Chloroplast phylogenomics and the taxonomy of Saxifraga section Ciliatae (Saxifragaceae)
Rui Yuan,
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Xiaolei Ma,
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Zhuoxin Zhang
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et al.
Ecology and Evolution,
Journal Year:
2023,
Volume and Issue:
13(1)
Published: Jan. 1, 2023
Abstract
Comprising
ca.
200
species,
Saxifraga
sect.
Ciliatae
is
the
most
species‐rich
section
of
s.str.,
whose
center
diversity
in
Tibeto‐Himalayan
region.
The
infra‐sectional
classification
still
debate
due
to
high
level
species
richness,
as
well
remarkable
variations
habitat,
morphology,
physiology
and
life
cycles.
Subdivisions
this
proposed
various
taxonomic
systems
have
not
been
adequately
tested
previous
phylogenetic
studies,
partly
low
sampling
density,
but
also
use
few
DNA
markers.
In
order
achieve
a
more
robust
,
complete
chloroplast
genomes
94
taxa
from
were
analyzed,
which
93
newly
sequenced,
assembled
annotated.
length
plastomes
range
143,479
159,938
bp,
encoding
75
79
unique
protein‐coding
genes
(PCGs).
Analyses
revealed
conservation
structural
organization,
gene
arrangement,
content.
Gene
loss
changes
IR
boundaries
detected
extremely
frequency.
molecular
tree
concatenated
PCGs
genome
sequences
exhibited
resolution
support
values
confirms
that
monophyletic.
Three
well‐supported
clades
within
agree
relatively
with
subsectional
taxonomy
Gornall
(1987),
some
minor
modifications
should
be
made.
Firstly,
monotypic
subsection
Cinerascentes
abandoned
its
constituent
S
.
cinerascens
assigned
subsect.
Gemmiparae
Secondly,
subsections
Rosulares
Serpyllifoliae
merged
become
Section
thus
comprises:
Hirculoideae
Engl.
&
Irmsch.;
Gornall;
Flagellares
(C.
B.
Clarke)
Irmsch.
Hemisphaericae
(Engl.
Irmsch.)
Gornall.
Language: Английский
Investigation of phylogenetic relationships within Saxifraga diversifolia complex (Saxifragaceae) based on restriction‐site associated DNA sequence markers
Ecology and Evolution,
Journal Year:
2023,
Volume and Issue:
13(11)
Published: Nov. 1, 2023
Abstract
Subsect.
Hirculoideae
Engl.
&
Irmsch.,
belonging
to
Saxifraga
sect.
Ciliatae
Haw.,
has
high
species
richness.
It
can
be
divided
into
S.
diversifolia
,
pseudohirculus
and
sinomontana
complexes
based
on
morphological
characteristics.
The
with
prominent
leaf
veins
the
posterior
edge
were
placed
in
complex,
which
is
mainly
distributed
eastern
southern
margins
of
Qinghai‐Tibetan
Plateau.
In
this
study,
53
samples,
representing
15
33
described
sequenced
using
Restriction‐site
Associated
DNA
Sequence
(RAD‐seq)
technique.
A
total
111,938
high‐quality
SNP
loci
screened
investigate
phylogenetic
relationships
within
complex.
result
neighbor‐joining
(NJ)
tree
shows
that
complex
a
paraphyletic
group.
Despite
some
inconsistencies
as
revealed
by
genetic
structural
analysis,
clustering
results
representative
reconstructed
both
NJ
principal
component
analysis
analyses
support
previous
biogeographic
evidences.
addition,
long‐distance
gene
flow
events
for
11
taxa
detected
respectively
from
implicans
1
2,
maxionggouensis
nigroglandulifera
.
These
findings
may
improve
our
comprehension
phylogeny,
classification,
evolution
Language: Английский
Complete chloroplast genome of Saxifraga fortunei var. pilosissima (Saxifragaceae) endemic to Ulleung-do island, Korea
Journal of Asia-Pacific Biodiversity,
Journal Year:
2024,
Volume and Issue:
17(4), P. 792 - 795
Published: June 29, 2024
The
Saxifraga
fortunei
var.
pilosissima
Nakai
is
an
endemic
species
to
Ulleung-do
island.
