Research Square (Research Square),
Journal Year:
2021,
Volume and Issue:
unknown
Published: Feb. 16, 2021
Abstract
Background:
Chloroplast
(cp)
genome
sequence
data
could
provide
valuable
information
for
molecular
taxonomy
and
phylogenetic
reconstruction
among
plant
species
individuals.
However,
as
one
of
the
most
important
warm-season
turfgrasses
widely
used
in
USA
China,
cp
characteristics
position
centipedegrass
(
Eremochloa
ophiuroides
)
were
poorly
understood.
Results:
In
this
study,
we
determined
complete
chloroplast
sequences
E
.
using
high-throughput
Illumina
sequencing
technology.
The
circle
pseudomolecule
is
139,107
bp
length,
has
a
typical
quadripartite
structure
consisting
pair
inverted
repeat
(IR)
regions
22,230
each
separated
by
large
single
copy
(LSC)
region
82,081
small
(SSC)
12,566
bp.
nucleotide
composition
asymmetric
with
an
overall
A
+
T
content
61.60%.
It
encodes
total
131
gene
species,
composed
20
duplicated
genes
within
IR
111
unique
including
77
protein-coding
(PCGs),
30
transfer
RNA
(tRNA)
four
ribosome
(rRNA)
genes.
Analysis
repetitive
revealed
that
contains
51
tandem
repeats
29
forward,
palindromic
2
reverse
repeats,
197
simple
(SSRs)
which
mainly
adenine
(A)
thymine
(T)
bases.
Comparison
genomes
other
seven
Gramineae
showed
high
degree
collinearity
plants.
Phylogenetic
analysis
was
closely
related
to
E.
ciliaris
eriopoda
,
placed
clade
two
Mnesithea
helferi
subtribe
Rottboelliinae,
clarified
evolutionary
status
tribe
Andropogoneae
also
authenticated
current
Andropogoneae.
Conclusions:
present
study
provides
genome,
preliminarily
ascertains
Andropogonodae.
This
will
be
value
grass
taxa
identification,
resolution,
population
biodiversity,
novel
discovery
functional
genomic
studies
genus
BMC Genomics,
Journal Year:
2023,
Volume and Issue:
24(1)
Published: Jan. 18, 2023
The
genus
Zingiber
of
the
Zingiberaceae
is
distributed
in
tropical,
subtropical,
and
Far
East
Asia.
This
contains
about
100-150
species,
with
many
species
valued
as
important
agricultural,
medicinal
horticultural
resources.
However,
genomic
resources
suitable
molecular
markers
for
identification
are
currently
sparse.We
conducted
comparative
genomics
phylogenetic
analyses
on
species.
chloroplast
genome
(size
range
162,507-163,711
bp)
possess
typical
quadripartite
structures
that
consist
a
large
single
copy
(LSC,
86,986-88,200
bp),
small
(SSC,
15,498-15,891
pair
inverted
repeats
(IRs,
29,765-29,934
bp).
genomes
contain
113
unique
genes,
including
79
protein
coding
30
tRNA
4
rRNA
genes.
structures,
gene
contents,
amino
acid
frequencies,
codon
usage
patterns,
RNA
editing
sites,
simple
sequence
long
conservative
Zingiber.
analysis
divergence
indicates
following
genes
undergo
positive
selection
(ccsA,
ndhA,
ndhB,
petD,
psbA,
psbB,
psbC,
rbcL,
rpl12,
rpl20,
rpl23,
rpl33,
rpoC2,
rps7,
rps12
ycf3).
Eight
highly
variable
regions
identified
seven
intergenic
(petA-pabJ,
rbcL-accD,
rpl32-trnL-UAG,
rps16-trnQ-UUG,
trnC-GCA-psbM,
psbC-trnS-UGA
ndhF-rpl32)
one
genic
(ycf1).
revealed
sect.
was
sister
to
Cryptanthium
rather
than
Pleuranthesis.This
study
reports
14
complete
Overall,
this
provided
solid
backbone
phylogeny
polymorphisms
we
have
uncovered
sequencing
offer
rare
possibility
(for
Zingiber)
generation
DNA
markers.
