PeerJ,
Journal Year:
2024,
Volume and Issue:
12, P. e17887 - e17887
Published: Sept. 25, 2024
Background
The
Neotropics
harbors
the
largest
species
richness
of
planet;
however,
even
in
well-studied
groups,
there
are
potentially
hundreds
that
lack
a
formal
description,
and
likewise,
many
already
described
taxa
difficult
to
identify
using
morphology.
Specifically
small
mammals,
complex
morphological
diagnoses
have
been
facilitated
by
use
molecular
data,
particularly
from
mitochondrial
sequences,
obtain
accurate
identifications.
Obtaining
markers
implies
PCR
specific
primers,
which
largely
absent
for
non-model
organisms.
Oxford
Nanopore
Technologies
(ONT)
is
new
alternative
sequencing
entire
genome
without
need
primers.
Only
limited
number
studies
employed
exclusively
ONT
long-reads
assemble
genomes,
few
yet
evaluated
usefulness
such
reads
multiple
Methods
We
implemented
fieldwork
collect
including
rodents,
bats,
marsupials,
five
localities
northern
extreme
Cordillera
Central
Colombia.
DNA
samples
were
sequenced
MinION
device
Flongle
flow
cells.
Shotgun-sequenced
data
was
used
reconstruct
all
samples.
In
parallel,
customized
computational
pipeline,
species-level
identifications
obtained
based
on
raw
(Whole
Genome
Sequencing).
ONT-based
corroborated
traditional
characters
phylogenetic
analyses.
Results
A
total
24
individuals
18
collected,
morphologically
identified,
deposited
biological
collection
Universidad
EAFIT.
Our
different
pipelines
able
genomes
reads.
three
eight
sequences
six
species.
identification
pipeline
up
75%
as
little
5
s.
Finally,
our
analyses
automated
revealed
important
contributions
knowledge
diversity
Neotropical
mammals.
Discussion
This
study
evaluate
organisms,
reads,
benchmarking
these
protocols
multi-species
dataset.
proposed
methodology
can
be
applied
non-expert
taxonomists
has
potential
real-time,
euthanize
organisms
under
field
conditions.
Therefore,
it
stands
relevant
tool
help
increase
available
rate
at
researchers
characterize
life
specially
highly
biodiverse
places
Neotropics.
Cladistics,
Journal Year:
2023,
Volume and Issue:
40(2), P. 192 - 203
Published: Dec. 2, 2023
Abstract
Most
arthropod
species
are
undescribed
and
hidden
in
specimen‐rich
samples
that
difficult
to
sort
using
morphological
characters.
For
such
samples,
sorting
putative
with
DNA
barcodes
is
an
attractive
alternative,
but
needs
cost‐effective
techniques
suitable
for
use
many
laboratories
around
the
world.
Barcoding
portable
inexpensive
MinION
sequencer
produced
by
Oxford
Nanopore
Technologies
(ONT)
could
be
useful
presorting
because
it
requires
little
space
inexpensive.
However,
similarly
important
user‐friendly
reliable
software
analysis
of
ONT
data.
It
here
provided
form
ONTbarcoder
2.0
all
commonly
used
operating
systems
includes
a
Graphical
User
Interface
(GUI).
Compared
earlier
version,
has
three
key
improvements
related
higher
read
quality
obtained
ONT's
latest
flow
cells
(R10.4),
chemistry
(V14
kits)
basecalling
model
(super‐accuracy
model).
First,
improved
(R10.4)
allows
primers
shorter
indices
than
those
previously
needed
(9
bp
vs.
12–13
bp).
This
decreases
primer
cost
can
potentially
improve
PCR
success
rates.
Second,
now
delivers
real‐time
barcoding
complement
sequencing.
means
first
within
minutes
starting
sequencing
run;
i.e.
cell
optimized
terminating
runs
when
most
have
already
been
obtained.
The
only
input
demultiplexing
sheet
data
(raw
or
basecalled)
generated
either
Mk1B
Mk1C.
Thirdly,
we
demonstrate
availability
R10.4
low‐cost
Flongle
option
users
who
require
200–250
at
time.
Molecular Ecology Resources,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 19, 2024
The
use
of
DNA
barcoding
is
well
established
for
specimen
identification
and
large-scale
biodiversity
discovery,
but
remains
underutilized
time-sensitive
applications
such
as
rapid
species
discovery
in
field
stations,
identifying
pests,
citizen
science
projects,
authenticating
food.
main
reason
that
existing
express
workflows
are
either
too
expensive
or
can
only
be
used
very
well-equipped
laboratories
by
highly-trained
staff.
We
here
show
an
alternative
workflow
combining
extraction
with
HotSHOT,
amplicon
production
NextGenPCR
thermocyclers,
sequencing
low-cost
MinION
sequencers.
demonstrate
the
power
approach
generating
250
barcodes
285
specimens
within
6
h
including
through
BLAST.
required
following
major
equipment
easily
fits
onto
a
lab
bench:
Thermocycler,
NextGenPCR,
microplate
sealer,
Qubit,
MinION.
Based
on
our
results,
we
argue
simplified
species-level
sorting
now
faster,
more
accurate,
sufficiently
cost-effective
to
replace
traditional
morpho-species
many
projects.