Here
we
report
the
complete
chloroplast
genome
sequence
of
S.
pilosissima,
which
was
151,186
bp
in
total
length
with
large
single
copy
(LSC)
region
83,536
bp,
small
(SSC)
17,644
and
two
inverted
repeat
(IR)
regions
25,003
bp.
contained
131
genes,
including
86
protein-coding,
37
tRNA,
8
rRNA
GC
(guanine-cytosine)
content
37.8%.
Additionally,
found
that
exhibited
intron
loss
rpl2
gene.
Within
IR
region,
six
protein-coding
seven
tRNA
four
genes
were
duplicated.
In
there
are
a
17
containing
introns.
Among
them,
15
contain
one
each,
while
Phylogenetic
analysis
based
on
representative
genomes
Saxifragaceae
suggested
genus
monophyletic
placed
sect.
Irregulares
Haw.
grouped
fortunei,
rufescens,
stolonifera
strong
maximum
likelihood
bootstrap
support
value.
Language: Английский
Chloroplast genome of plantago major , a medicinal plant in China
Yingying Liu,
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Dongnan Hu,
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Weihuai Zeng
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et al.
Mitochondrial DNA Part B,
Journal Year:
2024,
Volume and Issue:
9(7), P. 881 - 885
Published: July 2, 2024
(Plantaginaceae)
is
a
medicinal
plant
in
Chinese
folk
culture,
known
for
its
famous
components
such
as
plantagomain.
In
this
study,
we
conducted
genome
sequencing
of
Language: Английский
The complete plastome of Saxifraga giraldiana Engler and its phylogenetic analysis
Xin Liang,
No information about this author
Luxuan Yang,
No information about this author
Xiaoting Xu
No information about this author
et al.
Mitochondrial DNA Part B,
Journal Year:
2024,
Volume and Issue:
9(9), P. 1157 - 1161
Published: Aug. 30, 2024
Saxifraga
giraldiana
Engler
is
a
common
subalpine
and
alpine
plant
belonging
to
Saxifragaceae.
However,
the
genetic
diversity
of
this
species
has
remained
be
explored.
In
study,
we
have
assembled
characterized
complete
chloroplast
genome
S.
giraldiana,
filling
knowledge
gap
uncovering
its
composition.
The
147,267
bp
long
contains
131
genes,
including
85
protein-coding
38
tRNA
eight
rRNA
genes.
Furthermore,
performed
phylogenetic
analysis
19
representative
within
Saxifraga.
As
result,
found
that
together
with
implicans
stellariifolia,
forms
monophyletic
group.
These
findings
implications
for
conservation
utilization
giraldiana.
Language: Английский
Characterization of the complete plastid genome and phylogenetic implication of Micranthes octopetala (Nakai) Y.I.Kim & Y.D.Kim (Saxifragaceae), endemic to Korea
Mitochondrial DNA Part B,
Journal Year:
2023,
Volume and Issue:
8(9), P. 967 - 972
Published: Sept. 2, 2023
Micranthes
octopetala
(Nakai)
Y.I.Kim
&
Y.D.
Kim
et
al.
2015,
which
belongs
to
the
family
Saxifragaceae,
is
a
perennial
herb
endemic
Korea.
M.
was
originally
treated
as
synonym
of
manchuriensis.
However,
in
molecular
phylogenetic
analysis
confirmed
that
an
independent
species.
In
this
study,
plastid
genome
sequenced
for
first
time,
and
taxonomic
position
species
identified.
The
complete
has
total
length
149
751
bp
(large
single
copy:
83
083
bp;
small
17
196
inverted
repeat:
24
736
bp),
containing
130
genes,
including
79
CDS,
30
tRNAs,
4
rRNAs.
Moreover,
absence
intron
rpl2
gene,
common
feature
confirmed.
Phylogenetic
based
on
protein-coding
genes
from
21
revealed
genus
Micranthes,
being
sister
other
obtained
study
provides
fundamental
information
future
studies
Micranthes.
Language: Английский