Geophysical Research Letters,
Journal Year:
2024,
Volume and Issue:
51(22)
Published: Nov. 22, 2024
Abstract
Forecasts
of
root
growth
and
carbon
sequestration
under
global
change
are
compromised
by
uncertainty
in
how
plants
will
allocate
biomass
between
above
belowground
pools.
Here,
we
develop
a
simple
model
to
assess
whether
functional
balance
theory
can
explain
complex
allocation
response
observed
brackish
marsh
experimental
warming
elevated
CO
2
.
Our
shows
treatment‐driven
changes
nitrogen
supply
demand
divergent
observations
(i.e.,
maximum
responses
intermediate
).
The
also
reveals
surprising
interaction
eutrophication,
where
enhanced
N
loading
coastal
marshes
may
reduce
adverse
impacts
on
growth.
findings
provide
mechanistic
basis
for
incorporating
into
forecast
models
evolution.
They
general
example
using
ecological
decompose
net
multi‐factor
experiments
constituent
processes.
Molecular Ecology,
Journal Year:
2023,
Volume and Issue:
33(10)
Published: March 1, 2023
How
does
standing
genetic
variation
affect
polygenic
adaptation
in
recombining
populations?
Despite
a
large
body
of
work
quantitative
genetics,
epistatic
and
weak
additive
fitness
effects
among
simultaneously
segregating
variants
are
difficult
to
capture
experimentally
or
predict
theoretically.
In
this
study,
we
simulated
on
landscapes
with
tunable
ruggedness
driven
by
populations.
We
confirmed
that
recombination
hinders
the
movement
population
through
rugged
landscape.
When
surveying
effect
epistasis
fixation
alleles,
found
combined
high
probabilities
lead
preferential
alleles
had
initial
frequency.
This
indicates
positive
escape
from
being
broken
down
when
they
start
at
further
extract
direct
selection
coefficients
pairwise
along
adaptive
path.
taking
final
fixed
genotype
as
reference
background,
observe
that,
path,
beneficial
appears
stronger
weaker
than
underlying
Quantitatively,
ratio
is
smaller
path
(
New Phytologist,
Journal Year:
2024,
Volume and Issue:
244(2), P. 683 - 693
Published: Aug. 14, 2024
Summary
Climate
and
edaphic
properties
drive
the
biogeographic
distribution
of
dominant
soil
microbial
phylotypes
in
terrestrial
ecosystems.
However,
impact
plant
species
their
root
nutritional
traits
on
coastal
wetlands
remains
unclear.
Here,
we
investigated
100
halophyte
samples
bacterial
communities
corresponding
from
across
eastern
China.
This
study
spans
22°
latitude,
covering
over
2500
km
north
to
south.
We
found
that
1%
accounted
for
nearly
30%
community
abundance,
suggesting
a
few
dominated
wetlands.
These
could
be
grouped
into
three
ecological
clusters
as
per
preference
climatic
(temperature
precipitation),
(soil
carbon
nitrogen),
factors
(halophyte
vegetation,
carbon,
nitrogen).
further
provide
novel
evidence
traits,
especially
C
N,
can
strongly
influence
these
clusters.
Taken
together,
our
provides
solid
revealing
dominance
specific
complex
interactions
with
environment,
highlighting
importance
microbiome
wetland
Ecology and Evolution,
Journal Year:
2025,
Volume and Issue:
15(3)
Published: March 1, 2025
ABSTRACT
Whole
genome
duplication
(WGD
or
polyploidization)
events
shape
plant
evolution,
altering
ecological
responses
and
traits,
particularly
those
related
to
cell
tissue
size.
We
studied
genetic
diversity
phenotypic
plasticity
in
Spartina
populations,
focusing
on
hybrid
(
×
townsendii
)
allopolyploid
S.
anglica
cytotypes
Wadden
Sea
salt
marshes.
Our
results
reveal
low
both
a
complex
response
of
traits
global
change
factors
(drought,
elevated
CO
2
concentration).
While
WGD
increased
stomatal
length,
varied
between
cytotypes,
with
allopolyploids
showing
higher
plasticity,
especially
under
.
Biomass
allocation
patterns
differed
conditions,
suggesting
distinct
effects
ecosystem
functioning,
such
as
belowground
carbon
sequestration
cycling.
The
allopolyploid's
comparatively
fewer,
larger‐diameter
stems
may
affect
aboveground
functions
differently,
including
sediment
trapping
the
slowing
tidal
currents.
Despite
similar
backgrounds,
did
not
consistently
exhibit
challenging
previous
assumptions.
findings
highlight
interplay
hybridization,
WGD,
change,
emphasizing
importance
considering
polyploidization
understanding
adaptation
evolutionary
dynamics.
New Phytologist,
Journal Year:
2023,
Volume and Issue:
240(5), P. 2121 - 2136
Published: July 14, 2023
Summary
Predicting
the
fate
of
coastal
marshes
requires
understanding
how
plants
respond
to
rapid
environmental
change.
Environmental
change
can
elicit
shifts
in
trait
variation
attributable
phenotypic
plasticity
and
act
as
selective
agents
shift
means,
resulting
evolution.
Comparably,
less
is
known
about
potential
for
responses
reflect
evolution
plasticity.
Here,
we
assessed
relative
magnitude
eco‐evolutionary
interacting
global
factors
using
a
multifactorial
experiment.
We
exposed
replicates
32
Schoenoplectus
americanus
genotypes
‘resurrected’
from
century‐long,
soil‐stored
seed
banks
ambient
or
elevated
CO
2
,
varying
levels
inundation,
presence
competing
marsh
grass,
across
two
sites
with
different
salinities.
Comparisons
among
age
cohorts
provenances
indicated
that
has
evolved
five
seven
traits
measured.
Accounting
evolutionary
(i.e.
sources
heritable
variation)
statistical
models
explained
an
additional
9–31%
variation.
Our
findings
indicate
mediate
ecological
The
plant
over
last
century
suggests
could
play
role
pacing
future
ecosystem
response
