Frontiers in Plant Science,
Год журнала:
2024,
Номер
14
Опубликована: Янв. 11, 2024
Improving
barley
grain
quality
is
a
major
goal
in
breeding.
In
this
study,
total
of
35
papers
focusing
on
quantitative
trait
loci
(QTLs)
mapping
for
traits
published
since
2000
were
collected.
Among
the
454
QTLs
identified
these
studies,
349
them
mapped
onto
high-density
consensus
maps,
which
used
QTL
meta-analysis.
Through
meta-analysis,
initial
integrated
into
41
meta-QTLs
(MQTLs)
with
an
average
confidence
interval
(CI)
1.
66
cM,
88.9%
narrower
than
that
QTLs.
MQTLs,
25
subsequently
validated
publications
using
genome-wide
association
study
(GWAS).
From
ten
breeder’s
MQTLs
selected.
Synteny
analysis
comparing
and
wheat
revealed
orthologous
relationships
between
eight
45
MQTLs.
Additionally,
17
homologs
associated
rice
within
regions
through
comparative
analysis.
The
findings
provide
valuable
insights
molecular
marker-assisted
breeding
identification
candidate
genes
related
to
barley.
Biofortification
represents
a
promising
and
sustainable
strategy
for
mitigating
global
nutrient
deficiencies.
However,
its
successful
implementation
poses
significant
challenges.
Among
staple
crops,
wheat
emerges
as
prime
candidate
to
address
these
nutritional
gaps.
Wheat
biofortification
offers
robust
approach
enhance
cultivars
by
elevating
the
micronutrient
levels
in
grains,
addressing
one
of
most
crucial
concerns
present
era.
Frontiers in Genetics,
Год журнала:
2022,
Номер
13
Опубликована: Сен. 28, 2022
A
meta-analysis
of
QTLs
associated
with
grain
protein
content
(GPC)
was
conducted
in
hexaploid
and
tetraploid
wheat
to
identify
robust
stable
meta-QTLs
(MQTLs).
For
this
purpose,
as
many
459
GPC-related
retrieved
from
48
linkage-based
QTL
mapping
studies
were
projected
onto
the
newly
developed
consensus
map.
The
analysis
resulted
prediction
57
MQTLs
7
hotspots
located
on
all
chromosomes
(except
1D
4D)
average
confidence
interval
reduced
2.71-fold
compared
initial
QTLs.
physical
regions
occupied
by
ranged
140
bp
224.02
Mb
an
15.2
Mb,
whereas
1.81
36.03
a
mean
8.82
Mb.
Nineteen
two
also
found
be
co-localized
45
significant
SNPs
identified
16
previously
published
genome-wide
association
wheat.
Candidate
gene
(CG)
investigation
within
some
selected
led
identification
705
models
which
included
96
high-confidence
CGs
showing
expressions
different
grain-related
tissues
having
probable
roles
GPC
regulation.
These
significantly
expressed
mainly
involved
genes/gene
families
encoding
for
following
proteins:
aminotransferases,
early
nodulin
93,
glutamine
synthetases,
invertase/pectin
methylesterase
inhibitors,
BIG
GRAIN
1-like,
cytochrome
P450,
glycosyl
transferases,
hexokinases,
small
GTPases,
UDP-glucuronosyl/UDP-glucosyltransferases,
EamA,
SANT/Myb,
GNAT,
thioredoxin,
phytocyanin,
homeobox
domains
containing
proteins.
Further,
eight
genes
including
GPC-B1,
Glu-B1-1b,
Glu-1By9,
TaBiP1,
GSr,
TaNAC019-A,
TaNAC019-D,
bZIP-TF
SPA
already
known
detected
MQTL
confirming
efficacy
predicted
during
current
study.
Frontiers in Plant Science,
Год журнала:
2023,
Номер
14
Опубликована: Июль 17, 2023
Grain
protein
content
(GPC)
is
an
important
quality
trait
that
effectively
modulates
end-use
and
nutritional
characteristics
of
wheat
flour-based
food
products.
The
Gpc-B1
gene
responsible
for
the
higher
in
grain.
In
addition
to
GPC,
also
generally
associated
with
reduced
grain
filling
period
which
eventually
causes
yield
penalty
wheat.
main
aim
present
study
was
evaluate
effect
foliar
application
potassium
nitrate
(PN)
salicylic
acid
(SA)
on
physiological
a
set
twelve
genotypes,
including
nine
isogenic
lines
carrying
three
elite
varieties
no
gene,
grown
at
experimental
area
Department
Plant
Breeding
Genetics,
PAU,
Punjab,
India.
PN
significantly
increased
number
grains
per
spike
(GPS)
by
6.42
grains,
days
maturity
(DTM)
1.03
days,
1000-grain
weight
(TGW)
1.97
g
plot
(YPP)
0.2
kg/plot.
As
result
spray,
flag
leaf
chlorophyll
enhanced
2.35
CCI
anthesis
stage
1.96
10
after
all
tested
genotypes.
Furthermore,
nitrogen
average
0.52%
booting
0.35%
both
evaluated
addition,
yellow
peduncle
colour
30
19.08%
while
straw
improved
0.17%
preliminary
experiment
conducted
using
SA
demonstrated
significant
increase
DTM
other
component
traits.
2.31
GPS
approximately
3.17
TGW
1.13g,
YPP
0.21
had
GPC
itself.
findings
suggests
applications
can
mitigate
extending
Frontiers in Plant Science,
Год журнала:
2024,
Номер
14
Опубликована: Янв. 11, 2024
Improving
barley
grain
quality
is
a
major
goal
in
breeding.
In
this
study,
total
of
35
papers
focusing
on
quantitative
trait
loci
(QTLs)
mapping
for
traits
published
since
2000
were
collected.
Among
the
454
QTLs
identified
these
studies,
349
them
mapped
onto
high-density
consensus
maps,
which
used
QTL
meta-analysis.
Through
meta-analysis,
initial
integrated
into
41
meta-QTLs
(MQTLs)
with
an
average
confidence
interval
(CI)
1.
66
cM,
88.9%
narrower
than
that
QTLs.
MQTLs,
25
subsequently
validated
publications
using
genome-wide
association
study
(GWAS).
From
ten
breeder’s
MQTLs
selected.
Synteny
analysis
comparing
and
wheat
revealed
orthologous
relationships
between
eight
45
MQTLs.
Additionally,
17
homologs
associated
rice
within
regions
through
comparative
analysis.
The
findings
provide
valuable
insights
molecular
marker-assisted
breeding
identification
candidate
genes
related
to
barley.
