Aquaculture Reports,
Journal Year:
2023,
Volume and Issue:
34, P. 101896 - 101896
Published: Dec. 22, 2023
Red
swamp
crayfish
Procambarus
clarkii
is
becoming
an
ecologically
and
economically
important
crustacean
species
in
China.
In
present
study,
whether
the
macro-nutrients
intake
intervention
during
early
life
resulting
long-term
influences
on
nutritional
use
metabolism
were
evaluated
view
of
concept
programming
effects.
Juvenile
underwent
a
14
days
high-carbohydrate
(43%)
low-protein
(17%)
stimulus,
following
70
routine
dietary
feeding
(carbohydrate
15%,
protein
36%),
until
adulthood.
Short-
(14
days)
(84
effects
respectively
terms
growth
performances,
digestive
enzymes
activities,
body
compositions,
intestinal
microbiota
(long-term
only).
Data
showed
that
short
term,
it
enhanced
activities
amylase
lipase
but
reduced
activity
trypsase
hepatopancreas.
long
decreased
performances
(SR
WGR)
modified
diversity
obviously
(p
<
0.05).
Throughout
period
increased
crude
level.
All
results
indicated
events
caused
impacts
nutrient
thus
affect
physiology
short,
work
provided
evidences
to
support
existence
juvenile
crayfish.
Frontiers in Genetics,
Journal Year:
2022,
Volume and Issue:
13
Published: March 1, 2022
Many
economic
crustacean
species
have
sex
dimorphisms
during
their
growth.
Exploring
the
determination
system
and
developing
sex-specific
molecular
marker(s)
are
very
helpful
for
carrying
out
control
breeding,
next-generation
sequencing
has
been
used
as
an
efficient
way
to
explore
them
in
recent
years.
In
this
study,
first,
genetic
of
P.
clarkii
was
explored
XX/XY
by
analyzing
2b-RAD
data.
Furthermore,
DNA
samples
male
female
individuals
from
a
family
were
pooled
separately
whole-genome
resequencing.
Based
on
data
resequencing,
9,163
male-
female-specific
bias
sites
with
higher
feasibility
obtained
based
assumption
system,
four
selected
design
marker
primers.
One
identified
discrimination
rate
99.49%
(195/196)
when
applied
five
different
geographical
groups
196
individuals.
The
results
study
would
provide
foundation
realization
could
some
reference
investigating
other
Journal of Crustacean Biology,
Journal Year:
2023,
Volume and Issue:
43(2)
Published: June 1, 2023
Abstract
Ion
channels
gated
selectively
by
mechanical
stimulus
are
the
key
elements
of
mechanosensation.
Several
genes
have
been
associated
with
putative
mechanosensitive
ion
or
channel
complexes.
Transmembrane
(TMC)-like
protein
is
one
those
candidate
proteins
that
explored
in
mammals
and
several
invertebrates.
The
presence
possible
function
TMC
related
has
not
investigated
yet
crustaceans.
In
present
work
an
mRNA
coding
TMC-like
was
firstly
cloned
Astacus
leptodactylus
(Eschscholtz,
1823)
(Decapoda:
Astacidea:
Astacidae)
expressed
HEK293T
cells.
Three-dimensional
structural
calculations
predicted
a
channel.
Functional
studies,
however,
indicated
mechanosensitivity
transfected
cells
similar
to
control
It
concluded
crayfish
but
future
studies
necessary
define
its
function.
Repetitive
elements
are
a
major
component
of
DNA
sequences
due
to
their
ability
propagate
through
the
genome.
Characterization
Metazoan
repetitive
profiles
is
picking
up,
however,
current
pipelines
failing
identify
significant
proportion
divergent
repeats
in
non-model
organisms.
The
order
Decapoda,
for
which
repeat
content
analyses
largely
lacking,
characterized
by
extremely
variable
genome
sizes
that
suggest
an
important
presence
elements.
Here
we
developed
new
standardized
pipeline
annotate
organisms,
applied
on
20
Decapoda
and
6
other
crustacean
genomes.
With
our
tool
10%
more
than
standard
pipelines.
were
abundant
species
crustaceans,
with
incredibly
large
number
highly
repeated
satDNA
families.
Moreover,
demonstrated
high
correlation
between
assembly
size
transposable
different
dynamics
Dendrobranchiata
Reptantia.
patterns
reflect
phylogenetic
relationships
distinct
evolutionary
trajectories
within
Crustacea.
In
summary,
results
highlight
impact
evolution
value
novel
annotation
pipeline,
will
provide
baseline
future
comparative
analyses.
Aquaculture Reports,
Journal Year:
2023,
Volume and Issue:
34, P. 101896 - 101896
Published: Dec. 22, 2023
Red
swamp
crayfish
Procambarus
clarkii
is
becoming
an
ecologically
and
economically
important
crustacean
species
in
China.
In
present
study,
whether
the
macro-nutrients
intake
intervention
during
early
life
resulting
long-term
influences
on
nutritional
use
metabolism
were
evaluated
view
of
concept
programming
effects.
Juvenile
underwent
a
14
days
high-carbohydrate
(43%)
low-protein
(17%)
stimulus,
following
70
routine
dietary
feeding
(carbohydrate
15%,
protein
36%),
until
adulthood.
Short-
(14
days)
(84
effects
respectively
terms
growth
performances,
digestive
enzymes
activities,
body
compositions,
intestinal
microbiota
(long-term
only).
Data
showed
that
short
term,
it
enhanced
activities
amylase
lipase
but
reduced
activity
trypsase
hepatopancreas.
long
decreased
performances
(SR
WGR)
modified
diversity
obviously
(p
<
0.05).
Throughout
period
increased
crude
level.
All
results
indicated
events
caused
impacts
nutrient
thus
affect
physiology
short,
work
provided
evidences
to
support
existence
juvenile
crayfish.
