Conservation Biology,
Год журнала:
2020,
Номер
35(3), С. 909 - 920
Опубликована: Авг. 12, 2020
Abstract
The
availability
of
genomic
data
for
an
increasing
number
species
makes
it
possible
to
incorporate
evolutionary
processes
into
conservation
plans.
Recent
studies
show
how
genetic
can
inform
spatial
prioritization
(SCP),
but
they
focus
on
metrics
diversity
and
distinctness
derived
primarily
from
neutral
sets.
Identifying
adaptive
markers
provide
important
information
regarding
the
capacity
populations
adapt
environmental
change.
Yet,
effect
including
based
SCP
in
comparison
more
widely
used
has
not
been
explored.
We
existing
a
commercially
exploited
species,
giant
California
sea
cucumber
(
Parastichopus
californicus
),
perform
coastal
region
British
Columbia
(BC),
Canada.
Using
RAD‐seq
set
717
P.
individuals
across
24
sampling
locations,
we
identified
putatively
(i.e.,
candidate)
single
nucleotide
polymorphisms
(SNPs)
genotype–environment
associations
with
seafloor
temperature.
calculated
various
both
candidate
SNPs
compared
outcomes
independent
combinations
metrics.
Priority
areas
varied
depending
whether
or
were
specific
metric
used.
For
example,
targeting
sites
high
frequency
warm‐temperature‐associated
alleles
support
persistence
under
future
warming
prioritized
southern
region.
In
contrast,
expected
heterozygosity
at
loci
uncertainty
north.
When
combining
metrics,
all
scenarios
generated
intermediate
solutions,
protecting
that
span
latitudinal
thermal
gradients.
Our
results
demonstrate
distinguishing
between
affect
solutions
emphasize
importance
defining
objectives
when
choosing
among
SCP.
Adaptive
genomics
may
help
predicting
how
a
species
will
respond
to
future
environmental
changes.
Genomic
signatures
of
local
adaptation
in
marine
organisms
are
often
driven
by
selective
agents
impacting
the
physiology
organisms.
With
one
highest
salinity
level,
Mediterranean
Sea
provides
an
excellent
model
investigate
adaptive
genomic
divergence
underlying
adaptation.
In
present
study,
we
combined
six
genome
scan
methods
detect
potential
signal
selection
striped
red
mullet
(Mullus
surmuletus)
populations
distributed
across
wide
gradient.
We
then
blasted
these
outlier
sequences
on
published
fish
resources
order
identify
relevant
candidate
genes
for
this
species.
Altogether,
found
173
outliers
out
1153
SNPs.
Using
blast
approach,
discovered
four
SNPs
belonging
three
potentially
implicated
M.
surmuletus
salinity.
The
allele
frequency
at
significantly
increases
with
independently
from
effect
longitude.
gene
associated
SNP,
SOCS2,
encodes
inhibitor
cytokine
and
has
previously
been
shown
be
expressed
under
osmotic
pressure
other
Additionally,
our
results
showed
that
not
correcting
spatial
structure
can
still
efficient
strategy
footprints
selection,
when
variation
confounded,
then,
second
step
represents
conservative
method.
outcomes
bring
evidences
footprint
which
suggest
response
conditions
Sea.
Additional
data
such
as
sequencing
full-genome
transcriptome
analyses
expression
would
provide
new
insights
regarding
possibility
some
locally
adapted
their
saline
environment.
Molecular Ecology,
Год журнала:
2017,
Номер
26(24), С. 6784 - 6800
Опубликована: Окт. 31, 2017
Migration
is
a
ubiquitous
life
history
trait
with
profound
evolutionary
and
ecological
consequences.
Recent
developments
in
telemetry
genomics,
when
combined,
can
bring
significant
insights
on
the
migratory
ecology
of
nonmodel
organisms
wild.
Here,
we
used
this
integrative
approach
to
document
dispersal,
gene
flow
potential
for
local
adaptation
anadromous
Arctic
Char
from
six
rivers
Canadian
Arctic.
Acoustic
data
124
tracked
individuals
indicated
asymmetric
large
proportion
fish
(72%)
tagged
three
different
migrating
up
same
short
river
fall.
