bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2023,
Volume and Issue:
unknown
Published: Sept. 1, 2023
Abstract
Rice
(
Oryza
sativa
L.)
has
a
tremendous
domestication
history
and
is
presently
used
as
major
cereal
all
over
the
world.
In
Asia,
India
considered
one
of
centers
origin
indica
rice
several
native
landraces,
especially
in
North-Eastern
(NEI),
which
have
potential
to
cope
with
negative
impact
present-day
climate
change.
The
current
investigation
aimed
evaluate
NEI
landraces’
under
high
temperatures
elevated
CO
2
levels
comparison
check
variety
for
phenological,
morphological,
physiological
yield-associated
parameters
molecularly
validated
marker-assisted
genotyping.
initial
experiment
was
carried
out
75
landraces
their
heat
tolerance
ability.
Seven
better-performing
along
(N22)
were
further
evaluated
aforesaid
traits
across
two
years
(2019
2020)
control
(or
T1)
stress
treatments
–
(i)
mild
or
T2
[CO
550
ppm
+
4°
C
more
than
ambient
temperature]
(ii)
severe
T3
750
6°
using
bioreactors.
molecular
analysis,
eight
selected
genotypes
through
25
Start
Codon
Targeted
(SCoT)
markers.
results
revealed
that
(T2)
had
positive
on
various
morpho-physiological
like
plant
height,
number
leaves,
leaf
area
yield
spikelets
panicle
-1
(S/P),
thousand-grain
weight
(TGW)
grain
(GY).
This
effect
could
be
attributed
genotypes’
ability
maintain
higher
photosynthetic
rate
possess
better
moderately
temperatures.
However,
high-temperature
conditions
T3,
exhibited
significant
decrease
studied
including
GY.
It
found
pollen
significantly
positively
correlated
spikelet
fertility%
at
maturity,
associated
GY
applied
conditions.
shoot
biomass
evident
S/P,
harvest
index
(HI),
TGW
Overall,
Kohima
special
Lisem
responsive
compared
other
well
N22
SCoT
genotyping
amplified
total
77
alleles
55
polymorphic
PIC
value
ranging
from
0.22
0.67.
suggests
presence
genetic
variation
among
tested
lines
supports
evidence
closely
relatedness
Lisem.
These
are
North-East
based
improving
attributes
temperature
environments.
shortlisted
can
valuable
pre-breeding
materials
future
breeding
programs
improve
properties,
particularly
ongoing
changing
climatic
scenarios.
Genes,
Journal Year:
2023,
Volume and Issue:
14(6), P. 1281 - 1281
Published: June 16, 2023
The
present
day's
ongoing
global
warming
and
climate
change
adversely
affect
plants
through
imposing
environmental
(abiotic)
stresses
disease
pressure.
major
abiotic
factors
such
as
drought,
heat,
cold,
salinity,
etc.,
hamper
a
plant's
innate
growth
development,
resulting
in
reduced
yield
quality,
with
the
possibility
of
undesired
traits.
In
21st
century,
advent
high-throughput
sequencing
tools,
state-of-the-art
biotechnological
techniques
bioinformatic
analyzing
pipelines
led
to
easy
characterization
plant
traits
for
stress
response
tolerance
mechanisms
by
applying
'omics'
toolbox.
Panomics
pipeline
including
genomics,
transcriptomics,
proteomics,
metabolomics,
epigenomics,
proteogenomics,
interactomics,
ionomics,
phenomics,
have
become
very
handy
nowadays.
This
is
important
produce
climate-smart
future
crops
proper
understanding
molecular
responses
genes,
transcripts,
proteins,
epigenome,
cellular
metabolic
circuits
resultant
phenotype.
Instead
mono-omics,
two
or
more
(hence
'multi-omics')
integrated-omics
approaches
can
decipher
well.
Multi-omics-characterized
be
used
potent
genetic
resources
incorporate
into
breeding
program.
For
practical
utility
crop
improvement,
multi-omics
particular
combined
genome-assisted
(GAB)
being
pyramided
improved
yield,
food
quality
associated
agronomic
open
new
era
omics-assisted
breeding.
Thus,
together
are
able
processes,
biomarkers,
targets
engineering,
regulatory
networks
precision
agriculture
solutions
crop's
variable
ensure
security
under
changing
circumstances.
Plants,
Journal Year:
2025,
Volume and Issue:
14(2), P. 148 - 148
Published: Jan. 7, 2025
Heat
stress
is
one
of
the
major
concerns
for
wheat
production
worldwide.
