bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2023,
Номер
unknown
Опубликована: Апрель 29, 2023
ABSTRACT
Species
are
seen
as
the
fundamental
unit
of
biotic
diversity,
and
thus
their
delimitation
is
crucial
for
defining
measures
diversity
assessments
studying
evolution.
Differences
between
species
have
traditionally
been
associated
with
variation
in
morphology.
And
yet,
discovery
cryptic
suggests
that
evolution
distinct
lineages
does
not
necessarily
involve
trait
differences.
Here,
we
analyze
1,684,987
variant
sites
over
4000
genes
more
than
400
samples
to
show
how
a
tropical
montane
plant
lineage
(
Geonoma
undata
complex)
composed
numerous
unrecognized
genetic
groups
morphologically
distinct.
We
find
11
14
clades
do
correspond
three
currently
recognized
species.
Most
genetically
independent
geographic
distance
topography
most
important
factors
determining
this
divergence.
This
match
model
an
adaptive
radiation,
but
instead,
constitutes
first
example
hyper-cryptic
radiation
mountains.
PeerJ,
Год журнала:
2024,
Номер
12, С. e17712 - e17712
Опубликована: Авг. 20, 2024
Centrolenidae
is
a
Neotropical
family
widely
distributed
in
Central
and
South
America,
with
its
species
richness
concentrated
the
tropical
Andes.
Several
taxonomic
problems
have
been
identified
within
this
family,
mostly
related
to
broad
geographic
distributions.
In
study,
we
assessed
redefined
boundaries
of
Centrolene
buckleyi
complex,
formally
described
two
new
from
Andes
Ecuador.
These
taxa
are
recognized
by
combination
morphometric,
osteological,
acoustic,
genetic
data.
Following
IUCN
criteria,
propose
that
should
be
considered
as
Endangered
(EN),
mainly
because
their
small
distributions
habitat
loss.
The
C.
complex
provides
insights
into
biogeography
closely
Andean
species.
As
other
glassfrogs,
speciation
seems
mediated
linearity
Andes,
where
gene
flow
can
restricted
topography
and,
also,
local
extinctions.
Taxon,
Год журнала:
2023,
Номер
72(3), С. 501 - 514
Опубликована: Апрель 8, 2023
Abstract
Hyperdominant
trees
in
Amazonia
account
for
half
of
the
individual
(>10
cm
dbh)
forest,
and
thus
play
a
crucial
role
ecosystem
dynamics.
However,
several
these
widespread
hyperdominant
species
may
be
complexes
hiding
cryptic
diversity
that
can
affect
richness
estimates
conservation
priorities.
Here,
we
study
intraspecific
variation
Astrocaryum
murumuru
(Arecaceae),
keystone
Amazonia,
also
known
as
sect.
Huicungo
,
complex
15
understory
to
subcanopy
palm
species.
Using
chloroplast
DNA
from
genome
skimming
(>66
kbp
alignment)
Bayesian
framework,
present
evidence
A.
represents
three
separately
evolving
lineages,
suggesting
section
is
not
single
species,
morphology‐based
an
over‐representation.
Genome
data
did
fully
resolve
species‐level
phylogenetic
relationships
mostly
because
gene
discordance
paraphyly
most
Contrary
previous
nuclear‐based
analysis,
genomic
recover
monophyletic,
but
yielded
monophyly
increased
number
(six)
complex.
Interspecific
showed
geographic
pattern,
traditional
classification
was
supported.
Our
phylogenomic
results
are
discussed
light
earlier
phylogeographical
studies
using
Sanger
sequencing.
findings
show
utility
delimitation
analyses
uncover
largest
evergreen
tropical
forest.
Evolutionary Applications,
Год журнала:
2024,
Номер
17(8)
Опубликована: Июль 31, 2024
Abstract
Conservation
and
sustainable
management
of
lineages
providing
non‐timber
forest
products
are
imperative
under
the
current
global
biodiversity
loss.
Most
species,
however,
lack
genomic
studies
that
characterize
their
intraspecific
variation
evolutionary
history,
which
inform
species'
conservation
practices.
Contrary
to
many
in
Andean
hotspot
exhibit
high
diversification,
genus
Parajubaea
(Arecaceae)
has
only
three
species
despite
genus'
origin
22
million
years
ago.
Two
palm
P.
torallyi
sunkha
,
endemic
Andes
Bolivia
listed
as
IUCN
endangered.
The
third
cocoides
is
a
vulnerable
with
unknown
wild
populations.
We
investigated
relationships
genetic
diversity
structure
Bolivian
Sequencing
five
low‐copy
nuclear
genes
(3753
bp)
challenged
hypothesis
cultigen
originated
from
species.
further
obtained
up
15,134
de
novo
single‐nucleotide
polymorphism
markers
by
genotyping‐by‐sequencing
194
individuals.
Our
total
DNA
sequencing
effort
rejected
taxonomic
separation
two
As
expected
for
narrow
we
observed
low
diversity,
but
no
inbreeding
signal.
found
clusters
shaped
geographic
distance,
use
propose
units.
Different
percentages
missing
genotypic
data
did
not
impact
units
recommend
situ
creating
new
protected
areas,
ex
through
seed
collection.
bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2023,
Номер
unknown
Опубликована: Апрель 29, 2023
ABSTRACT
Species
are
seen
as
the
fundamental
unit
of
biotic
diversity,
and
thus
their
delimitation
is
crucial
for
defining
measures
diversity
assessments
studying
evolution.
Differences
between
species
have
traditionally
been
associated
with
variation
in
morphology.
And
yet,
discovery
cryptic
suggests
that
evolution
distinct
lineages
does
not
necessarily
involve
trait
differences.
Here,
we
analyze
1,684,987
variant
sites
over
4000
genes
more
than
400
samples
to
show
how
a
tropical
montane
plant
lineage
(
Geonoma
undata
complex)
composed
numerous
unrecognized
genetic
groups
morphologically
distinct.
We
find
11
14
clades
do
correspond
three
currently
recognized
species.
Most
genetically
independent
geographic
distance
topography
most
important
factors
determining
this
divergence.
This
match
model
an
adaptive
radiation,
but
instead,
constitutes
first
example
hyper-cryptic
radiation
mountains.
