Application of GWAS and mGWAS in Livestock and Poultry Breeding
Animals,
Journal Year:
2024,
Volume and Issue:
14(16), P. 2382 - 2382
Published: Aug. 16, 2024
In
recent
years,
genome-wide
association
studies
(GWAS)
and
metabolome
(mGWAS)
have
emerged
as
crucial
methods
for
investigating
complex
traits
in
animals
plants.
These
played
pivotal
roles
research
on
livestock
poultry
breeding,
facilitating
a
deeper
understanding
of
genetic
diversity,
the
relationship
between
genes,
bases
poultry.
This
article
provides
review
applications
GWAS
mGWAS
animal
aiming
to
offer
reference
inspiration
relevant
researchers,
promote
innovation
improvement
breeding
methods,
contribute
sustainable
development
husbandry.
Language: Английский
Insights into the gut microbiota characteristics between the organic and traditional feeding chickens based on amplicon and metagenomic sequencing
Wen‐Zhou Zhang,
No information about this author
Jian Xiao,
No information about this author
Siqi Ding
No information about this author
et al.
Frontiers in Microbiology,
Journal Year:
2025,
Volume and Issue:
15
Published: Jan. 23, 2025
Intestinal
microorganisms
play
a
crucial
role
in
chicken
health
and
production
performance,
especially
the
research
of
traditional
organic
feeding
methods.
The
intestinal
contents
feed
chickens
were
analyzed
by
16S
rRNA
gene
metagenome
technology.
results
showed
that
microbial
diversity
was
significantly
higher
than
chickens,
key
microorganisms,
such
as
Enterococcus
,
more
abundant
chickens.
functional
analysis
revealed
significant
difference
metabolic
function
between
them.
present
study
provides
new
insights
into
gut
microbiota
characteristics
based
on
amplicon
metagenomic
sequencing.
Our
are
helpful
to
fully
illustrate
effects
different
methods
can
offer
scientific
basis
for
management.
Language: Английский
Functional Polymorphisms in the Neuropeptide Y (NPY) Gene Associated with Egg Production in Thai Native, Black-Bone, and Commercial Laying Hens Using SNP Markers
Doungnapa Promket,
No information about this author
Jennarong Kammongkun,
No information about this author
Jiranan Insee
No information about this author
et al.
Animals,
Journal Year:
2025,
Volume and Issue:
15(5), P. 744 - 744
Published: March 5, 2025
This
study
aimed
to
identify
single
nucleotide
polymorphism
(SNP)
loci
within
the
coding
sequence
of
neuropeptide
Y
(NPY)
gene
and
evaluate
their
association
with
egg
production
traits
in
Thai
native
chickens.
The
goal
was
enhance
productivity
through
selective
breeding.
A
total
117
chickens,
including
three
breeds
commercial
laying
hens,
were
analyzed.
phenotypic
measured
included
age
at
first
(AFEP),
weight
(FEW),
9
months
(EW_9M)
12
(EW_12M)
period,
number
eggs
(NE_9M)
(NE_12M)
per
month
(EperM),
mass
(EMs).
NPY
sequenced
examine
between
these
specific
genotypes.
results
showed
that
hens
(LC)
significantly
outperformed
overall
production.
Among
breeds,
Pradu
Hang
Dum
(PH)
demonstrated
earliest
highest
cumulative
Genetic
diversity
analysis
revealed
moderate
heterozygosity
levels
(PIC
=
0.22
0.50,
He
0.26
0.50).
Specific
SNP
(SNP1,
SNP2,
SNP3,
SNP4,
SNP5,
SNP6)
found
be
associated
key
traits,
such
as
AFEP,
FEW,
EW_9M,
EW_12M,
NE_9M,
NE_12M,
EperM,
EMs.
These
findings
highlight
potential
using
genetic
markers
for
improving
By
incorporating
marker-assisted
selection
into
breeding
programs,
this
research
supports
development
more
efficient
sustainable
poultry
farming
practices,
particularly
local
breeds.
also
underscores
importance
preserving
while
enhancing
productivity,
ensuring
long-term
sustainability
chicken
populations.
Language: Английский
Genome-Wide Association Studies and Candidate Genes for Egg Production Traits in Layers from an F2 Crossbred Population Produced Using Two Divergently Selected Chicken Breeds, Russian White and Cornish White
Genes,
Journal Year:
2025,
Volume and Issue:
16(5), P. 583 - 583
Published: May 15, 2025
Background/Objectives:
Finding
single
nucleotide
polymorphisms
(SNPs)
and
candidate
genes
that
influence
the
expression
of
key
traits
is
essential
for
genomic
selection
helps
improve
efficiency
poultry
production.
Here,
we
aimed
to
conduct
a
genome-wide
association
study
(GWAS)
egg
production
in
an
F2
resource
population
chickens
(Gallus
gallus).
Methods:
The
examined
was
produced
by
crossing
two
divergently
selected
breeds
with
contrasting
phenotypes
performance
traits,
namely
Russian
White
(of
higher
production)
Cornish
lower
production).
Sampled
birds
(n
=
142)
were
genotyped
using
Illumina
Chicken
60K
SNP
iSelect
BeadChip.
Results:
In
course
GWAS
analysis,
able
clarify
significant
associations
phenotypic
interest
economic
value
47,432
SNPs
after
genotype
dataset
filtered.
