Biology,
Journal Year:
2022,
Volume and Issue:
11(7), P. 1026 - 1026
Published: July 7, 2022
The
lack
of
high-quality
juvenile
crabs
is
the
greatest
impediment
to
growth
mud
crab
(Scylla
paramamosain)
industry.
To
obtain
hybrid
offspring,
a
novel
(S.
serrata
♀
×
S.
paramamosain
♂)
was
successfully
produced
in
our
previous
study.
Meanwhile,
an
interesting
phenomenon
discovered,
that
some
first-generation
(F1)
offspring’s
eyestalks
were
displaced
during
crablet
stage
I.
uncover
genetic
mechanism
underlying
eyestalk
displacement
and
its
potential
implications,
both
single-molecule
real-time
(SMRT)
Illumina
RNA
sequencing
implemented.
Using
two-step
collapsing
strategy,
three
reconstructed
transcriptomes
obtained
from
purebred
with
normal
(SPA),
(NH),
(DH).
In
total,
37
significantly
differential
alternative
splicing
(DAS)
events
(17
up-regulated
20
down-regulated)
1475
expressed
transcripts
(DETs)
(492
983
detected
DH.
most
significant
DAS
DETs
annotated
as
being
endoplasmic
reticulum
chaperone
BiP
leucine-rich
repeat
protein
lrrA-like
isoform
X2.
addition,
top
ten
GO
terms
related
cuticle
or
chitin.
Overall,
for
interspecific
provided
valuable
insights
into
mechanisms
spp.)
crossbreeding.
Scientific Data,
Journal Year:
2024,
Volume and Issue:
11(1)
Published: Aug. 14, 2024
Red
swamp
crayfish,
Procambarus
clarkii,
is
the
most
cultured
freshwater
crayfish
species.
It
attracts
significant
research
attention
due
to
its
considerable
economic
importance.
However,
limited
availability
of
genome
information
has
impeded
further
genetic
studies
and
breeding
programs.
By
utilizing
Illumina,
PacBio,
Hi-C
sequencing
technologies,
we
present
a
more
comprehensive
continuous
chromosome-level
assembly
for
P.
clarkii
than
published
one.
The
final
size
4.03
Gb,
consisting
2,358
scaffolds
with
N50
42.87
Mb.
Notably,
3.68
corresponding
91.42%
genome,
was
anchored
94
chromosomes.
comprises
70.64%
repetitive
sequences,
including
5.21%
tandem
repeats
65.40%
transposable
elements.
Additionally,
total
4,456
non-coding
RNAs
28,852
protein-coding
genes
were
predicted
in
96.26%
annotated.
This
high-quality
not
only
represents
improvement
provides
insights
into
unique
evolution,
but
also
offers
valuable
developing
aquaculture
accelerating
breeding.
Abstract
The
Jonah
crab,
Cancer
borealis,
is
integral
to
marine
ecosystems
and
supports
a
rapidly
growing
commercial
fishery
in
the
northwest
Atlantic
Ocean.
This
species
also
has
long
history
as
model
for
neuroscience
that
expanded
our
understanding
of
central
pattern
generators,
neuromodulation,
synaptic
plasticity,
connectivity
neural
circuits.
Here,
we
present
highly
contiguous
reference
genome
crab
will
provide
an
essential
resource
advance
fisheries,
conservation,
biomedical
research.
Using
combination
PacBio
long-read
sequencing
Omni-C
scaffolding,
generated
final
assembly
spanning
691
Mb
covering
51
chromosome-length
scaffolds
106
additional
contigs.
Benchmarking
Universal
Single-Copy
Ortholog
(BUSCO)
analysis
indicated
high-quality
with
completeness
score
90.8%.
Repeat
annotation
identified
1,649
repeat
families
making
up
48.27%
genome.
Gene
predictions
annotated
24,830
protein
coding
genes
92.3%
BUSCO
score.
family
evolution
revealed
expansion
gene
associated
nervous
system
function,
targeted
extensive
repertoire
genes.
not
only
research
but
serve
foundation
investigate
adaptation
stress
population
structure
support
sustainable
fisheries
management
during
this
time
changing
environmental
conditions
Biology,
Journal Year:
2022,
Volume and Issue:
11(7), P. 1026 - 1026
Published: July 7, 2022
The
lack
of
high-quality
juvenile
crabs
is
the
greatest
impediment
to
growth
mud
crab
(Scylla
paramamosain)
industry.
To
obtain
hybrid
offspring,
a
novel
(S.
serrata
♀
×
S.
paramamosain
♂)
was
successfully
produced
in
our
previous
study.
Meanwhile,
an
interesting
phenomenon
discovered,
that
some
first-generation
(F1)
offspring’s
eyestalks
were
displaced
during
crablet
stage
I.
uncover
genetic
mechanism
underlying
eyestalk
displacement
and
its
potential
implications,
both
single-molecule
real-time
(SMRT)
Illumina
RNA
sequencing
implemented.
Using
two-step
collapsing
strategy,
three
reconstructed
transcriptomes
obtained
from
purebred
with
normal
(SPA),
(NH),
(DH).
In
total,
37
significantly
differential
alternative
splicing
(DAS)
events
(17
up-regulated
20
down-regulated)
1475
expressed
transcripts
(DETs)
(492
983
detected
DH.
most
significant
DAS
DETs
annotated
as
being
endoplasmic
reticulum
chaperone
BiP
leucine-rich
repeat
protein
lrrA-like
isoform
X2.
addition,
top
ten
GO
terms
related
cuticle
or
chitin.
Overall,
for
interspecific
provided
valuable
insights
into
mechanisms
spp.)
crossbreeding.