Genes,
Journal Year:
2023,
Volume and Issue:
15(1), P. 20 - 20
Published: Dec. 22, 2023
Luisia,
a
genus
of
the
subtribe
Aeridinae
Orchidaceae,
comprises
ca.
40
species.
Members
Luisia
exhibit
unique
morphological
characteristics
and
represent
valuable
ornamental
orchid
genus.
However,
due
to
scarcity
distinct
characters,
species
identification
within
this
is
ambiguous
controversial.
In
present
study,
next-generation
sequencing
(NGS)
methods
were
used
assemble
plastomes
five
compare
them
with
one
publicly
available
plastid
genome
data.
The
possessed
quadripartite
structure,
sizes
ranging
from
146,243
bp
147,430
bp.
six
contained
total
120
genes,
comprising
74
protein-coding
38
tRNA
genes
eight
rRNA
genes.
Notably,
all
ndh
pseudogenized
or
lost.
An
analysis
codon
usage
bias
showed
that
leucine
(Leu)
exhibited
highest
frequency,
while
cysteine
(Cys)
lowest
frequency.
A
57
64
SSRs
42
49
long
repeats
identified.
Five
regions
coding
sequences
identified
for
DNA
barcodes,
based
on
nucleotide
diversity
(Pi)
analysis.
constituted
monophyletic
group
sister
Paraphalaenopsis
strong
support.
Our
study
deepens
understanding
identification,
plastome
evolution
phylogenetic
positions
Luisia.
International Journal of Molecular Sciences,
Journal Year:
2023,
Volume and Issue:
24(13), P. 11167 - 11167
Published: July 6, 2023
Paraphalaenopsis,
a
genus
of
perennial
herbs
from
the
family
Orchidaceae,
contains
number
ornamental
species.
However,
there
is
no
information
on
chloroplast
genomes
which
limits
our
studies
this
genus.
In
study,
we
reported
three
species
Paraphalaenopsis
(P.
labukensis,
P.
denevel,
and
laycockii
‘Semi-alba’)
performed
comprehensive
comparative
analysis.
These
showed
typical
quadripartile
structure.
Their
lengths
ranged
147,311
bp
to
149,240
bp.
Each
genome
contained
120
unique
genes,
including
74
protein-coding
38
tRNA
8
rRNA
genes.
Comparative
analysis
revealed
major
differences
in
sequence
divergence
genomes.
addition,
six
hypervariable
regions
were
identified
(psbM-trnDGUC,
psbB,
ccsA,
trnKUUU,
trnSGCU-trnGUCC,
rps16-trnQUUG)
that
can
be
used
as
DNA
molecular
markers.
Phylogenetic
relationships
determined
using
28
12
genera
Aeridinae.
Results
suggested
was
clade
Aeridinae
sister
Holcoglossum-Vanda
clade,
with
100%
bootstrap
support
within
The
findings
study
provided
foundation
for
future
phylogenetic
International Journal of Molecular Sciences,
Journal Year:
2023,
Volume and Issue:
24(15), P. 12473 - 12473
Published: Aug. 5, 2023
Aerides
Lour.
(Orchidaceae,
Aeridinae)
is
a
group
of
epiphytic
orchids
with
high
ornamental
value,
mainly
distributed
in
tropical
and
subtropical
forests,
that
comprises
approximately
20
species.
The
species
are
great
value
floriculture
garden
designing
because
their
beautiful
flower
shapes
colors.
Although
the
morphological
boundaries
clearly
defined,
relationship
between
other
closely
related
genera
still
ambiguous
terms
phylogeny.
To
better
understand
phylogenetic
relationships,
this
study
used
next-generation
sequencing
technology
to
investigate
phylogeny
DNA
barcoding
taxonomic
unit
using
genetic
information
from
six
plastid
genomes.
quadripartite-structure
plastomes
ranged
147,244
bp
148,391
included
120
genes.
Among
them,
74
were
protein
coding
genes,
38
tRNA
genes
8
rRNA
while
ndh
pseudogenized
or
lost.
Four
non-coding
mutational
hotspots
(rpl20–rpl33,
psbM,
petB,
rpoB–trnCGCA,
Pi
>
0.06)
identified.
A
total
71–77
SSRs
19–46
long
repeats
(>30
bp)
recognized
plastomes,
which
mostly
located
large
single-copy
region.
Phylogenetic
analysis
indicated
was
monophylic
sister
Renanthera.
Moreover,
our
results
confirmed
can
be
divided
into
three
major
clades.
These
findings
provide
assistance
for
identification
investigation
Aerides,
as
well
contributes
future
research
on
phylogenomics
Orchidaceae.
