Systematics of deep-sea starfish order Brisingida (Echinodermata: Asteroidea), with a revised classification and assessments of morphological characters
Molecular Phylogenetics and Evolution,
Год журнала:
2023,
Номер
191, С. 107993 - 107993
Опубликована: Дек. 14, 2023
Brisingida
Fisher
1928
is
one
of
the
seven
currently
recognised
starfish
orders,
and
least
known
taxa
as
being
exclusive
deep-sea
inhabitants.
Modern
expeditions
revealed
their
common
occurrences
in
various
settings
including
seamounts,
basins
hydrothermal
vent
peripheral,
underlining
necessity
clarifying
global
diversity
phylogeny.
In
this
study,
we
present
a
comprehensive
molecular
phylogeny
which
encompasses
highest
taxonomic
to
date.
DNA
sequences
(COI,
16S,
12S
28S)
were
obtained
from
225
specimens
collected
ocean,
identified
58
species
spanning
15
17
extant
genera.
Phylogenetic
relationship
was
inferred
using
both
maximum
likelihood
Bayesian
inference
methods,
revealing
polyphyletic
families
genera
indicating
nonnegligible
bias
prior
morphology-based
systematics.
Based
on
new
phylogeny,
novel
classification
order,
consisting
5
genera,
proposed.
Families
Odinellidae,
Brisingasteridae
Novodiniidae
(sensu
Clark
&
Mah
2001)
resurrected
encompass
Odinella,
Brisingaster
Novodinia.
Brisingidae
Freyellidae
revised
include
11
3
respectively.
A
genus
species,
two
subgenera
combinations
are
described
key
each
family
provided.
Transformations
morphological
traits
evaluated
under
phylogenetic
hypothesis.
series
paedomorphic
characters
found
many
led
high
degree
homoplasy
across
phylogenetically
distant
groups.
Our
results
provide
insights
ontogeny
highlight
evaluate
character
convergence
sound
Язык: Английский
Phylogenetic and taxonomic revisions of Jurassic sea stars support a delayed evolutionary origin of the Asteriidae
PeerJ,
Год журнала:
2024,
Номер
12, С. e18169 - e18169
Опубликована: Окт. 31, 2024
The
superorder
Forcipulatacea
is
a
major
clade
of
sea
stars
with
approximately
400
extant
species
across
three
orders
(Forcipulatida,
Brisingida,
Zorocallida).
Over
the
past
century,
systematics
have
undergone
multiple
revisions
by
various
authors,
some
considering
numerous
families
such
as
Asteriidae,
Zoroasteridae,
Pedicellasteridae,
Stichasteridae,
Heliasteridae,
Labidiasteridae,
and
Neomorphasteridae,
while
others
recognized
only
two
(
Язык: Английский