A description of Aliichlorella ignota gen. et sp. nov. and a comparison of the efficiency of species delimitation methods in the Chlorella‐clade (Trebouxiophyceae, Chlorophyta)
Phycological Research,
Journal Year:
2024,
Volume and Issue:
72(3), P. 180 - 190
Published: April 15, 2024
Abstract
The
present
study
reports
a
new
representative
of
Chlorella
‐clade
that
was
newly
isolated
from
the
Lake
Vos'merka
(Samara
region,
Russian
Federation).
18S–ITS1–5.8S–ITS2
sequence
analyses
indicated
studied
strain
ACSSI
368
and
related
chlorelloides
,
pulchelloides
formed
an
separate
cluster
in
‐clade,
unrelated
to
holotype
genus
–
vulgaris.
independent
place
also
confirmed
by
genetic
distances.
individual
species
status
368,
compared
with
sister
C.
morphological
differences
(cell
number
per
colony,
type
chloroplast,
autospores),
distances
interspecific
level
fragment,
alone
internal
transcribed
spacer
1
(ITS1)
2
(ITS2)
sequences,
one
complementary
base
change
ITS1,
results
delimitation
using
five
methods.
A
description
provided
as
authentic
Aliichlorella
ignota
.
Currently,
includes
comb.
nov.
In
general,
six
different
algorithms
were
used
study.
ASAP
(i.e.
assemble
automatic
partitioning)
LocMin
‘local
minimum’
function)
showed
synchronous
results,
but
their
accuracy
respect
closely
somewhat
lower.
mlPTP
algorithm
simultaneously
aimed
combine
at
same
time
divide
slightly
distinguishing
strains
within
into
several
molecular
operational
taxonomic
units.
bPTP
separated
excessively
representatives
species.
generalized
mixed
Yule
coalescent
(GMYC)
consistent
most
modern
understanding
taxonomy.
However,
method
is
time‐consuming
because,
for
its
implementation,
it
necessary
carry
out
long
preparatory
work.
KoT
less
accurate
than
GMYC
although
this
because
does
not
require
preliminary
construction
ultrametric
trees.
Language: Английский
The genus Coelastrella (Chlorophyceae, Chlorophyta): molecular species delimitation, biotechnological potential, and description of a new species Coelastrella affinis sp. nov., based on an integrative taxonomic approach
Antonie van Leeuwenhoek,
Journal Year:
2024,
Volume and Issue:
117(1)
Published: Aug. 19, 2024
Language: Английский
A rapid and parallel Late Pleistocene/Holocene morphological radiation in a predaceous planktonic water flea: the case of Bythotrephes (Cladocera: Cercopagididae)
Maciej Karpowicz,
No information about this author
Д. П. Карабанов,
No information about this author
Magdalena Świsłocka-Cutter
No information about this author
et al.
Zoological Journal of the Linnean Society,
Journal Year:
2024,
Volume and Issue:
202(3)
Published: Nov. 1, 2024
Abstract
The
predatory
cladoceran
Bythotrephes
is
one
of
North
America’s
most
successful
and
impactive
invasive
species
in
freshwater
plankton
communities.
taxonomic
status
the
genus
Leydig,
1860
(Crustacea:
Cladocera:
Cercopagididae)
has
remained
unclear
a
subject
intensive
debate
for
over
150
years.
We
applied
an
integrative
taxonomy
approach
with
multi-gene
analysis
(mitochondrial
COI
12S
genes,
nuclear
18S
28S
genes)
on
80
individuals
(representing
at
least
four
morphospecies)
from
various
regions
spanning
distribution
(North
America,
Europe,
Asia)
to
resolve
within
Bythotrephes.
results
our
study
strongly
support
hypothesis
single
species—Bythotrephes
longimanus
1860,
ecological
morphs
should
be
accepted
as
junior
synonyms.
Our
work
also
elucidates
very
recent
radiation
Bythotrephes,
which
may
have
begun
rapidly
parallel
during
Late
Pleistocene,
or
even
after
last
glaciation.
Finally,
we
provide
comprehensive
biogeographic
reconstruction
dispersal
Holarctic
realm.
Europe
likely
served
centre
where
they
spread
relatively
recently
(possibly,
less
than
10
kyr)
distinguish
five
possible
events
its
evolutionary
history.
Language: Английский
Cobitis feroniae, a new spined loach from southern Latium, Italy (Teleostei: Cobitidae)
Zootaxa,
Journal Year:
2024,
Volume and Issue:
5458(3), P. 385 - 402
Published: May 29, 2024
Cobitis
feroniae,
new
species,
is
described
from
central
Italy.
It
distinguished
C.
zanandreai,
its
putatively
closest
relative,
by
having
several,
small,
black
dots
below
Z4;
minute,
spot
at
the
upper
caudal
peduncle,
and
pigmentation
in
Z2
separated
Z1
anterior
to
dorsal-fin
origin.
further
zanandreai
13
diagnostic
nucleotide
substitutions
mtDNA
COI
barcode
region,
a
K2P
nearest–neighbour
distance
of
2.9%.
Language: Английский