Population
genomics
6,136
SNP
markers
revealed
weak,
albeit
significant,
population
differentiation
(average
pairwise
FST
=
0.011)
dispersal
was
also
by
assignments.
Approximate
Bayesian
computation
simulations
suggested
presence
flow,
although
opposite
direction
that
observed
data,
suggesting
does
not
necessarily
lead
flow.
These
observations
home
their
natal
spawn,
but
may
overwinter
shortest
route
minimize
costs
migration
nonbreeding
years.
Genome
scans
genetic-environment
associations
identified
90
outlier
putatively
under
selection,
23
which
were
or
near
gene.
Of
these,
at
least
four
involved
muscle
cardiac
function,
consistent
hypothesis
harshness
could
drive
adaptation.
Our
study
illustrates
power
integrating
migrations
logistically
challenging
environments
such
as
Evolutionary Applications,
Год журнала:
2018,
Номер
11(9), С. 1527 - 1539
Опубликована: Апрель 20, 2018
Coexistence
in
the
same
habitat
of
closely
related
yet
genetically
different
populations
is
a
phenomenon
that
challenges
our
understanding
local
population
structure
and
adaptation.
Identifying
underlying
mechanisms
for
such
coexistence
can
yield
new
insight
into
adaptive
evolution,
diversification
potential
organisms
to
adapt
persist
response
changing
environment.
Recent
studies
have
documented
cryptic,
sympatric
Atlantic
cod
(Gadus
morhua)
coastal
areas.
We
analysed
genetic
origin
6,483
individual
sampled
annually
over
14
years
from
125
locations
along
Norwegian
Skagerrak
coast
document
stable
two
divergent
ecotypes
throughout
study
area
period.
A
"fjord"
ecotype
dominated
numbers
deep
inside
fjords
while
"North
Sea"
was
only
type
found
offshore
North
Sea.
Both
coexisted
similar
proportions
habitats
at
all
spatial
scales.
The
size-at-age
Sea
on
average
exceeded
fjord
by
20%
length
80%
weight
across
habitats.
Different
growth
size
among
individuals
types
might
be
one
several
ecologically
significant
variables
allow
within
habitat.
Management
plans,
biodiversity
initiatives
other
mitigation
strategies
do
not
account
mixture
species
are
unlikely
meet
objectives
sustainability
fish
fisheries.
Conservation Biology,
Год журнала:
2020,
Номер
35(3), С. 909 - 920
Опубликована: Авг. 12, 2020
Abstract
The
availability
of
genomic
data
for
an
increasing
number
species
makes
it
possible
to
incorporate
evolutionary
processes
into
conservation
plans.
Recent
studies
show
how
genetic
can
inform
spatial
prioritization
(SCP),
but
they
focus
on
metrics
diversity
and
distinctness
derived
primarily
from
neutral
sets.
Identifying
adaptive
markers
provide
important
information
regarding
the
capacity
populations
adapt
environmental
change.
Yet,
effect
including
based
SCP
in
comparison
more
widely
used
has
not
been
explored.
We
existing
a
commercially
exploited
species,
giant
California
sea
cucumber
(
Parastichopus
californicus
),
perform
coastal
region
British
Columbia
(BC),
Canada.
Using
RAD‐seq
set
717
P.
individuals
across
24
sampling
locations,
we
identified
putatively
(i.e.,
candidate)
single
nucleotide
polymorphisms
(SNPs)
genotype–environment
associations
with
seafloor
temperature.
calculated
various
both
candidate
SNPs
compared
outcomes
independent
combinations
metrics.
Priority
areas
varied
depending
whether
or
were
specific
metric
used.
For
example,
targeting
sites
high
frequency
warm‐temperature‐associated
alleles
support
persistence
under
future
warming
prioritized
southern
region.
In
contrast,
expected
heterozygosity
at
loci
uncertainty
north.
When
combining
metrics,
all
scenarios
generated
intermediate
solutions,
protecting
that
span
latitudinal
thermal
gradients.
Our
results
demonstrate
distinguishing
between
affect
solutions
emphasize
importance
defining
objectives
when
choosing
among
SCP.