These
results
provide
foundation
future
studies
seek
understand
evolutionary
dynamics
or
individual
population
variation
BMC Plant Biology,
Journal Year:
2022,
Volume and Issue:
22(1)
Published: March 7, 2022
Abstract
Background
The
Peucedanum
genus
is
the
backbone
member
of
Apiaceae,
with
many
economically
and
medically
important
plants.
Although
previous
studies
on
provide
us
a
good
research
basis,
there
are
still
unclear
phylogenetic
relationships
taxonomic
problems
in
,
robust
framework
this
has
not
been
obtained,
which
severely
hampers
improvement
revision
system
for
genus.
plastid
genomes
possessing
more
variable
characters
have
potential
reconstructing
phylogeny
Results
In
current
study,
we
newly
sequenced
assembled
seven
genomes.
Together
five
previously
published
performed
comprehensively
comparative
analyses
Twelve
plastomes
were
similar
terms
genome
structure,
codon
bias,
RNA
editing
sites,
SSRs,
but
varied
size,
gene
content
arrangement,
border
SC/IR.
Fifteen
mutation
hotspot
regions
identified
among
that
can
serve
as
candidate
DNA
barcodes
species
identification
.
Our
based
generated
high
supports
resolutions
robustly
supported
non-monophyly
Conclusion
showed
both
conservation
diversity.
data
efficient
powerful
improving
complex
summary,
our
study
provides
new
sights
into
evolution,
taxonomy,
species.
BioMed Research International,
Journal Year:
2020,
Volume and Issue:
2020, P. 1 - 9
Published: Dec. 29, 2020
Dracocephalum
tanguticum
and
moldavica
are
important
herbs
from
Lamiaceae
have
great
medicinal
value.
We
used
the
Illumina
sequencing
technology
to
sequence
complete
chloroplast
genome
of
D.
then
conducted
de
novo
assembly.
The
two
genomes
a
typical
quadripartite
structure,
with
gene’s
lengths
82,221
bp
81,450
bp,
large
single-copy
region’s
(LSC)
small
(SSC)
17,363
17,066
inverted
repeat
(IR)
51,370
51,352
respectively.
GC
content
was
37.80%
37.83%,
plants
encode
133
132
genes,
respectively,
among
which
there
88
87
protein-coding
as
well
37
tRNA
genes
8
rRNA
genes.
Among
them,
rps2
gene
is
unique
tanguticum,
not
found
in
moldavica.
Through
SSR
analysis,
we
also
6
mutation
hotspot
regions,
can
be
molecular
markers
for
taxonomic
studies.
Phylogenetic
analysis
showed
that
more
closely
related
Mentha.
Physiologia Plantarum,
Journal Year:
2021,
Volume and Issue:
172(4), P. 2129 - 2141
Published: May 3, 2021
Abstract
An
understanding
of
the
seed
dynamics
endangered
plant
species,
such
as
Magnolia
zenii
Cheng,
is
important
for
successful
conservation.
This
study
examined
morphological,
physiological
and
biochemical
changes
that
occur
in
M.
Cheng
during
development
to
determine
appropriate
harvest
stage.
The
appearance
seeds
was
influenced
by
occurring
developmental
period,
which
colour
fruits
changed
from
green
red,
while
light
brown
dark
brown.
There
a
significant
decrease
moisture
content
90
120
days
after
flowering
(DAF);
however,
there
no
change
135
165
DAF.
DAF
onwards
showed
developed
cotyledonary
embryos.
viability
exceeded
95%
onwards;
germination
percentage
0,
hypothesising
might
exhibit
dormancy
under
certain
conditions
this
experiment.
increase
fat,
soluble
sugar
starch
approaching
maturity.
were
malate
dehydrogenase
(MDH),
glucose‐6‐phosphate
(G‐6‐PDH),
6‐phosphogluconate
(6‐PGDH)
β‐amylase
activities
period.