At
threshold
p
<
1.06
×
10−6,
found
23
prioritized
(PCGs)
associated
weight
at
age
42–52
weeks
(FGF14,
GCK),
duration
laying
(CNTN4),
cycle
(SAMD12)
interval
(PHF5A,
AKR1B1,
CALD1,
ATP7B,
PIK3R4,
PTK2,
PRKCE,
FAT1,
PCM1,
CC2D2A,
BMS1,
SEMA6D,
CDH13,
SLIT3,
ATP10B,
ISCU,
LRRC75A,
LETM2,
ANKRD24).
Moreover,
co-localized
within
FGF14
gene.
Conclusions:
Based
on
our
findings,
revealed
can
be
used
as
genetic
markers
other
characteristics
attain
enhancement
further
selection.
Language: Английский
Genetic Diversity and Selection Signal Analysis of Hu Sheep Based on SNP50K BeadChip
Animals,
Journal Year:
2024,
Volume and Issue:
14(19), P. 2784 - 2784
Published: Sept. 26, 2024
This
research
is
designed
to
examine
the
genetic
diversity
and
kinship
among
Hu
sheep,
as
well
discover
genes
associated
with
crucial
economic
traits.
A
selection
of
50
unrelated
adult
male
sheep
underwent
genotyping
SNP50K
BeadChip.
Seven
indicators
were
assessed
based
on
high-quality
SNP
data:
effective
population
size
(Ne),
polymorphic
information
content
(PIC),
marker
ratio
(PN),
expected
heterozygosity
(He),
observed
(Ho),
number
alleles,
minor
allele
frequency
(MAF).
Plink
software
was
employed
compute
IBS
distance
matrix
detect
runs
homozygosity
(ROHs),
while
G
principal
component
analysis
performed
using
GCTA
software.
Selective
sweep
carried
out
ROH,
Pi,
Tajima’s
D
methodologies.
study
identified
a
total
64,734
SNPs,
which
56,522
SNPs
remained
for
downstream
after
quality
control.
The
displayed
relatively
high
diversity.
ultimately
grouped
into
12
distinct
families,
families
6,
8,
10
having
highest
numbers
individuals,
each
consisting
6
sheep.
Furthermore,
294
ROHs
detected,
majority
lengths
between
1
5
Mb,
inbreeding
coefficient
FROH
0.01.
In
addition,
41,
440,
994
candidate
by
methods,
respectively,
3
overlapping
(BMPR1B,
KCNIP4,
FAM13A).
These
results
offer
valuable
insights
future
breeding,
assessment,
management.
Language: Английский
Unveiling Genetic Potential for Equine Meat Production: A Bioinformatics Approach
Animals,
Journal Year:
2024,
Volume and Issue:
14(16), P. 2441 - 2441
Published: Aug. 22, 2024
In
view
of
the
predicted
significant
increase
in
global
meat
production,
alternative
sources
such
as
horsemeat
are
becoming
increasingly
important
due
to
their
lower
environmental
impact
and
high
nutritional
value.
This
study
aimed
identify
SNP
markers
on
GeneSeek
Language: Английский
Genome-wide Association Analysis of Key Genes for Feed Efficiency in Qingyuan Partridge chickens
Fei Ye,
No information about this author
Jie Huang,
No information about this author
Jiankang Gan
No information about this author
et al.
Poultry Science,
Journal Year:
2024,
Volume and Issue:
unknown, P. 104632 - 104632
Published: Dec. 1, 2024
Language: Английский
Genomic and Gut Microbiome Evaluations of Growth and Feed Efficiency Traits in Broilers
Animals,
Journal Year:
2024,
Volume and Issue:
14(24), P. 3615 - 3615
Published: Dec. 15, 2024
In
this
study,
we
combined
genomic
and
gut
microbiome
data
to
evaluate
13
economically
important
growth
feed
efficiency
traits
in
407
Dahen
broilers,
including
body
weight
(BW)
at
four,
six,
nine,
ten
weeks
of
age
(BW4,
BW6,
BW9,
BW10),
as
well
the
average
daily
gain
(ADG6,
ADG9,
ADG10),
conversion
ratio
(FCR6,
FCR9,
FCR10),
residual
intake
(RFI6,
RFI9,
RFI10)
for
three
growing
ages.
The
highest
ADG
lowest
FCR
were
observed
nine
six
age,
respectively.
We
obtained
47,872
high-quality
single-nucleotide
polymorphisms
(SNPs)
by
sequencing
genomes
702
amplicon
sequence
variants
(ASVs)
16S
rRNA
gene,
both
which
used
analyses
linear
mixed
models.
heritability
estimates
(±
standard
error,
SE)
ranged
from
0.103
±
0.072
0.156
0.079
BW,
0.154
0.074
0.276
ADG,
0.311
0.076
0.454
FCR,
0.413
0.077
0.609
RFI
traits.
consistently
moderate
low
negative
genetic
correlations
between
BW
(r
=
−0.562
−0.038),
whereas
strong
positive
0.564
0.979).
For
traits,
found
measures
contrast
contribution,
did
not
detect
a
microbial
contribution
all
these
estimated
microbiabilities
confidently
deviate
zero.
systematically
evaluated
contributions
host
genetics
microbes
several
results
show
that
only
had
significant
effects
on
phenotypic
variations
flock.
parameters
based
use
microbiota
data,
may
facilitate
implementation
efficient
breeding
schemes
broilers.
Language: Английский