Identification by GWAS of marker haplotypes relevant to breed potato for Globodera pallida resistance
Julien Leuenberger,
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Florence Esnault,
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P. L. Lebas
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et al.
Theoretical and Applied Genetics,
Journal Year:
2025,
Volume and Issue:
138(3)
Published: Feb. 24, 2025
Identified
and
validated
QTL
GpaVa_MRQ
GpaIX_MRQ
provide
robust
tools
for
improving
potato
resistance
to
Globodera
pallida
via
marker-assisted
selection.
Potato
(Solanum
tuberosum
L.),
a
vital
food
crop
globally,
faces
significant
yield
losses
due
cyst
nematodes
(PCN).
This
study
aimed
identify
validate
genomic
regions
conferring
pallida,
facilitate
the
development
of
resistant
varieties
through
selection
(MAS).
We
conducted
Genome-Wide
Association
Studies
(GWAS)
on
pre-breeding
panel
genotyped
using
Genotyping
by
Sequencing
(GBS)
SolCAP
DNA
array.
Significant
resistance-associated
SNP
markers
were
identified
chromosomes
III,
IV,
V,
IX
XI.
Quantitative
trait
loci
(QTL),
including
major-effect
chromosome
V
IX,
shown
account
substantial
phenotypic
variance
in
validation
panel.
Haplotype-based
marker
sets
defined
at
four
regions,
enabling
practical
application
MAS.
The
successful
conversion
SNPs
PACE
two
main
further
supports
their
use
breeding
programs.
provides
valuable
insights
enhancing
G.
contributing
sustainable
agricultural
practices
global
security.
Language: Английский
Effect of Cytoplasm Types T and D on Quantitative Trait Loci for Chip Color and Proline Content in Potato Tubers in a Diploid Potato Population
Agronomy,
Journal Year:
2024,
Volume and Issue:
14(12), P. 2853 - 2853
Published: Nov. 28, 2024
The
production
of
chips
is
an
increasing
part
the
potato
market.
While
tubers
are
stored
at
low
temperatures
to
minimize
storage
problems,
they
tend
accumulate
reducing
sugars,
which
negatively
impact
quality
and
color
fried
products.
goal
this
study
was
analyze
cytoplasm
type
on
chip
after
harvest
cold
4
°C,
as
well
proline
content
in
cold-stressed
a
diploid
population
obtained
from
reciprocal
crossing
parents
with
T-
D-type
cytoplasm.
Using
224
F1
progeny
clones
genotyped
Diversity
Array
Technology
(DArTseq™),
we
mapped
Quantitative
Trait
Loci
(QTL),
treating
covariate.
We
detected
five
QTLs
for
six
storage,
strongest
QTL
both
traits
overlapping
chromosome
III.
Five
were
chromosomes
V,
X
XII,
most
significant
one
located
X.
Although
T-type
produced
significantly
lighter
used
covariate
caused
only
minor
modifications
landscapes
content.
Language: Английский