At
135–165
DAF,
MDH
activity
remained
stable,
whereas
6‐PGDH
reached
its
maximum,
indicating
underwent
vigorous
metabolism.
findings
provide
theoretical
basis
researching
time.
BMC Genomics,
Journal Year:
2022,
Volume and Issue:
23(1)
Published: Oct. 20, 2022
Abstract
Background
The
subgenus
Gynopodium
belonging
to
genus
Magnolia
have
high
ornamental,
economic,
and
ecological
value.
Subgenus
contains
eight
species,
but
six
of
these
species
are
threatened.
No
studies
date
characterized
the
characteristics
chloroplast
genomes
(CPGs)
within
species.
In
this
study,
we
compared
structure
CPGs,
identified
mutational
hotspots
resolved
phylogenetic
relationship
.
Results
CPGs
ranged
in
size
from
160,027
bp
160,114
bp.
A
total
131
genes
were
identified,
including
86
protein-coding
genes,
ribosomal
RNA
37
transfer
genes.
We
detected
neither
major
expansions
or
contractions
inverted
repeat
region,
nor
rearrangements
insertions
300
large
sequences
(forward,
reverse,
palindrome
repeats),
847
simple
sequence
repeats,
five
highly
variable
regions
identified.
One
gene
(
ycf1
)
four
intergenic
psbA-trnH-GUG
,
petA
-
psbJ
rpl32-trnL-UAG,
ccsA-ndhD)
as
by
their
nucleotide
diversity
Pi
values
(≥
0.004),
which
useful
for
discrimination.
Maximum
likelihood
Bayesian
inference
trees
concordant
indicated
that
Magnoliaceae
consisted
two
genera
Liriodendron
Six
clustered
a
monophyletic
clade,
forming
sister
clade
with
Yulania
(BS
=
100%,
PP
1.00).
Due
non-monophyly
should
be
treated
section
Within
M.
sinica
diverged
first
(posterior
probability
1,
bootstrap
100),
followed
nitida,
kachirachirai
lotungensis
omeiensis
was
yunnanensis
0.97,
50).
Conclusion
information
provided
our
study
could
identification,
conservation
genetics
resolving
relationships
Current Issues in Molecular Biology,
Journal Year:
2024,
Volume and Issue:
46(2), P. 1635 - 1650
Published: Feb. 19, 2024
Centipedegrass
(Eremochloa
ophiuroides)
is
an
important
warm-season
grass
plant
used
as
a
turfgrass
well
pasture
in
tropical
and
subtropical
regions,
with
wide
application
land
surface
greening
soil
conservation
South
China
southern
United
States.
In
this
study,
the
complete
cp
genome
of
E.
ophiuroides
was
assembled
using
high-throughput
Illumina
sequencing
technology.
The
circle
pseudomolecule
for
139,107
bp
length,
quadripartite
structure
consisting
large
single
copyregion
82,081
small
copy
region
12,566
separated
by
pair
inverted
repeat
regions
22,230
each.
overall
A
+
T
content
whole
61.60%,
showing
asymmetric
nucleotide
composition.
encodes
total
131
gene
species,
composed
20
duplicated
genes
within
IR
111
unique
comprising
77
protein-coding
genes,
30
transfer
RNA
4
ribosome
genes.
sequence
contains
51
long
repeats
197
simple
repeats,
high
degree
collinearity
among
ophiuroide
other
Gramineae
plants
disclosed.
Phylogenetic
analysis
showed
ophiuroides,
together
two
Eremochloa
closely
related
to
Mnesithea
helferi
subtribe
Rottboelliinae.
These
findings
will
be
beneficial
classification
identification
taxa,
phylogenetic
resolution,
novel
discovery,
functional
genomic
studies
genus
Eremochloa.