolous
insects
such
Drosophila
melanogaster,
coding
sulfakinin,
corazonin,
arginine
vasopressin-like
peptide
(AVLP)
trissin
corresponding
not
found
It
speculated
likely
lacks
above
pathways,
consistent
Acyrthosiphon
pisum
loss
may
a
common
feature
aphids.
profiling
revealed
GPCR
differentially
expressed
wing
morphs.
This
study
will
help
deepen
our
understanding
systems
aphids,
thus
laying
foundation
development
new
methods
control
targeting
systems.