bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2022,
Номер
unknown
Опубликована: Март 25, 2022
Abstract
The
absence
of
robust
interspecific
isolation
barriers
among
pantherines,
including
the
iconic
South
American
jaguar
(
Panthera
onca
),
led
us
to
study
molecular
evolution
typically
rapidly
evolving
reproductive
proteins
within
this
subfamily
and
related
groups.
In
study,
we
delved
into
evolutionary
forces
acting
on
Zona
Pellucida
(ZP)
gamete
interaction
protein
family
sperm-oocyte
fusion
pair
IZUMO1-JUNO
across
Carnivora
order,
distinguishing
between
Caniformia
Feliformia
suborders
anticipating
few
significant
diversifying
changes
in
Pantherinae
subfamily.
A
chromosome-resolved
genome
assembly
facilitated
coding
sequences,
enabling
reconstruction
histories.
Examining
sequence
variability
more
than
30
species
revealed
that
exhibited
significantly
lower
diversity
compared
its
sister
taxa,
.
Molecular
analyses
ZP2
ZP3,
subunits
directly
involved
sperm-recognition,
unveiled
positive
selection
,
although
no
were
linked
sperm
binding.
Structural
cross-linking
ZP
subunits,
ZP4,
ZP1
levels
or
complete
selection.
Notably,
IZUMO1
displayed
prominent
signatures
sites
basal
lineages
both
extending
along
subtree
but
absent
Conversely,
JUNO
did
not
exhibit
any
tested
clades.
Eight
Caniformia-specific
selected
detected
two
JUNO-interaction
clusters.
Our
findings
provide
for
first
time
insights
trajectories
order.
Abstract
The
absence
of
robust
interspecific
isolation
barriers
among
pantherines,
including
the
iconic
South
American
jaguar
(
Panthera
onca
),
led
us
to
study
molecular
evolution
typically
rapidly
evolving
reproductive
proteins
within
this
subfamily
and
related
groups.
In
study,
we
delved
into
evolutionary
forces
acting
on
zona
pellucida
(ZP)
gamete
interaction
protein
family
sperm‐oocyte
fusion
pair
IZUMO1‐JUNO
across
Carnivora
order,
distinguishing
between
Caniformia
Feliformia
suborders
anticipating
few
significant
diversifying
changes
in
Pantherinae
subfamily.
A
chromosome‐resolved
genome
assembly
facilitated
coding
sequences,
enabling
reconstruction
histories.
Examining
sequence
variability
more
than
30
species
revealed
that
exhibited
significantly
lower
diversity
compared
its
sister
taxa,
.
Molecular
analyses
ZP2
ZP3,
subunits
directly
involved
sperm‐recognition,
unveiled
positive
selection
,
although
no
were
linked
sperm
binding.
Structural
cross‐linking
ZP
subunits,
ZP4
ZP1
levels
or
complete
selection.
Notably,
IZUMO1
displayed
prominent
signatures
sites
basal
lineages
both
extending
along
subtree
but
absent
Conversely,
JUNO
did
not
exhibit
any
tested
clades.
Eight
Caniformia‐specific
selected
detected
two
JUNO‐interaction
clusters.
Our
findings
provide
for
first
time
insights
trajectories
order.
bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 31, 2025
Abstract
The
molecular
basis
of
sex
determination
(SD),
while
being
extensively
studied
in
model
organisms,
remains
poorly
understood
many
animal
groups.
Bivalves,
a
diverse
class
molluscs
with
variety
reproductive
modes,
represent
an
ideal
yet
challenging
clade
for
investigating
SD
and
the
evolution
sexual
systems.
However,
absence
comprehensive
framework
has
limited
progress
this
field,
particularly
regarding
study
sex-determination
related
genes
(SRGs).
In
study,
we
performed
genome-wide
sequence
evolutionary
analysis
Dmrt,
Sox,
Fox
gene
families
more
than
40
bivalve
species.
For
first
time,
provide
extensive
phylogenetic-aware
dataset
these
SRGs,
find
support
to
hypothesis
that
Dmrt-1L
Sox-H
may
act
as
primary
sex-determining
genes,
by
showing
their
high
levels
diversity
within
genomic
context.
To
validate
our
findings,
same
two
well-characterized
systems,
mammals
Drosophila
.
former,
found
male
Sry
exhibits
pattern
amino
acid
similar
bivalves,
consistent
its
role
master
regulator.
contrast,
no
such
was
observed
among
fruit
fly
cascade,
which
is
controlled
chromosomic
mechanism.
Overall,
findings
highlight
similarities
some
mammal
possibly
driven
comparable
architecture
cascades.
This
work
underscores
once
again
importance
employing
comparative
approach
when
understudied
non-model
Journal of Heredity,
Год журнала:
2024,
Номер
115(4), С. 480 - 486
Опубликована: Фев. 28, 2024
Abstract
Previous
studies
of
canid
population
and
evolutionary
genetics
have
relied
on
high-quality
domestic
dog
reference
genomes
that
been
produced
primarily
for
biomedical
trait
mapping
in
breeds.
However,
the
absence
highly
contiguous
from
other
Canis
species
like
gray
wolf
coyote,
represent
additional
distinct
demographic
histories,
may
bias
inferences
regarding
interspecific
genetic
diversity
phylogenetic
relationships.
Here,
we
present
single
haplotype
de
novo
genome
assemblies
generated
by
applying
trio-binning
approach
to
long
sequence
reads
a
female
first-generation
hybrid
coyote
mating.
