bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 21, 2024
Abstract
The
molecular
basis
of
cultivar-level
variations
in
polyploid
wheat
that
enables
environmental
adaptation
while
maintaining
yield
and
quality
remains
poorly
understood.
We
conducted
a
detailed
phenotypic
assessment
multiomics
analysis
nine
pan-genome
cultivars
grown
under
control
drought
conditions.
aimed
to
investigate
the
subgenome-level
variations,
cultivar
differences
biochemical
mechanisms
affecting
plant
fitness
moderate
stress.
Intrinsic
water
use
efficiency,
grain
yield,
protein
content
differed
among
cultivars,
supporting
plasticity
stress
responses.
Biased
proteome
metabolome
abundance
changes
response
during
vegetative
stage
indicate
different
strategies
for
utilization
homeologous
isoforms
assigned
A,
B,
D
subgenomes.
Drought
effects
were
detected
at
level,
but
significant
observed
central
carbon
pathway
metabolites
micronutrient
profiles.
subgenomic
localization
seed
storage
proteins
highlight
nutrient
reservoir
accumulation
emphasizes
enhanced
role
S-rich
prolamins
response.
Subgenomic
define
phenotypes
by
producing
molecules
accumulate
enable
underlying
trade-offs
between
yield-
or
quality-related
traits.
These
can
be
used
select
crops
with
increased
resistance
without
compromising
yield.
Plants,
Journal Year:
2025,
Volume and Issue:
14(4), P. 504 - 504
Published: Feb. 7, 2025
The
TaVP1-B
gene,
located
on
the
3B
chromosome
of
wheat,
is
a
homolog
Viviparous-1
(VP-1)
gene
maize
and
was
reported
to
confer
resistance
pre-harvest
sprouting
(PHS)
in
wheat.
In
this
study,
structure
analyzed
using
wheat
pan-genome
consisting
20
released
cultivars
(19
are
from
China),
3
single
nucleotide
polymorphisms
(SNPs),
which
were
identified
at
496
bp,
524
1548
bp
CDS
region,
respectively.
Haplotypes
analysis
showed
that
these
SNPs
complete
linkage
disequilibrium
only
two
haplotypes
designated
as
hap1
(TGG)
hap2
(GAA)
present.
Association
between
PHS
four
experiment
environments
revealed
average
accessions
with
significantly
better
than
hap2,
infers
effects
resistance.
To
further
investigate
impacts
alleles
locus
resistance,
SNP
region
converted
KASP
marker,
used
for
genotyping
304
Chinese
cultivars,
whose
evaluated
three
environments.
rates
(SRs)
135
lower
169
validating
present
study
provided
breeding-friendly
marker
functional
variants
can
be
genetic
improvement
Nature Communications,
Journal Year:
2025,
Volume and Issue:
16(1)
Published: March 5, 2025
Integration
of
multi-omics
data
can
provide
information
on
biomolecules
from
different
layers
to
illustrate
the
complex
biology
systematically.
Here,
we
build
a
atlas
containing
132,570
transcripts,
44,473
proteins,
19,970
phosphoproteins,
and
12,427
acetylproteins
across
wheat
vegetative
reproductive
phases.
Using
this
atlas,
elucidate
transcriptional
regulation
network,
contributions
post-translational
modification
(PTM)
transcript
level
protein
abundance,
biased
homoeolog
expression
PTM
in
wheat.
The
genes/proteins
related
development
disease
resistance
are
systematically
analyzed,
thus
identifying
phosphorylation
and/or
acetylation
modifications
for
seed
proteins
controlling
grain
quality
resistance-related
genes.
Lastly,
unique
module
TaHDA9-TaP5CS1,
specifying
de-acetylation
TaP5CS1
by
TaHDA9,
is
discovered,
which
regulates
Fusarium
crown
rot
via
increasing
proline
content.
Our
holds
great
promise
fast-tracking
molecular
breeding
studies
crops.
Research Square (Research Square),
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 11, 2025
Abstract
Yellow
rust
(YR),
caused
by
Puccinia
striiformis
f.
sp.
tritici
(Pst),
poses
a
significant
threat
to
wheat
production
worldwide.
Breeding
resistant
cultivar
is
crucial
for
managing
this
disease.
However,
understanding
of
the
genetic
mechanisms
underlying
YR
resistance
remains
fragmented.
To
address
this,
we
conducted
comprehensive
analysis
with
variome
data
from
2,191
accessions
worldwide
and
over
47,000
response
records
across
multiple
environments
pathogen
races.
Through
genome-wide
association
studies,
established
landscape
431
loci,
providing
rich
resource
(R)
gene
deployment.
