Current Opinion in Insect Science,
Год журнала:
2018,
Номер
25, С. 116 - 124
Опубликована: Фев. 1, 2018
Diptera
(true
flies)
are
among
the
most
diverse
holometabolan
insect
orders
and
were
first
eukaryotic
order
to
have
a
representative
genome
fully
sequenced.
110
fly
species
publically
available
assemblies
many
hundreds
of
population-level
genomes
been
generated
in
model
organisms
Drosophila
melanogaster
malaria
mosquito
Anopheles
gambiae.
Comparative
genomics
carried
out
phylogenetic
context
is
illuminating
aspects
biology,
providing
unprecedented
insight
into
variability
structure,
gene
content,
genetic
mechanisms,
rates
patterns
evolution
genes,
populations,
species.
Despite
rich
availability
genomic
resources
flies,
there
remain
lineages
which
new
sequencing
efforts
should
be
directed.
Such
would
valuable
families
or
clades
that
exhibit
multiple
origins
key
behaviors
such
as
blood
feeding,
phytophagy,
parasitism,
pollination,
mycophagy.
Plant Cell & Environment,
Год журнала:
2018,
Номер
42(1), С. 115 - 132
Опубликована: Март 15, 2018
Abstract
Genetic
improvement
for
drought
tolerance
in
chickpea
requires
a
solid
understanding
of
biochemical
processes
involved
with
different
physiological
mechanisms.
The
objective
this
study
is
to
demonstrate
genetic
variations
altered
metabolic
levels
varieties
(tolerant
and
sensitive)
grown
under
contrasting
water
regimes
through
ultrahigh‐performance
liquid
chromatography/high‐resolution
mass
spectrometry‐based
untargeted
metabolomic
profiling.
Chickpea
plants
were
exposed
stress
at
the
3‐leaf
stage
25
days,
leaves
harvested
14
days
after
imposition
stress.
Stress
produced
significant
reduction
chlorophyll
content,
F
v
/
m
,
relative
shoot
root
dry
weight.
Twenty
known
metabolites
identified
as
most
important
by
2
methods
including
analysis
partial
least
squares
discriminant
analysis.
pronounced
increase
accumulation
due
was
demonstrated
allantoin,
l
‐proline,
‐arginine,
‐histidine,
‐isoleucine,
tryptophan.
Metabolites
that
showed
decreased
level
conditions
choline,
phenylalanine,
gamma‐aminobutyric
acid,
alanine,
tyrosine,
glucosamine,
guanine,
aspartic
acid.
Aminoacyl‐tRNA
plant
secondary
metabolite
biosynthesis
amino
acid
metabolism
or
synthesis
pathways
producing
variation
conditions.
Metabolic
changes
light
highlighted
pools
affect
adjustment
reduced
impacts.
Current Biology,
Год журнала:
2017,
Номер
27(6), С. 847 - 853
Опубликована: Март 1, 2017
The
rise
of
a
pest
species
represents
unique
opportunity
to
address
how
evolve
new
behaviors
and
adapt
novel
ecological
niches
[1].
We
this
question
by
studying
the
egg-laying
behavior
Drosophila
suzukii,
an
invasive
agricultural
that
has
spread
from
Southeast
Asia
Europe
North
America
in
last
decade
[2].
While
most
closely
related
lay
their
eggs
on
decaying
plant
substrates,
D.
suzukii
oviposits
ripening
fruit,
thereby
causing
substantial
economic
losses
fruit
industry
[3-8].
evolved
enlarged,
serrated
ovipositor
presumably
plays
key
role
enabling
females
pierce
skin
ripe
[9].
Here,
we
explore
selects
oviposition
sites,
differs
species.
have
combined
behavioral
experiments
multiple
with
neurogenetics
mutant
analysis
show
specific
preference
for
fruit.
Our
results
also
establish
changes
mechanosensation,
olfaction,
gustation
contributed
shift.
observations
support
model
which
emergence
as
is
consequence
progressive
modification
several
sensory
systems,
collectively
underlie
radical
change
behavior.
