Insect Science,
Год журнала:
2023,
Номер
30(5), С. 1208 - 1228
Опубликована: Июнь 6, 2023
The
phytophagous
mite
Tetranychus
truncatus
is
a
serious
pest
in
East
Asia
but
has
relatively
narrower
host
range
than
the
urticae,
which
can
feed
on
over
1200
plant
species.
Here,
we
generated
high-quality
chromosomal
level
genome
of
T.
and
compared
it
with
that
an
emphasis
genes
related
to
detoxification
chemoreception,
explore
genomic
basis
underlying
evolution
range.
We
also
conducted
population
genetics
analyses
(in
86
females
from
10
populations)
transfer
experiments
4
investigate
transcription
changes
following
low-quality
(Solanum
melongena,
eggplant),
established
possible
connections
between
fitness
eggplant
chemoreception.
found
fewer
detoxification,
transport,
chemoreception
particularly
strong
reduction
gustatory
receptor
(GR)
genes.
widespread
transcriptional
variation
among
populations,
varied
eggplant.
characterized
selection
detoxification-related
through
ω
values
negative
correlation
expression
levels
values.
Based
results,
as
well
genetic
differences
identified
potentially
involved
adaptation
truncatus.
Our
work
provides
resource
for
this
new
insights
into
mechanisms
herbivorous
mites
plants.
G3 Genes Genomes Genetics,
Год журнала:
2022,
Номер
12(8)
Опубликована: Июнь 2, 2022
The
bitter
taste,
triggered
via
gustatory
receptors,
serves
as
an
important
natural
defense
against
the
ingestion
of
poisonous
foods
in
animals,
and
increased
host
breadth
is
usually
linked
to
increase
number
receptor
genes.
This
has
been
especially
observed
polyphagous
insect
species,
such
noctuid
species
from
Spodoptera
genus.
However,
dynamic
physical
mechanisms
leading
these
gene
expansions
evolutionary
pressures
behind
them
remain
elusive.
Among
major
drivers
genome
dynamics
are
transposable
elements
but,
surprisingly,
their
potential
role
expansion
not
considered
yet.
In
this
work,
we
hypothesized
that
possibly
positive
selection
would
be
involved
highly
evolution
spp.
We
first
sequenced
de
novo
full
465
Mb
S.
littoralis,
manually
annotated
main
chemosensory
genes,
including
a
large
repertoire
373
genes
(including
19
pseudogenes).
also
improved
completeness
frugiperda
litura
repertoires.
Then,
revealed
particular
category
class
I
retrotransposons,
SINE
transposons,
was
significantly
enriched
vicinity
clusters,
suggesting
transposon-mediated
mechanism
for
formation
clusters.
Selection
pressure
analyses
indicated
within
family
cryptic,
only
7
receptors
being
identified
positively
selected.
Altogether,
our
data
provide
new
good
quality
genome,
pinpoint
interesting
candidates
further
functional
studies
bring
valuable
genomic
information
on
species.
International Journal of Molecular Sciences,
Год журнала:
2023,
Номер
24(12), С. 9949 - 9949
Опубликована: Июнь 9, 2023
The
high
adaptability
of
insects
to
food
sources
has
contributed
their
ranking
among
the
most
abundant
and
diverse
species
on
Earth.
However,
molecular
mechanisms
underlying
rapid
adaptation
different
foods
remain
unclear.
We
explored
changes
in
gene
expression
metabolic
composition
Malpighian
tubules
as
an
important
excretion
detoxification
organ
silkworms
(Bombyx
mori)
fed
mulberry
leaf
artificial
diets.
A
total
2436
differentially
expressed
genes
(DEGs)
245
differential
metabolites
were
identified
between
groups,
with
majority
DEGs
associated
detoxification,
transmembrane
transport,
mitochondrial
function.
Detoxification
enzymes,
such
cytochrome
P450
(CYP),
glutathione-S-transferase
(GST),
UDP-glycosyltransferase,
ABC
SLC
transporters
endogenous
exogenous
solutes
more
diet
group.
Enzyme
activity
assays
confirmed
increased
CYP
GST
diet-fed
Metabolome
analysis
showed
contents
secondary
metabolites,
terpenoids,
flavonoids,
alkaloids,
organic
acids,
lipids,
additives
Our
findings
highlight
role
provide
guidance
for
further
optimization
diets
improve
silkworm
breeding.
Insects,
Год журнала:
2024,
Номер
15(1), С. 30 - 30
Опубликована: Янв. 3, 2024
Herbivorous
insects
and
host
plants
have
developed
a
close
complex
relationship
over
long
period
of
co-evolution.
Some
provide
nutrients
for
insects,
but
plants'
secondary
metabolites
also
influence
their
growth
development.
Frontiers in Physiology,
Год журнала:
2020,
Номер
11
Опубликована: Апрель 15, 2020
Apolygus
lucorum
(Hemiptera:
Miridae),
one
of
the
main
insect
pests,
causes
severe
damage
in
cotton
and
many
other
economic
crops.
As
is
well-known,
legs
play
important
roles
chemoreception
insects.
In
this
study,
putative
chemosensory
proteins
A.
involved
close
or
contact
chemical
communication
adult
bugs
were
investigated
using
RNA
transcriptome
sequencing
qPCR
methods.
Transcriptome
data
forelegs,
middle
hind
demonstrated
that
20
odorant
binding
protein
(OBP)
genes,
eight
(CSP)
receptor
(OR)
gene,
ionotropic
(IR)
gene
sensory
neuron
membrane
(SNMP)
identified
lucorum.
Compared
to
previous
antennae
data,
five
CSPs,
IR21a
SNMP2a
newly
legs.
Results
analysis
indicated
all
these
genes
ubiquitously
expressed
bugs.
Furthermore,
four
types
sensilla
on
including
trichodea
(subtypes:
long
straight
trichodea,
Str1;
curved
Str2),
chaetica
1,
Sch1;
2,
Sch2;
3,
Sch3),
basiconca
medium-long
basiconca,
Sba1;
short
Sba2)
Böhm
bristles
(BB)
found
scanning
electron
microscopy.
Additionally,
largest
number
was
observed
legs,
while
forelegs
had
smallest
sensilla.
Our
provide
valuable
insights
into
understanding
Insect Science,
Год журнала:
2023,
Номер
30(5), С. 1208 - 1228
Опубликована: Июнь 6, 2023
The
phytophagous
mite
Tetranychus
truncatus
is
a
serious
pest
in
East
Asia
but
has
relatively
narrower
host
range
than
the
urticae,
which
can
feed
on
over
1200
plant
species.
Here,
we
generated
high-quality
chromosomal
level
genome
of
T.
and
compared
it
with
that
an
emphasis
genes
related
to
detoxification
chemoreception,
explore
genomic
basis
underlying
evolution
range.
We
also
conducted
population
genetics
analyses
(in
86
females
from
10
populations)
transfer
experiments
4
investigate
transcription
changes
following
low-quality
(Solanum
melongena,
eggplant),
established
possible
connections
between
fitness
eggplant
chemoreception.
found
fewer
detoxification,
transport,
chemoreception
particularly
strong
reduction
gustatory
receptor
(GR)
genes.
widespread
transcriptional
variation
among
populations,
varied
eggplant.
characterized
selection
detoxification-related
through
ω
values
negative
correlation
expression
levels
values.
Based
results,
as
well
genetic
differences
identified
potentially
involved
adaptation
truncatus.
Our
work
provides
resource
for
this
new
insights
into
mechanisms
herbivorous
mites
plants.