Horticulturae,
Journal Year:
2025,
Volume and Issue:
11(2), P. 144 - 144
Published: Jan. 30, 2025
The
Coelogyne
s.l.
is
one
of
the
emblematic
genera
Asian
orchids,
with
high
horticultural
and
medicinal
values.
However,
phylogenetic
relationships
genus
inferred
from
previous
studies
based
on
a
limited
number
DNA
markers
remain
ambiguous.
In
this
study,
we
newly
sequenced
assembled
complete
plastomes
seven
species:
C.
bulleyia,
fimbriata,
flaccida,
prolifera,
tricallosa,
uncata,
an
unknown
taxa,
sp.
exhibited
typical
quadripartite
structure,
varying
in
length
between
157,476
bp
160,096
bp,
accompanied
by
GC
content
spanning
37.3%
to
37.5%.
A
total
132
genes
were
annotated
for
each
plastome,
including
86
protein-coding
genes,
eight
rRNA
38
tRNA
genes.
Among
these,
19
underwent
duplication
within
inverted
repeat
(IR)
regions,
18
presence
introns.
Additionally,
detected
54
69
simple
sequence
repeats
(SSRs)
30
49
long
repeats.
terms
codon
usage
frequency,
leucine
(Leu)
emerged
highest
while
cysteine
(Cys)
lowest
occurrence.
Furthermore,
hypervariable
regions
(atpB-rbcL,
psbK-psbI,
rps8-rpl14,
rps16-trnQUUG,
psaC-ndhE,
ndhF-rpl32,
psbB-psbT,
ycf1)
identified.
Phylogenetic
analyses
using
indicated
that
was
monophyletic.
Moreover,
results
robustly
supported
division
into
five
clades.
This
study
provides
comprehensive
analysis
structural
variation
plastome
data.
findings
offer
significant
insights
plastid
genomic
characteristics
s.l.,
contributing
deeper
understanding
its
evolutionary
history.
International Journal of Molecular Sciences,
Journal Year:
2023,
Volume and Issue:
24(19), P. 14437 - 14437
Published: Sept. 22, 2023
Epidendrum,
one
of
the
three
largest
genera
Orchidaceae,
exhibits
significant
horticultural
and
ornamental
value
serves
as
an
important
research
model
in
conservation,
ecology,
evolutionary
biology.
Given
ambiguous
identification
germplasm
complex
relationships
within
genus,
complete
plastome
this
genus
(including
five
species)
were
firstly
sequenced
assembled
to
explore
their
characterizations.
The
plastomes
exhibited
a
typical
quadripartite
structure.
lengths
ranged
from
147,902
bp
150,986
bp,
with
GC
content
37.16%
37.33%.
Gene
annotation
revealed
presence
78-82
protein-coding
genes,
38
tRNAs,
8
rRNAs.
A
total
25-38
long
repeats
130-149
SSRs
detected.
Analysis
relative
synonymous
codon
usage
(RSCU)
indicated
that
leucine
(Leu)
was
most
cysteine
(Cys)
least.
consistent
robust
phylogenetic
Epidendrum
its
closely
related
taxa
established
using
43
plastid
genomes
tribe
Epidendreae.
supported
monophyletic
group
sister
Cattleya.
Meanwhile,
four
mutational
hotspots
(trnCGCA-petN,
trnDGUC-trnYGUA,
trnSGCU-trnGUCC,
rpl32-trnLUAG)
identified
for
further
studies.
Our
analysis
demonstrates
promising
utility
inferring
Epidendrum.
International Journal of Molecular Sciences,
Journal Year:
2023,
Volume and Issue:
24(19), P. 14544 - 14544
Published: Sept. 26, 2023
Trichoglottis
exhibits
a
range
of
rich
variations
in
colors
and
shapes
flower
is
valuable
ornamental
orchid
genus.
The
genus
has
been
expanded
by
the
inclusion
Staurochilus,
but
this
sensu
lato
(s.l.)
was
recovered
as
non-monophyletic
based
on
molecular
sequences
from
one
or
few
DNA
regions.
Here,
we
present
phylogenomic
data
sets,
incorporating
complete
plastome
seven
species
(including
five
sequenced
study)
s.l.
two
formerly
treated
Staurochilus),
to
compare
structure
reconstruct
phylogenetic
relationships
plastomes
possessed
typical
quadripartite
angiosperms
ranged
149,402
bp
149,841
with
GC
content
36.6-36.7%.
These
contain
120
genes,
which
comprise
74
protein-coding
38
tRNA
8
rRNA
all
ndh
genes
were
pseudogenized
lost.
A
total
98
(T.
philippinensis)
134
ionosma)
SSRs
33
subviolacea)
46
long
repeats
detected.
consistent
robust
established
using
25
plastid
genomes
Aeridinae
subtribe.
strongly
supported
monophyletic
group,
Staurochilus
revealed
successively
basal
lineages.