The
were
contiguous,
with
contig
N50
sizes
44.6
42.0
Mb
respectively.
Genome
scaffolding
alignments
between
two
published
showed
near
complete
collinearity,
one
exception:
coyote-specific
chromosome
fission
13
fusion
proximal
portion
8,
retaining
Canis-typical
haploid
number
2n
=
78.
We
evaluated
quality
previous
RADseq
data
334
canids
found
nearly
identical
patterns
among
regional
populations
regardless
used
alignment
(dog,
or
wolf).
These
novel
will
be
important
resources
proper
accurate
inference
demography,
taxonomic
evaluation,
conservation
genetics.
Molecular Biology and Evolution,
Год журнала:
2023,
Номер
40(12)
Опубликована: Ноя. 21, 2023
Even
in
the
genomics
era,
phylogeny
of
Neotropical
small
felids
comprised
genus
Leopardus
remains
contentious.
We
used
whole-genome
resequencing
data
to
construct
a
time-calibrated
consensus
this
group,
quantify
phylogenomic
discordance,
test
for
interspecies
introgression,
and
assess
patterns
genetic
diversity
demographic
history.
infer
that
radiation
started
Early
Pliocene
as
an
initial
speciation
burst,
followed
by
another
its
subgenus
Oncifelis
during
Pleistocene.
Our
findings
challenge
long-held
notion
ocelot
(Leopardus
pardalis)
margay
(L.
wiedii)
are
sister
species
instead
indicate
is
most
closely
related
enigmatic
Andean
cat
jacobita),
whose
reported
here
first
time.
In
addition,
we
found
newly
sampled
tiger
tigrinus
pardinoides)
population
from
Colombia
associates
with
Central
American
cats
oncilla).
Genealogical
discordance
was
largely
attributable
incomplete
lineage
sorting,
yet
augmented
strong
gene
flow
between
ancestral
branch
Oncifelis,
well
Geoffroy's
geoffroyi)
southern
guttulus).
Contrasting
trajectories
have
led
disparate
levels
current
genomic
diversity,
nearly
tenfold
difference
heterozygosity
ocelot,
spanning
entire
range
variability
extant
felids.
analyses
improved
our
understanding
history
felid
radiation,
highlight
benefits
inference
embracing
many
heterogeneous
signals
scattered
across
genome.
Scientific Reports,
Год журнала:
2024,
Номер
14(1)
Опубликована: Апрель 5, 2024
Abstract
The
fishing
cat,
Prionailurus
viverrinus
,
faces
a
population
decline,
increasing
the
importance
of
maintaining
healthy
zoo
populations.
Unfortunately,
zoo-managed
individuals
currently
face
high
prevalence
transitional
cell
carcinoma
(TCC),
form
bladder
cancer.
To
investigate
genetics
inherited
diseases
among
captive
cats,
we
present
chromosome-scale
assembly,
generate
pedigree
population,
reaffirm
close
genetic
relationship
with
Asian
leopard
cat
(
bengalensis
),
and
identify
7.4
million
single
nucleotide
variants
(SNVs)
23,432
structural
(SVs)
from
whole
genome
sequencing
(WGS)
data
TCC
cats.
Only
BRCA2
was
found
to
have
recurrent
number
missense
mutations
in
cats
diagnosed
when
compared
human
cancer
risk
variants.
These
new
genomic
resources
will
aid
conservation
efforts
improve
their
fitness
enhance
comparative
study
feline
genomes.
Genes,
Год журнала:
2024,
Номер
15(3), С. 368 - 368
Опубликована: Март 16, 2024
Many
coat
color,
behavioral
and
morphological
traits
are
specific
fixed
across
cat
breeds,
with
several
variants
influencing
these
being
common
among
different
breeds.
In
the
domestic
cat,
rexoid
mutations
have
been
documented
in
Cornish
Rex,
four
bp
deletion
LPAR6
gene
has
found
to
cause
a
frame
shift
premature
stop
codon.
addition
coat,
Rex
cats
also
characteristic
head,
ear
shape
body
type.
Analysis
of
selection
signatures
genome
revealed
regions
that
under
selective
pressure.
One
is
located
CFA
B4,
region
where
ALX1
located.
The
Burmese
disrupts
cranial
morphogenesis
causes
brachycephaly
heterozygous
state.
our
study,
we
confirmed
presence
20
F1
hybrids
between
cat.
However,
did
not
confirm
cats.
Genome-wide
signature
analysis
was
performed
using
ROH
islands
integrated
haplotype
score
(iHS)
statistics
based
on
publicly
available
SNP
array
data
11
were
detected
chromosomes
A1,
A3,
C2,
B1,
B4
D1.
Genome Research,
Год журнала:
2024,
Номер
34(5), С. 655 - 664
Опубликована: Май 1, 2024
Genomic
data
from
species
of
the
cat
family
Felidae
promise
to
stimulate
veterinary
and
human
medical
advances,
clarify
coherence
genome
organization.
We
describe
how
interspecies
hybrids
have
been
instrumental
in
genetic
analysis
cats,
first
maps
propelling
genomes
toward
T2T
standard
set
by
project.
Genotype-to-phenotype
mapping
models
has
revealed
dozens
health-related
variants,
molecular
basis
for
mammalian
pigmentation
patterning,
species-specific
adaptations.
Improved
genomic
surveillance
natural
captive
populations
across
tree
will
increase
our
understanding
architecture
traits,
population
dynamics,
guide
a
future
genome-enabled
biodiversity
conservation.