Asian Journal of Agriculture and Biology,
Journal Year:
2022,
Volume and Issue:
Online First
Published: Aug. 1, 2022
Leaf
rust
of
wheat
caused
by
(Puccinia
triticina
Eriks)
proliferate
under
optimum
weather
conditions
and
causes
severe
damage.Diseases
appeared
in
form
epidemics
pose
a
real
threat
to
food
security
rising
the
cost
production.Breeding
for
development
resistant
varieties
against
disease
has
advantages
ecological
monetary
reasons,
predominantly
peasants
developing
world.Sufficient
research
work
been
conducted
regarding
pathogen
host
interaction
mechanism.Two
mechanisms
resistance
are
acquainted
very
well.Complete
function
from
seedling
adult
growth
stages
whereas
partial
becomes
effective
at
prebooting
stage
is
more
durable.Eighty
leaf
rust-resistant
genes
have
documented.Among
these
Lr12,
Lr13,
Lr22a,
Lr34,
Lr35,
Lr37,
Lr46,
Lr48,
Lr49,
Lr67,
Lr68,
Lr74,
Lr75,
Lr77,
Lr78
plant
(APR)
genes.Fear
genetic
erosion
also
well
known.It
means
cultivars
grown
on
wide
range
with
narrow
backgrounds
this
situation
undesired
as
it
may
invite
an
epidemic.It
experienced
repeatedly
past
decades.Wide
diversity
parents
can
promise
achieve
maximum
output
breeding
programmes.Sources
other
than
Triticum
aestivum
rich
consequently
addressed
adequately.Usage
relatives
source
novel
belonging
genera
Triticum,
Aegilops,
Thinopyrum
Secale
generated
desired
output.Molecular
markers
being
applied
explore
effectively
although
conventional
approaches
used
well.Status
carried
Pakistan
discussed
abridged
form.This
review
objective
summarize
academic
applied,
develop
strategies
incorporate
rust.
Trends in biotechnology,
Journal Year:
2021,
Volume and Issue:
40(4), P. 412 - 431
Published: Oct. 9, 2021
Crop
wild
relatives
(CWRs)
have
provided
breeders
with
several
'game-changing'
traits
or
genes
that
boosted
crop
resilience
and
global
agricultural
production.
Advances
in
breeding
genomics
accelerated
the
identification
of
valuable
CWRs
for
use
improvement.
The
enhanced
genetic
diversity
pools
carrying
optimum
combinations
favorable
alleles
targeted
crop-growing
regions
is
crucial
to
sustain
gain.
In
parallel,
growing
sequence
information
on
genomes
combination
precise
gene-editing
tools
provide
a
fast-track
route
transform
into
ideal
future
crops.
Data-informed
germplasm
collection
management
strategies
together
adequate
policy
support
will
be
equally
important
improve
access
their
sustainable
meet
food
nutrition
security
targets.
Molecular Plant,
Journal Year:
2021,
Volume and Issue:
14(7), P. 1053 - 1070
Published: May 13, 2021
Disease-resistance
(R)
gene
cloning
in
wheat
(Triticum
aestivum)
has
been
accelerated
by
the
recent
surge
of
genomic
resources,
facilitated
advances
sequencing
technologies
and
bioinformatics.
However,
with
challenges
population
growth
climate
change,
it
is
vital
not
only
to
clone
functionally
characterize
a
few
handfuls
R
genes,
but
also
do
so
at
scale
that
would
facilitate
breeding
deployment
crops
can
recognize
wide
range
pathogen
effectors
threaten
agroecosystems.
Pathogen
populations
are
continually
changing,
breeders
must
have
tools
resources
available
rapidly
respond
those
changes
if
we
safeguard
our
daily
bread.
To
meet
this
challenge,
propose
creation
R-gene
atlas
an
international
community
researchers
breeders.
The
consist
online
directory
from
which
sources
resistance
could
be
identified
deployed
achieve
more
durable
major
pathogens,
such
as
rusts,
blotch
diseases,
powdery
mildew,
blast.
We
present
costed
proposal
detailing
how
interacting
molecular
components
governing
disease
captured
both
host
through
biparental
mapping,
mutational
genomics,
whole-genome
association
genetics.
explore
options
for
configuration
genotyping
diversity
panels
hexaploid
tetraploid
wheat,
well
their
wild
relatives
discuss
inform
dynamic,
approach
deployment.