In
addition,
mutational
hotspots
(trnNGUU-rpl32,
trnLUAA,
trnSGCU-trnGUCC,
rbcL-accD,
trnTGGU-psbD)
identified
ranking
PI
values.
Our
research
indicates
that
source
for
identification
evolutionary
studies
its
related
genera.
Research Square (Research Square),
Journal Year:
2023,
Volume and Issue:
unknown
Published: May 12, 2023
Abstract
Eomecon
chionantha
Hance
(
EC
)
is
a
unique
species
in
China
with
high
medicinal
value.
Ethnic
minorities
China,
such
as
the
Miao
and
Tujia
ethnic
groups,
have
long
history
of
using
blood
herbs
for
treatment,
has
been
used
this
purpose
centuries.
However,
despite
its
use,
we
no
knowledge
chloroplast
genome
Therefore,
study
reports
's
complete
information
to
better
develop
protect
plant
China.
The
genomic
indicates
that
DNA
(CPDNA)
(178,808
bp)
contains
99
protein-coding
genes,
including
8
rRNAs,
37
tRNAs.
We
discovered
54
SSRs,
most
which
are
single
nucleotide
adenine-thymidine
(A-T)
repeats.
Comparative
analysis
codons,
repeats,
sequences
found
CPDNA
highly
conserved.
According
our
phylogenetic
tree
results,
closely
related
four
species.
Through
K2-P
analysis,
identified
five
hypervariable
regions,
ycf
4-
cem
A,
3-
trn
S-GGA,
C-GCA-
pet
N,
rpl
32-
L-UAG,
psb
I-
S-UGA.
In
summary,
reported,
first
time,
genus
This
provides
more
scientific
basis
further
development
utilization
conducive
an
in-depth
understanding
diversity
from
perspective.
Malaxidinae
is
one
of
the
confusing
groups
with
classification
in
Orchidaceae.
Previous
phylogenetic
analysis
reveals
that
relationships
among
taxa
have
not
yet
been
reliably
established
using
a
few
plastome
regions
or
nuclear
ribosomal
internal
transcribed
spacer
(nrITS).
In
present
study,
complete
plastomes
Oberonia
integerrima
and
Crepidium
purpureum
were
assembled
high-throughput
sequencing.
Combined
publicly
available
data,
this
resulted
data
set
19
plastomes,
including
17
species
Malaxidinae.
The
feature
relationship
compared
analyzed.
results
showed
that:
(1)
possessed
quadripartite
structure
typical
angiosperms,
sizes
ranging
from
142,996
bp
to
158,787
encoding
125
133
genes.
ndh
genes
lost
pseudogenized
varying
degrees
six
species.
An
unusal
inversion
was
detected
Large
Single-Copy
region
(LSC)
Oberonioides
microtatantha.
(2)
A
total
8
regions,
ycf1,
matK,
rps16,
rpl32,
ccsA-ndhD,
clpP-psbB,
trn-FGAA-ndhJ,
trnSGCU-trnGUCC,
identified
as
mutational
hotspots.
(3)
Based
on
68
protein-coding
51
intergenic
respectively,
analyses
resolved
genera-level
subtribe
strong
support.
Liparis
supported
polyphyletic.
Horticulturae,
Journal Year:
2024,
Volume and Issue:
10(6), P. 660 - 660
Published: June 20, 2024
Taeniophyllum
is
a
distinct
taxon
of
epiphytic
leafless
plants
in
the
subtribe
Aeridinae
Orchidaceae.
The
differences
chloroplast
genomes
between
extremely
degraded
orchids
and
other
leafy
orchids,
as
well
their
origins
evolution,
raise
intriguing
questions.
Therefore,
we
report
genome
sequence
complanatum,
including
an
extensive
comparative
analysis
with
types
orchids.
T.
complanatum
exhibited
typical
quadripartite
structure,
its
overall
structure
gene
content
were
relatively
conserved.
entire
was
141,174
bp
length,
making
it
smallest
known
It
encoded
total
120
genes,
repetitive
comprising
74
protein-coding
38
transfer
RNA
(tRNA)
8
ribosomal
(rRNA)
genes.
A
phylogenetic
conducted
on
43
species
belonging
to
five
subfamilies
results
showed
that
monophyly,
nearly
all
segments
having
100%
bootstrap
value.
Chiloschista
clustered
together
sister
group
Phalaenopsis
occupied
highest
position
Epidendroideae.
Phylogenetic
suggested
within
Orchidaceae
evolved
independently.
This
study
may
provide
foundation
for
research
structural
diversity
thereby
enhancing
resources
available
studies