Journal of Insect Science,
Год журнала:
2020,
Номер
20(3)
Опубликована: Апрель 20, 2020
Abstract
After
its
initial
discovery
in
California
2008,
Drosophila
suzukii
Matsumura
has
become
one
of
the
most
important
invasive
agricultural
pest
insects
across
climate
zones
much
Asia,
Europe,
North
America,
and
South
America.
Populations
D.
have
demonstrated
notable
behavioral
physiological
plasticity,
adapting
to
diverse
environmental
climatic
conditions,
interspecific
competition,
novel
food
sources,
potential
predators.
This
adaptability
plasticity
enabled
rapid
range
expansion
diversified
niche
use
by
suzukii,
making
it
a
species
particularly
suited
changing
habitats
conditions.
article
reviews
factors
evidence
that
influence
promotes
this
species’
invasiveness.
Journal of Experimental Zoology Part B Molecular and Developmental Evolution,
Год журнала:
2018,
Номер
330(5), С. 265 - 278
Опубликована: Март 22, 2018
The
acquisition
of
genome
sequences
from
a
wide
range
insects
and
other
arthropods
has
revealed
broad
positive
correlation
between
the
complexity
their
chemical
ecology
size
chemosensory
gene
repertoire.
German
cockroach
Blattella
germanica
is
an
extreme
omnivore
largest
repertoire
known
for
arthropod,
exceeding
even
highly
polyphagous
spider
mite
Tetranychus
urticae.
While
Odorant
Receptor
family
not
particularly
large,
with
123
genes
potentially
encoding
134
receptors
(105
intact),
Gustatory
greatly
expanded
to
431
545
(483
second
only
mite.
Ionotropic
olfactory
gustatory
vastly
at
least
897
(604
in
arthropods,
far
surpassing
150
dampwood
termite
Zootermopsis
nevadensis.
Commensurately,
Binding
Protein
109
(all
intact).
Comparison
more
specialized,
but
phylogenetically
related
termite,
within
Dictyoptera,
reveals
considerable
losses
massive
species-specific
expansions
cockroach.
lost
function
11%-41%
these
three
chemoreceptor
families
pseudogenization,
most
are
young
events,
implying
rapid
turnover
along
major
expansions,
presumably
response
changes
its
ecology.
Genetics,
Год журнала:
2020,
Номер
214(1), С. 49 - 73
Опубликована: Янв. 1, 2020
Abstract
Behaviors
associated
with
reproduction
are
major
contributors
to
the
evolutionary
success
of
organisms
and
subject
many
forces,
including
natural
sexual
selection,
conflict.
Successful
involves
a
range
behaviors,
from
finding
an
appropriate
mate,
courting,
copulation,
successful
production
(in
oviparous
animals)
deposition
eggs
following
mating.
As
consequence,
behaviors
genes
often
under
strong
selection
evolve
rapidly.
Courtship
rituals
in
flies
follow
multimodal
pattern,
mediated
through
visual,
chemical,
tactile,
auditory
signals.
Premating
allow
males
females
assess
species
identity,
reproductive
state,
condition
their
partners.
Conflicts
between
“interests”
individual
males,
and/or
strategies
females,
drive
evolution
behaviors.
For
example,
seminal
proteins
transmitted
by
show
evidence
rapid
evolution,
positive
selection.
Postmating
oviposition
sites,
highly
variable
Drosophila
span
spectrum
generalists
obligate
specialists.
Chemical
recognition
features
prominently
adaptation
host
plants
for
feeding
oviposition.
Selection
acting
on
variation
pre-,
peri-,
postmating
can
lead
isolation
incipient
speciation.
Response
at
genetic
level
include
expansion
gene
families,
such
as
those
detecting
pheromonal
cues
mating,
or
changes
expression
leading
visual
wing
spots
that
assessed
during
Here,
we
consider
behavior
two
distinct,
yet
complementary,
scales.