Molecular Systems Biology,
Journal Year:
2023,
Volume and Issue:
19(8)
Published: June 16, 2023
The
ongoing
degradation
of
natural
systems
and
other
environmental
changes
has
put
our
society
at
a
crossroad
with
respect
to
future
relationship
planet.
While
the
concept
One
Health
describes
how
human
health
is
inextricably
linked
health,
many
these
complex
interdependencies
are
still
not
well-understood.
Here,
we
describe
advent
real-time
genomic
analyses
can
benefit
it
enable
timely,
in-depth
ecosystem
assessments.
We
introduce
nanopore
sequencing
as
only
disruptive
technology
that
currently
allows
for
already
being
used
worldwide
improve
accessibility
versatility
sequencing.
showcase
studies
on
zoonotic
disease,
food
security,
microbiome,
emerging
pathogens,
their
antimicrobial
resistances,
itself
-
from
resource
creation
wildlife
conservation
monitoring
biodiversity,
invasive
species,
trafficking.
stress
why
equitable
access
genomics
in
context
will
be
paramount
discuss
related
practical,
legal,
ethical
limitations.
Viruses,
Journal Year:
2024,
Volume and Issue:
16(5), P. 798 - 798
Published: May 16, 2024
In
recent
years,
an
increasing
number
of
viruses
have
triggered
outbreaks
that
pose
a
severe
threat
to
both
human
and
animal
life,
as
well
caused
substantial
economic
losses.
It
is
crucial
understand
the
genomic
structure
epidemiology
these
guide
effective
clinical
prevention
treatment
strategies.
Nanopore
sequencing,
third-generation
sequencing
technology,
has
been
widely
used
in
research
since
2014.
This
technology
offers
several
advantages
over
traditional
methods
next-generation
(NGS),
such
ability
generate
ultra-long
reads,
high
efficiency,
real-time
monitoring
analysis,
portability,
directly
sequence
RNA
or
DNA
molecules.
As
result,
it
exhibits
excellent
applicability
flexibility
virus
research,
including
viral
detection
surveillance,
genome
assembly,
discovery
new
variants
novel
viruses,
identification
chemical
modifications.
this
paper,
we
provide
comprehensive
review
development,
principles,
advantages,
applications
nanopore
aiming
offer
fresh
perspectives
for
future
studies
field.
Bulletin of Biological and Allied Sciences Research,
Journal Year:
2024,
Volume and Issue:
2024(1), P. 57 - 57
Published: Jan. 4, 2024
The
molecular
marker
method
has
come
a
long
way
in
the
last
30
years.
Genetic
research
advanced
from
RFLPs
to
SNPs.
Array
technology
was
also
used.
Sequencing
progress
led
creation
of
low-cost
NGS
systems
with
high
throughput.
Phenotyping
been
very
important
making
this
possible.
Markers
for
crops
like
rice,
corn,
and
potatoes
have
worked
on,
but
markers
that
aren't
used
much
haven't
studied
as
much.
Phylogenetics
ecology
are
other
areas
don't
know
about
markers.
Plant
breeding
DNA
modification
greatly
changed
since
recent
improvements
CRISPR
technology.
To
contrary,
some
MAS
(marker-assisted
selection)
methods
need
genome
beforehand,
which
makes
work
even
harder.
Researchers
plant
science
might
find
discussed
review
piece
useful
database.
They
could
use
them
alone
or
sequence-level
characters
different
fields.
Molecular Ecology,
Journal Year:
2022,
Volume and Issue:
32(23), P. 6418 - 6435
Published: Nov. 3, 2022
DNA
obtained
from
invertebrates
(iDNA)
can
be
metabarcoded
in
order
to
survey
vertebrate
communities.
However,
little
attention
has
been
paid
the
interaction
between
invertebrate
and
species.
Here,
we
tested
for
specialization
by
sampling
dung
carrion
fly
community
of
a
swamp
forest
remnant
along
disturbance
gradient
(10
sites:
80-310
m
road).
Approximately,
60%
baited
407
flies
yielded
294
identifications
based
on
two
COI
fragments
16S.
A
bipartite
network
analysis
found
no
statistically
significant
interactions
species,
but
uncommon
species
carry
signal
that
are
otherwise
difficult
detect
with
iDNA.
spatial
revealed
most
20
reported
this
study
could
detected
within
150
road
(18
spp.)
sourced
iDNA
was
unexpectedly
rich
(24
3
families).
They
carried
rare
common
inhabiting
different
layers
(ground-dwelling:
wild
boar,
Sunda
pangolin,
skinks,
rats;
arboreal:
long-tailed
macaque,
Raffles'
banded
langur;
flying:
pin-striped
tit-babbler,
olive-winged
bulbul).
All
our
results
were
new,
greatly
simplified
protocol
eliminates
extraction
obtaining
template
directly
through
dissolving
faeces
regurgitates
water.
Lastly,
show
MinION-
Illumina-based
metabarcoding
yield
similar
results.
We
conclude
urging
more
studies
use
baits
involve
experiments
capable
revealing
dispersal
capabilities
carrying