Set
against
current
magnitude
yield
losses
worldwide,
recently
estimated
21%,
endeavor
presents
one
route
bringing
genes
lab
field
considerable
speed
quantity.
Journal of Plant Physiology,
Journal Year:
2020,
Volume and Issue:
257, P. 153351 - 153351
Published: Dec. 17, 2020
Climate
change
during
the
last
40
years
has
had
a
serious
impact
on
agriculture
and
threatens
global
food
nutritional
security.
From
over
half
million
plant
species,
cereals
legumes
are
most
important
for
Although
systematic
breeding
relatively
short
history,
conventional
coupled
with
advances
in
technology
crop
management
strategies
increased
yields
by
56
%
globally
between
1965−85,
referred
to
as
Green
Revolution.
Nevertheless,
demand
food,
feed,
fiber,
fuel
necessitates
need
break
existing
yield
barriers
many
plants.
In
first
decade
of
21st
century
we
witnessed
rapid
discovery,
transformative
technological
development
declining
costs
genomics
technologies.
second
decade,
field
turned
towards
making
sense
vast
amount
genomic
information
subsequently
moved
accurately
predicting
gene-to-phenotype
associations
tailoring
plants
climate
resilience
this
review
focus
resources,
genome
germplasm
sequencing,
sequencing-based
trait
mapping,
genomics-assisted
approaches
aimed
at
developing
biotic
stress
resistant,
abiotic
tolerant
high
nutrition
varieties
six
major
(rice,
maize,
wheat,
barley,
sorghum
pearl
millet),
(soybean,
groundnut,
cowpea,
common
bean,
chickpea
pigeonpea).
We
further
provide
perspective
way
forward
use
including
marker-assisted
selection,
backcrossing,
haplotype
based
prediction
machine
learning
artificial
intelligence,
speed
approaches.
The
overall
goal
is
accelerate
genetic
gains
deliver
resilient
sustainable
agriculture.
Frontiers in Plant Science,
Journal Year:
2022,
Volume and Issue:
13
Published: June 16, 2022
Alongside
the
use
of
fertilizer
and
chemical
control
weeds,
pests,
diseases
modern
breeding
has
been
very
successful
in
generating
cultivars
that
have
increased
agricultural
production
several
fold
favorable
environments.
These
typically
homogeneous
(either
homozygous
inbreds
or
hybrids
derived
from
inbred
parents)
are
bred
under
optimal
field
conditions
perform
well
when
there
is
sufficient
water
nutrients.
However,
such
rare
globally;
indeed,
a
large
proportion
arable
land
could
be
considered
marginal
for
production.
Marginal
poor
fertility
and/or
shallow
soil
depth,
subject
to
erosion,
often
occurs
semi-arid
saline
Moreover,
these
environments
expected
expand
with
ongoing
climate
change
progressive
degradation
resources
globally.
Crop
wild
relatives
(CWRs),
most
used
as
sources
biotic
resistance,
also
possess
traits
adapting
them
Wild
progenitors
selected
over
course
their
evolutionary
history
maintain
fitness
diverse
range
stresses.
Conversely,
broad
adaptation
reduced
genetic
diversity
vulnerability
abiotic
challenges.
There
potential
exploit
heterogeneity,
opposed
uniformity,
utilization
lands.
This
review
discusses
adaptive
improve
performance
strategies
deploy
them.
Nature Communications,
Journal Year:
2022,
Volume and Issue:
13(1)
Published: July 6, 2022
Major
crops
are
all
survivors
of
domestication
bottlenecks.
Studies
have
focused
on
the
genetic
loci
related
to
syndrome,
while
contribution
ancient
haplotypes
remains
largely
unknown.
Here,
an
ancestral
genomic
haploblock
dissection
method
is
developed
and
applied
a
resequencing
dataset
386
tetraploid/hexaploid
wheat
accessions,
generating
pan-ancestry
map.
Together
with
cytoplastic
evidences,
we
reveal
that
domesticated
polyploid
emerged
from
admixture
six
founder
wild
emmer
lineages,
which
contributed
foundation
mosaics.
The
key
domestication-related
loci,
originated
over
wide
geographical
range,
were
gradually
pyramided
through
protracted
process.
Diverse
stable-inheritance
haplotype
groups
chromosome
central
zone
identified,
revealing
expanding
routes
trends
modern
breeding.
Finally,
evolution
model
proposed,
highlighting
role
wild-to-crop
interploidy
introgression,
increased
diversity
following
bottlenecks
introduced
by
polyploidization.