bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2023,
Номер
unknown
Опубликована: Июнь 24, 2023
Abstract
The
plastid-targeted
transcription
factor
Whirly1
(
WHY1
)
has
been
implicated
in
chloroplast
biogenesis,
plastid
genome
stability,
and
fungal
defense
response,
which
together
represent
characteristics
of
interest
for
the
study
autotrophic
losses
across
angiosperms.
While
gene
loss
nuclear
genomes
well
studied
mycoheterotrophic
plants,
evolution
molecular
mechanisms
impacting
stability
are
completely
unknown.
Here
we
characterize
four
early-transitional
orchid
species
genus
Corallorhiza
by
synthesizing
results
phylogenetic,
transcriptomic,
comparative
genomic
analyses
with
sequences
sampled
from
21
orders
We
found
an
increased
number
non-canonical
isoforms
assembled
all
but
greenest
species,
including
intron
retention
some
isoforms.
Within
,
phylotranscriptomic
revealed
presence
tissue-specific
differential
expression
only
most
photosynthetically
capable
a
coincident
increase
fully
species.
Gene-
codon-level
tests
selective
regimes
did
not
infer
significant
signal
either
relaxed
selection
or
episodic
diversifying
so
late-stage
full
orchids
Epipogium
aphyllum
Gastrodia
elata
.
Taken
together,
this
provides
comprehensive
view
angiosperms
to
date.
Our
reveal
that
splicing
alteration
decreased
deceased
plastome
group
these
changes
may
precede
shifts
observed
Abstract
The
Cucurbitaceae
family
includes
a
wide
range
of
economically
important
fruits
and
vegetables;
however,
the
laborious
highly
inefficient
genetic
transformation
efficacy
cucurbits
has
hindered
exploration
their
gene
functions.
Virus-induced
silencing
(VIGS)
technology,
employed
from
antiviral
RNA
defense,
emerged
as
viable
alternative
for
high-throughput
study
plant
function.
In
this
study,
we
successfully
established
VIGS
system
utilizing
Trichosanthes
mottle
mosaic
virus
(TrMMV),
new
member
genus
Tobamovirus
.
We
demonstrated
high
durability
mediated
by
TrMMV-VIGS
vector
in
Nicotiana
benthamiana
,
well
several
cucurbit
species,
including
Cucurbita
pepo
Cucumis
sativus
C.
lanatus
melo
insertion
90–400
bp
fragments
into
led
to
effective
target
both
with
notably
higher
efficiency
observed
Furthermore,
induced
pronounced
photobleaching
phenotype
flowers
underscoring
its
potential
application
functional
genomic
research
concerning
floral
traits
particular
species.
Taken
together,
developed
herein
will
facilitate
rapid
identification
functions
crops.
PLoS Pathogens,
Год журнала:
2024,
Номер
20(8), С. e1012510 - e1012510
Опубликована: Авг. 29, 2024
Auxin
is
an
important
class
of
plant
hormones
that
play
role
in
growth
development,
biotic
stress
response,
and
viruses
often
suppress
host
auxin
levels
to
promote
infection.
However,
previous
research
on
auxin-mediated
disease
resistance
has
focused
mainly
signaling
pathway,
the
molecular
mechanisms
how
pathogenic
proteins
manipulate
biosynthetic
pathway
remain
poorly
understood.
TCP
a
plant-specific
transcription
factors,
which
TCP17
member
binds
promoter
YUCCAs
,
key
rate-limiting
enzyme
for
synthesis,
promotes
expression
involved
synthesis
plants.
In
this
study,
we
reported
Tomato
spotted
wilt
virus
(TSWV)
infection
suppressed
through
its
interaction
with
TCP17.
Further
studies
revealed
NSs
protein
encoded
by
TSWV
disrupts
dimerization
TCP17,
thereby
inhibit
transcriptional
activation
ability
reducing
content
Consequently,
interference
inhibits
response
signal
Transgenic
plants
overexpressing
exhibit
against
infection,
whereas
knocking
out
were
more
susceptible
Additionally,
other
RNA
(BSMV,
RSV
TBSV)
can
also
interact
interfere
dimerization.
Notably,
overexpression
enhanced
BSMV.
This
suggests
plays
crucial
defense
different
types
use
viral
target
component
Frontiers in Microbiology,
Год журнала:
2023,
Номер
14
Опубликована: Окт. 19, 2023
As
a
high-value
oilseed
crop,
soybean
[
Glycine
max
(L.)
Merr.]
is
limited
by
various
biotic
stresses
during
its
growth
and
development.
Soybean
mosaic
virus
(SMV)
devastating
viral
infection
of
that
primarily
affects
young
leaves
causes
significant
production
economic
losses;
however,
the
synergistic
molecular
mechanisms
underlying
response
to
SMV
are
largely
unknown.
Therefore,
we
performed
RNA
sequencing
on
SMV-infected
resistant
susceptible
lines
determine
mechanism
resistance
SMV.
When
clean
reads
were
aligned
G.
reference
genome,
total
36,260
genes
identified
as
expressed
used
for
further
research.
Most
differentially
(DEGs)
associated
with
found
be
enriched
in
plant
hormone
signal
transduction
circadian
rhythm
according
Kyoto
Encyclopedia
Genes
Genomes
analysis.
In
addition
salicylic
acid
jasmonic
acid,
which
well
known
disease
resistance,
abscisic
indole-3-acetic
cytokinin
also
involved
immune
soybean.
Ca
2+
signaling
related
DEGs
plant-pathogen
interaction
negatively
influence
resistance.
Furthermore,
MAPK
cascade
was
either
or
responses
SMV,
depending
different
downstream
proteins.
The
phytochrome
interacting
factor-cryptochrome-R
protein
module
MEKK3/MKK9/MPK7-WRKY33-CML/CDPK
play
essential
roles
based
protein-protein
prediction.
Our
findings
provide
general
insights
into
regulatory
networks
have
potential
improve
legume
infection.
bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2023,
Номер
unknown
Опубликована: Июнь 24, 2023
Abstract
The
plastid-targeted
transcription
factor
Whirly1
(
WHY1
)
has
been
implicated
in
chloroplast
biogenesis,
plastid
genome
stability,
and
fungal
defense
response,
which
together
represent
characteristics
of
interest
for
the
study
autotrophic
losses
across
angiosperms.
While
gene
loss
nuclear
genomes
well
studied
mycoheterotrophic
plants,
evolution
molecular
mechanisms
impacting
stability
are
completely
unknown.
Here
we
characterize
four
early-transitional
orchid
species
genus
Corallorhiza
by
synthesizing
results
phylogenetic,
transcriptomic,
comparative
genomic
analyses
with
sequences
sampled
from
21
orders
We
found
an
increased
number
non-canonical
isoforms
assembled
all
but
greenest
species,
including
intron
retention
some
isoforms.
Within
,
phylotranscriptomic
revealed
presence
tissue-specific
differential
expression
only
most
photosynthetically
capable
a
coincident
increase
fully
species.
Gene-
codon-level
tests
selective
regimes
did
not
infer
significant
signal
either
relaxed
selection
or
episodic
diversifying
so
late-stage
full
orchids
Epipogium
aphyllum
Gastrodia
elata
.
Taken
together,
this
provides
comprehensive
view
angiosperms
to
date.
Our
reveal
that
splicing
alteration
decreased
deceased
plastome
group
these
changes
may
precede
shifts
observed