Some
studies
take
microevolutionary
approach,
identifying
networks
involved
reproduction,
then
dissecting
genetics
underlying
complex
D.
melanogaster.
Other
macroevolutionary
comparing
across
genus
how
these
might
correlate
environmental
cues.
A
full
synthesis
this
field
will
require
unification
levels.
Molecular Biology and Evolution,
Год журнала:
2021,
Номер
38(6), С. 2532 - 2546
Опубликована: Фев. 11, 2021
Abstract
Studying
how
novel
phenotypes
originate
and
evolve
is
fundamental
to
the
field
of
evolutionary
biology
as
it
allows
us
understand
organismal
diversity
generated
maintained.
However,
determining
basis
challenging
involves
orchestrated
changes
at
multiple
biological
levels.
Here,
we
aim
overcome
this
challenge
by
using
a
comparative
species
framework
combining
behavioral,
gene
expression,
genomic
analyses
egg-laying
substrate-choice
behavior
invasive
pest
Drosophila
suzukii.
First,
used
behavioral
assays
evolution
ripe
fruit
oviposition
preference
in
D.
suzukii
compared
with
closely
related
subpulchrella
biarmipes
well
melanogaster.
We
show
that
lay
eggs
on
both
rotten
fruits,
suggesting
transition
was
gradual.
Second,
two-choice
assays,
studied
suzukii,
subpulchrella,
biarmipes,
melanogaster
differentially
process
key
sensory
cues
distinguishing
from
during
egg-laying.
found
suzukii’s
for
part
mediated
through
species-specific
stiff
substrates.
Last,
sequenced
annotated
high-quality
genome
subpulchrella.
Using
approaches,
identified
candidate
genes
involved
ability
seek
out
target
fruits.
Our
results
provide
detail
stepwise
activity
indicating
important
when
finding
host,
molecular
mechanisms
potentially
underlying
their
adaptation
new
ecological
niche.
G3 Genes Genomes Genetics,
Год журнала:
2021,
Номер
11(2)
Опубликована: Янв. 11, 2021
While
maize
with
anthocyanin-rich
pericarp
(purple
corn)
is
rising
in
popularity
as
a
source
of
natural
colorant
for
foods
and
beverages,
information
on
color
range
stability-factors
associated
anthocyanin
decorations
compositional
profiles-is
currently
limited.
Furthermore,
to
maximize
the
scalability
meet
growing
demands,
both
concentrations
agronomic
performance
must
improve
purple
corn
varieties.
Using
diversity
present
landrace,
Apache
Red,
we
generated
population
variable
flavonoid
profiles-flavanol-anthocyanin
condensed
forms
(0-83%),
acylated
anthocyanins
(2-72%),
pelargonidin-derived
(5-99%),
C-glycosyl
flavone
co-pigments
up
1904
µg/g,
content
1598
µg/g.
Each
aspect
profiles
was
found
play
role
either
resulting
extract
hue
or
intensity.
With
genotyping-by-sequencing
this
population,
mapped
aspects
profile.
Major
quantitative
trait
loci
(QTLs)
type
were
near
previously
identified
only
aleurone-pigmented
varieties
[Purple
aleurone1
(Pr1)
Anthocyanin
acyltransferase1
(Aat1)].
A
QTL
P1
(Pericarp
color1)
flavanol-anthocyanin
forms.
significant
peonidin-derived
candidate
S-adenosylmethionine-dependent
methyltransferase
also
identified,
warranting
further
investigation.
Mapping
total
produced
signals
Aat1,
aleurone-associated
bHLH
R1
(Colored1),
plant
color-associated
MYB,
Pl1
(Purple
plant1),
recessive
intensifier,
In1
(Intensifier1),
several
unidentified
candidates.
This
represents
one
most
diverse
pericarp-pigmented
characterized
date.
Moreover,
candidates
here
will
serve
branching
points
future
research
studying
genetic
molecular
processes
determining
profile
pericarp.