Morphological
parameters
such
as
germination,
leaf
area,
shoot,
and
root
growth
are
affected
by
heat
stress,
with
physiological
including
photosynthesis,
respiration,
water
relation.
also
leads
to
generation
reactive
oxygen
species
that
disrupt
membrane
systems
thylakoids,
chloroplasts,
plasma
membrane.
The
deactivation
photosystems,
reduction
in
inactivation
Rubisco
affect
photo-assimilates
their
allocation,
consequently
resulting
reduced
grain
yield
quality.
development
thermo-tolerant
varieties
most
efficient
fundamental
approach
coping
global
warming.
This
review
provides
a
comprehensive
overview
various
aspects
related
tolerance
wheat,
damages
caused
mechanisms
tolerance,
genes
or
QTLs
regulating
methodologies
breeding
cultivars
high
tolerance.
Such
insights
essential
developing
potential
response
an
increasingly
warmer
environment.
Frontiers in Sustainable Food Systems,
Journal Year:
2023,
Volume and Issue:
7
Published: July 3, 2023
Crop
failure
is
largely
caused
by
various
climate
hazards,
and
among
them,
heat
stress
the
primary
factor
hindering
crop
production.
The
significant
global
loss
of
yield
primarily
due
to
heat-related
damage
during
reproductive
phase.
Terminal
has
been
well
documented
in
wheat,
causing
morphophysiological
alterations,
biochemical
disruptions,
reduction
genetic
potential.
formation
shoots
roots,
effect
on
double
ridge
stage,
early
biomass
vegetative
stage
are
also
impacted
stress.
final
negative
outcomes
include
reduced
grain
number
weight,
slower
filling
rate,
quality,
shorter
duration.
Plants
have
developed
mechanisms
adapt
through
modifications
their
morphological
or
growth
responses,
physiological
pathways,
changes
enzyme
reactions.
Numerous
tolerance
genes
identified
but
more
extensive
study
needed
increase
crops
satisfy
food
demands
world’s
growing
population.
policy
needs
prioritize
promote
additional
joint
research
development
heat-tolerant
wheat
breeding
ensure
security.
Plants,
Journal Year:
2024,
Volume and Issue:
13(6), P. 823 - 823
Published: March 13, 2024
Maize
(Zea
mays
L.)
is
an
important
cereal
and
affected
by
climate
change.
Therefore,
the
production
of
climate-smart
maize
urgently
needed
preserving
diverse
genetic
backgrounds
through
exploration
their
diversity.
To
achieve
this,
96
inbred
lines
were
used
to
screen
for
phenotypic
yield-associated
traits
grain
quality
parameters.
These
studied
across
two
different
environments
(Anand
Godhra)
polymorphic
simple
sequence
repeat
(SSR)
markers
employed
investigate
diversity,
population
structure,
trait-linked
association.
Genotype–environment
interaction
(GEI)
reveals
that
most
governed
genotype
itself
environments,
except
plant
ear
height,
which
largely
interact
with
environment.
The
genotypic
correlation
was
found
be
positive
significant
among
protein,
lysine
tryptophan
content.
Similarly,
yield-attributing
like
girth,
kernel
rows
ear−1,
kernels
row−1
number
ear−1
strongly
correlated
each
other.
Pair-wise
distance
ranged
from
0.0983
(1820194/T1
1820192/4-20)
0.7377
(IGI-1101
1820168/T1).
SSRs
can
discriminate
into
three
distinct
groups
shortlisted
genotypes
1820168/T1)
as
highly
lines.
Out
136
SSRs,
61
amplify
a
total
131
alleles
(2–3
per
loci)
0.46
average
gene
Polymorphism
Information
Content
(PIC)
0.24
(umc1578)
0.58
(umc2252).
structure
analysis
revealed
19.79%
admixture
genotypes.
Genome-wide
scanning
mixed
linear
model
identifies
stable
association
umc2038,
umc2050
umc2296
umc2252
tryptophan,
umc1535
umc1303
soluble
sugar.
obtained
utilized
in
future
breeding
programs
relation
other
trait
characterizations,
developments,
subsequent
molecular
performances
introgression
elite
Frontiers in Plant Science,
Journal Year:
2024,
Volume and Issue:
14
Published: Jan. 3, 2024
Climate
change
is
likely
to
lead
not
only
increased
global
temperatures
but
also
a
more
variable
climate
where
unseasonal
periods
of
heat
stress
are
prevalent.
