Comparative analysis of chloroplast genomes on Meliaceae species: insights into the evolution and species identification
Frontiers in Plant Science,
Год журнала:
2025,
Номер
16
Опубликована: Март 11, 2025
Introduction
Meliaceae,
a
significant
group
in
Sapindales,
possesses
material
and
medicinal
value
due
to
its
applications
timber
bioactive
compounds.
However,
the
high
morphological
diversity
of
Meliaceae
species
lack
comparative
studies
chloroplast
(cp)
genomes
have
led
great
challenges
classification
identification
species.
Methods
In
this
study,
we
sequenced
complete
cp
three
Toona
(
fargesii
,
ciliata
sinensis
),
conducted
analyses
these
along
with
29
previously
published
Meliaceae.
Additionally,
performed
phylogenetic
estimated
divergence
times
Results
The
32
ranged
from
158,558
bp
160,978
length.
Specifically,
varied
159,242
159,617
These
contained
total
135
unique
genes,
comprising
90
protein-coding,
8
rRNA,
37
tRNA
genes.
Divergence
time
estimation
revealed
that
family
diverged
into
two
subfamilies
(Cedreloideae
Melioideae)
approximately
72.92
Ma
(95%
HPD:
60.62-87.01
Ma)
Late
Cretaceous.
diversification
Cedreloideae
(47.86
Ma,
95%
47.42-48.22
occurred
later
than
Melioideae
(66.60
55.41-79.73
Ma).
Furthermore,
genomic
analysis
identified
52
116
simple
sequence
repeats
(SSRs)
twelve
highly
variable
regions
(HVRs)
found
among
Discussion
indicates
most
relatively
recent
origin,
rapid
occurring
during
Oligocene
or
Early
Miocene
epochs.
Comparative
exhibits
relative
conservation
terms
genome
size,
inverted-repeat
(IR)
boundary,
structure,
HVRs
codon
patterns.
Although
differences
exist
between
subfamilies,
overall
similarity
remains
notably
high.
ycf
1,
trn
K-
rps
16,
ndh
F-
rpl
exhibited
highest
nucleotide
polymorphism
within
while
22
gene
displayed
genetic
both
subfamilies.
As
candidate
molecular
markers,
may
effectively
distinguish
findings
not
only
provide
insights
evolution
but
also
establish
scientific
foundation
for
future
systematics
Язык: Английский
Comprehensive analysis of the complete chloroplast genome of the cultivated soapberry and phylogenetic relationships of Sapindaceae
Industrial Crops and Products,
Год журнала:
2025,
Номер
228, С. 120952 - 120952
Опубликована: Апрель 2, 2025
Язык: Английский
Comparative chloroplast genome analyses provide new insights into molecular markers for distinguishing Arnebiae Radix and its substitutes (tribe Lithospermeae, Boraginaceae)
Phytomedicine,
Год журнала:
2024,
Номер
136, С. 156338 - 156338
Опубликована: Дек. 20, 2024
Язык: Английский
Exploring the phylogenetic framework and trait evolution of Impatiens through chloroplast genome analysis
BMC Plant Biology,
Год журнала:
2024,
Номер
24(1)
Опубликована: Дек. 20, 2024
The
genus
Impatiens,
which
includes
both
annual
and
perennial
herbs,
holds
considerable
ornamental,
economic,
medicinal
value.
However,
it
posed
significant
challenges
for
taxonomic
systematic
reconstruction.
This
was
largely
attributed
to
its
high
intraspecific
diversity
low
interspecific
variation
in
morphological
characteristics.
In
this
study,
we
sequenced
samples
from
12
Impatiens
species
native
China
assessed
their
phylogenetic
resolution
using
the
complete
chloroplast
genome,
conjunction
with
published
of
Impatiens.
addition,
a
comparative
analysis
genomes
were
conducted
explore
evolution
genome
exhibited
similarity
previously
terms
size,
gene
content,
sequence.
typical
four-part
structure,
lengths
ranging
146,987
bp(I.
morsei)-
152,872
jinpingensis).
Our
results
identified
10
mutant
hotspot
regions
(rps16,
rps16-trnG,
trnS-trnR,
rpoB-trnC)
that
could
serve
as
effective
molecular
markers
analyses
identification
within
Phylogenetic
supported
classification
monophyletic
taxon.
affinities
subgenus
Clavicarpa
being
first
taxon
diverge.
tree,the
divided
into
eight
distinct
clades.
ancestral
trait
reconstruction
suggested
traits
included
life
cycle,
four
sepals
three
pollen
grooves.
morphology
regarding
fruit
shape,
flower
colour,
spacing
length
remained
ambiguous.
study
family-level
treatment
demonstrated
utility
whole
sequences
resolution.
Comparative
facilitated
development
markers.The
showed
ancestor
type
habit
perennial,
number
4,
aperture
3
colpus.
capsule
spur
underwent
complex
evolutionary
process.
provided
data
support
further
studies
some
important
new
insights
Язык: Английский