Population Genetics Provides Insights Into the Impact of Future Climate Change on the Genetic Structure and Distribution of Asian Warty Newts (Genus Paramesotriton)
Ecology and Evolution,
Год журнала:
2025,
Номер
15(4)
Опубликована: Апрель 1, 2025
ABSTRACT
Assessing
population
vulnerability
to
climate
change
is
essential
for
informing
management
and
conservation
strategies,
particularly
amphibians.
We
integrated
genetics
ecological
niche
modeling
(ENM)
assess
the
effect
of
on
distribution
genetic
structure
two
species
Asian
warty
newts
(
Paramesotriton
deloustali
P.
guangxiensis
)
in
northern
Vietnam.
analyzed
using
a
genome‐wide
SNP
dataset
generated
with
MIG‐seq
method.
Additionally,
we
applied
ensemble
predict
potential
under
scenarios
(SSP2‐4.5
SSP5‐8.5)
periods
2050
2090.
Population
revealed
three
primary
groups:
West,
East
+
Cao
Bang
(CB),
Quang
Ninh
(QN).
CB
exhibited
discordance
between
mitochondrial
DNA
single‐nucleotide
nuclear
polymorphism
data.
Furthermore,
gene
flow
within
populations
was
restricted,
West
QN.
Spatial
analyses
clusters
conditioned
by
environmental
variables
predicted
that
cluster
would
expand,
whereas
those
QN
decrease.
The
introgression
structures
probably
reduces
change.
ENM
analysis
these
are
susceptible
change,
resulting
reduction
their
suitable
habitat
areas
across
all
scenarios.
also
observed
shift
toward
higher
elevations.
Our
results
suggest
mountainous
Vietnam
could
serve
as
refugia
effects
intensify.
Язык: Английский
Genomic signatures of inbreeding and mutation load in tree ferns
The Plant Journal,
Год журнала:
2024,
Номер
120(4), С. 1522 - 1535
Опубликована: Окт. 10, 2024
SUMMARY
Ferns
(Pteridophyta),
as
the
second
largest
group
of
vascular
plants,
play
important
roles
in
ecosystem
functioning.
Homosporous
ferns
exhibit
a
remarkable
range
mating
systems,
from
extreme
inbreeding
to
obligate
outcrossing,
which
may
have
significant
evolutionary
and
ecological
implications.
Despite
their
significance,
impact
genome‐wide
on
genetic
diversity
mutation
load
within
fern
lineage
remain
largely
unexplored.
In
this
study,
we
utilized
whole‐genome
sequencing
investigate
genomic
signatures
three
Alsophila
tree
species.
Our
analysis
revealed
extremely
high
A.
spinulosa
,
contrast
predominantly
outcrossing
observed
costularis
latebrosa
.
This
difference
likely
reflects
divergent
systems
demographic
histories.
Consistent
with
its
propensity,
exhibits
reduced
pronounced
decline
effective
population
size.
Comparison
an
overall
reduction
deleterious
mutations
highly
inbred
highlighting
that
long‐term
contributed
purging
strongly
mutations,
thereby
prolonging
survival
this,
however,
carries
substantive
realized
potentially
instigate
future
fitness
decline.
findings
illuminate
complex
interplay
between
homosporous
ferns,
yielding
insights
implications
for
conservation
management
these
Язык: Английский