Furthermore,
cloned
genes
corresponding
three
namely
Yr5x
effective
against
Pst
races,
Yr6/Pm5
that
conferred
two
species,
YrKB
(TaEDR2-B)
conferring
broad-spectrum
without
yield
penalty.
These
findings
offer
valuable
insights
into
basis
in
lay
foundation
engineering
durable
disease
resistance.
Horticulture Research,
Journal Year:
2025,
Volume and Issue:
12(6)
Published: March 3, 2025
Kiwifruits,
belonging
to
the
genus
Actinidia,
are
acknowledged
as
one
of
most
successfully
domesticated
fruits
in
twentieth
century.
Despite
rich
wild
resources
and
diverse
phenotypes
within
this
genus,
insights
into
genomic
changes
still
limited.
Here,
we
conducted
whole-genome
sequencing
on
seven
representative
materials
from
highly
diversified
sections
leading
assembly
annotation
14
haplotype
genomes
with
sizes
spanning
602.0
699.6
Mb.
By
compiling
these
genomes,
constructed
a
super
pan-genome
for
genus.
We
identified
numerous
structural
variations
(SVs,
including
gene
copy
number)
diverged
regions
genomes.
Notably,
significant
SV
variability
was
observed
intronic
MED25
TTG1
genes
across
different
materials,
suggesting
their
potential
roles
influencing
fruit
size
trichome
formation.
Intriguingly,
our
findings
indicated
high
genetic
divergence
between
two
individual,
tentatively
named
Actinidia
×
leiocacarpae,
sect.
Leiocacarpae.
This
likely
hybrid
heterozygous
genome
exhibited
notable
adaptations
related
resistance
against
bacterial
canker,
particularly
through
upregulation
RPM1
gene,
which
contains
specific
SV,
after
infection
by
Pseudomonas
syringae
pv.
actinidiae.
In
addition,
also
discussed
interlineage
hybridizations
taxonomic
treatments
Actinidia.
Overall,
comprehensive
here,
along
findings,
lays
foundation
examining
compositions
markers,
those
SVs,
facilitate
breeding
aimed
at
developing
desired
kiwifruits.
Horticulture Research,
Journal Year:
2025,
Volume and Issue:
12(7)
Published: March 10, 2025
Abstract
Alfalfa
(Medicago
sativa
L.),
a
perennial
legume
forage,
has
been
broadly
cultivated
owing
to
variety
of
favorable
characteristics,
including
comprehensive
ecological
adaptability,
superior
nutritive
value
and
palatability,
nitrogen
fixation
capacity.
The
productivity
traits
alfalfa,
specifically
its
biomass
yield
forage
quality,
are
significantly
influenced
by
series
determinants,
internal
developmental
factors
external
environmental
cues.
However,
the
regulatory
mechanisms
underlying
fundamental
biological
problems
alfalfa
remain
elusive.
Here,
we
conducted
review
focusing
on
genomics
advancements
in
gene-editing
technologies,
identification
genes
that
control
pivotal
agronomic
formation,
nutritional
flowering
time,
resistance
various
stresses.
Moreover,
molecular
design
roadmap
for
‘ideal
alfalfa’
proposed
potential
pangenomes,
self-incompatibility
mechanisms,
de
novo
domestication,
intelligent
breeding
strategies
enhance
alfalfa's
yield,
resilience
were
further
discussed.
This
will
provide
information
basic
biology
offer
new
insights
cultivation
ideal
alfalfa.
Plants,
Journal Year:
2025,
Volume and Issue:
14(7), P. 1140 - 1140
Published: April 6, 2025
Recent
years
have
witnessed
a
surge
in
the
publication
of
dozens
genome
assemblies
for
Triticeae
crops,
which
significantly
advanced
gene-related
research
wheat,
rye,
and
triticale.
However,
this
progress
has
also
introduced
challenges
selecting
universally
efficient
applicable
reference
genomes
genotypes
with
distant
or
ambiguous
phylogenetic
relationships.
In
study,
we
assessed
completeness
accuracy
triticale
using
comparative
benchmarking
universal
single-copy
orthologue
(BUSCO)
analysis
transcript
mapping
approaches.
BUSCO
revealed
that
proportion
complete
genes
positively
correlated
RNA-seq
read
mappability,
while
frequency
internal
stop
codons
served
as
significant
negative
indicator
assembly
data
mappability
wheat.
By
integrated
alignment
rate,
covered
length,
total
depth
from
data,
identified
SY
Mattis,
Lo7,
Mattis
plus
Lo7
most
robust
references
studies
triticale,
respectively.
Furthermore,
recommend
D
sequence
be
incorporated
bioinformatic
analyses
introgression,
translocation,
substitution
into
frequently
occurs
during
breeding.
The
could
help
evaluating
correctness
published
future,
other
findings
are
expected
to
support
closely
related
species.