Endangered Przewalski’s Horse, Equus przewalskii, Cloned from Historically Cryopreserved Cells
Animals,
Год журнала:
2025,
Номер
15(5), С. 613 - 613
Опубликована: Фев. 20, 2025
Cloning
from
historically
cryopreserved
cells
offers
a
potential
means
to
restore
lost
genetic
variation
or
increase
the
representation
of
particular
lineages
within
bottlenecked
species,
provided
such
biobanked
materials
are
archived
for
rescue
applications.
One
species
which
cloning
can
provide
management
benefits
is
Przewalski's
horse,
Equus
przewalskii.
All
~1800
living
horses,
distributed
across
ex
situ
breeding
facilities
and
in
reintroduction
sites,
descended
one
more
five
founder
established
by
12
horses
captured
wild
between
1898
1947.
Since
1970s,
San
Diego
Zoo
Wildlife
Alliance
Biodiversity
Bank's
Frozen
Zoo®
(Escondido,
CA,
USA)
has
tissues
575
individuals
spanning
many
generations.
A
pedigree
analysis
subset
deceased
represented
revealed
an
underrepresented
male
that
lived
1975
1998,
Studbook
Number
615
(also
known
as
Kuporovitch),
who
would
be
high
value
if
cloned.
Here,
we
report
two
healthy
clones
were
produced
this
cell
line
using
cross-species
somatic
nuclear
transfer
2020
2023.
Their
identification
was
verified
standard
horse-pedigree
genotyping
panel,
and,
clone,
whole
genome
sequencing
comparison
original
donor
performed.
This
first
time
multiple
surviving
perinatal
period
have
been
endangered
species.
Язык: Английский
Towards Practical Conservation Cloning: Understanding the Dichotomy Between the Histories of Commercial and Conservation Cloning
Animals,
Год журнала:
2025,
Номер
15(7), С. 989 - 989
Опубликована: Март 29, 2025
Over
40
years
ago,
scientists
imagined
ways
cloning
could
aid
conservation
of
threatened
taxa.
The
Dolly
the
sheep
from
adult
somatic
cells
in
1996
was
breakthrough
that
finally
enabled
potential
technology.
Until
2020s,
research
efforts
yielded
no
management
applications,
leading
many
to
believe
is
not
yet
an
effective
tool.
In
strong
contrast,
domestic
taxa
are
cloned
routinely
for
scientific
and
commercial
purposes.
this
review,
we
sought
understand
reasons
these
divergent
trends.
We
scoured
peer-reviewed
gray
literature
sent
direct
inquiries
analyze
a
more
comprehensive
history
field
than
analyzed
previous
reviews.
While
most
reviewers
concluded
lack
reproductive
knowledge
wildlife
species
has
hindered
advances
wider
found
resource
limitations
(e.g.,
numbers
surrogates,
sustainable
funding)
widely
held
misconceptions
about
significant
contributors
stagnation
field.
Recent
successes
programs
endangered
black-footed
ferret
(Mustela
nigripes)
Przewalski's
horse
(Equus
przewalskii),
world's
first
true
applied-conservation
efforts,
demonstrating
can
be
used
impact
present.
When
viewed
alongside
long
achievements,
emphasize
value
investing
science
resources
needed
meaningfully
integrate
into
management,
especially
with
limited
genetic
diversity
rely
on
maintenance
small
populations
generations
while
conservationists
work
restore
habitat
mitigate
threats
wild.
Язык: Английский