This
has
been
evidenced
by
the
observation
spring-time
approaching
40°C
in
some
main
spring-wheat
producing
countries,
such
as
USA,
recent
years.
With
an
optimum
growth
temperature
around
20°C,
wheat
particularly
prone
damage
stress.
A
warming
with
increasingly
common
fluctuations
therefore
threatens
crops
and
subsequently
lives
livelihoods
billions
people
who
depend
on
crop
for
food.
To
futureproof
against
climate,
better
understanding
response
early
required.
Here,
we
utilised
DESeq2
identify
7,827
genes
which
were
differentially
expressed
landraces
after
exposure.
Candidate
hub
genes,
may
regulate
transcriptional
stress,
identified
via
weighted
gene
co-expression
network
analysis
(WGCNA),
validated
qRT-PCR.
Two
most
promising
candidate
(TraesCS3B02G409300
TraesCS1B02G384900)
downregulate
expression
involved
drought,
salinity,
cold
responses-genes
unlikely
be
required
under
stress-as
well
photosynthesis
hormone
signalling
repressors,
respectively.
We
suggest
role
poorly
characterised
sHSP
(TraesCS4D02G212300),
activator
response,
potentially
inducing
vast
suite
shock
proteins
transcription
factors
known
play
key
roles
response.
The
present
work
represents
exploratory
examination
heat-induced
landrace
seedlings
identifies
several
act
regulators
this
and,
thus,
targets
breeders
production
thermotolerant
varieties.
Frontiers in Plant Science,
Journal Year:
2024,
Volume and Issue:
15
Published: June 24, 2024
This
study
was
conducted
in
controlled
environmental
conditions
to
systematically
evaluate
multi-traits
responses
of
winter
wheat
(
Triticum
aestivum
L.)
genotypes
different
salinity
levels.
Responses
were
assessed
at
the
germination
early
seedling
stage
(Experiment
1).
Seeds
(n=292)
subjected
three
levels
(0
[control],
60,
and
120
mM
NaCl).
Principal
Component
Analysis
(PCA)
revealed
that
among
studied
traits
vigor
index
(SVI)
contributed
more
towards
diverse
response
stress.
Based
on
SVI,
eight
contrasting
assumed
be
tolerant
(Gage,
Guymon,
MTS0531,
Tascosa)
susceptible
(CO04W320,
Carson,
TX04M410211)
selected
for
further
physio-biochemical
evaluation
booting
2)
monitor
grain
yield.
Higher
level
(120
NaCl)
exposure
increased
thylakoid
membrane
damage,
lipid
peroxidation,
sugars,
proline,
protein
while
decreasing
photosynthesis,
chlorophyll
index,
starch,
yield,
magnitude
genotypic
shown
Experiment
1
not
analogous
2.
indicates
necessity
individual
screening
sensitive
growth
stages
identifying
true
salinity-tolerant
a
particular
stage.
However,
based
higher
yield
its
least
percentage
reduction
under
salinity,
Guymon
TX04M410211
identified
as
tolerant,
Gage
CO04W320
stage,
their
biparental
population
can
used
identify
genomic
regions
stage-specific
response.
Agronomy,
Journal Year:
2025,
Volume and Issue:
15(5), P. 1058 - 1058
Published: April 27, 2025
Late-season
foliar
nitrogen
(N)
application
is
widely
employed
to
improve
wheat
grain
yield
and
protein
concentration,
particularly
during
later
growth
stages
when
root
activity
declines
N
uptake
becomes
less
efficient.
However,
the
reported
effects
of
on
quality
remain
inconsistent.
This
meta-analysis,
based
51
field
trials
encompassing
1498
observations,
quantitatively
evaluates
impact
late-season
concentration.
The
results
demonstrate
that
significantly
enhances
both
(+4.1%)
concentration
(+5.9%)
compared
control
treatments.
Notably,
split
primarily
increased
(+6.3%),
whereas
supplementation
enhanced
(+3.4%)
(+6.0%).
Subgroup
analyses
reveal
effectiveness
influenced
by
management
practices.
Split
at
rates
101–200
kg
N/ha,
was
beneficial
only
higher
(≥200
N/ha).
Moreover,
timing
played
a
crucial
role:
anthesis
resulted
in
greatest
increases
(+5.3%)
(+5.8%),
while
applications
booting
or
post-anthesis
with
minimal
effects.
Additionally,
mitigated
conventional
negative
correlation
between
applied
as
strategy,
allowing
for
improved
without
reducing
potential.
study
highlights
importance
optimizing
timing,
method,
rate
maximize
improving
use
efficiency.