Polyploid plants take cytonuclear perturbations in stride
The Plant Cell,
Journal Year:
2024,
Volume and Issue:
36(4), P. 829 - 839
Published: Jan. 24, 2024
Hybridization
in
plants
is
often
accompanied
by
nuclear
genome
doubling
(allopolyploidy),
which
has
been
hypothesized
to
perturb
interactions
between
and
organellar
(mitochondrial
plastid)
genomes
creating
imbalances
the
relative
copy
number
of
these
producing
genetic
incompatibilities
maternally
derived
half
allopolyploid
from
paternal
progenitor.
Several
evolutionary
responses
have
predicted
ameliorate
effects,
including
selection
for
changes
protein
sequences
that
restore
cytonuclear
interactions;
biased
gene
retention/expression/conversion
favoring
maternal
copies;
fine-tuning
numbers
expression
levels.
Numerous
recent
studies,
however,
found
are
inconsistent
rarely
scale
genome-wide
generalities.
The
apparent
robustness
plant
allopolyploidy
may
reflect
features
general
allopolyploids
such
as
lack
F2
hybrid
breakdown
under
disomic
inheritance,
others
more
plant-specific,
slow
sequence
divergence
preexisting
regulatory
cell
size
endopolyploidy
during
development.
Thus,
only
act
main
barrier
establishment
lineages,
perhaps
helping
explain
why
so
pervasive
evolution.
Language: Английский
Gene Function is a Driver of Activin Signaling Pathway Evolution Following Whole-Genome Duplication in Rainbow Trout (Oncorhynchus mykiss)
Genome Biology and Evolution,
Journal Year:
2024,
Volume and Issue:
16(5)
Published: May 1, 2024
The
genomes
of
plant
and
animal
species
are
influenced
by
ancestral
whole-genome
duplication
(WGD)
events,
which
have
profound
impacts
on
the
regulation
function
gene
networks.
To
gain
insight
into
consequences
WGD
we
characterized
sequence
conservation
expression
patterns
ohnologs
in
highly
duplicated
activin
receptor
signaling
pathway
rainbow
trout
(RBT).
RBT
is
defined
tissue-specific
inhibitors
ligands
broad
receptors
Co-Smad
molecules.
Signaling
exhibited
shared
expression,
while
Smad
molecules
primarily
express
a
single
dominant
ohnolog.
Our
findings
suggest
that
influences
ohnolog
evolution
following
RBT.
Language: Английский
The Genomics Revolution in Nonmodel Species: Predictions vs. Reality for Salmonids
Molecular Ecology,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 18, 2025
ABSTRACT
The
increasing
feasibility
of
whole‐genome
sequencing
has
been
highly
anticipated,
promising
to
transform
our
understanding
the
biology
nonmodel
species.
Notably,
dramatic
cost
reductions
beginning
around
2007
with
advent
high‐throughput
inspired
publications
heralding
‘genomics
revolution’,
predictions
about
its
future
impacts.
Although
such
served
as
useful
guideposts,
value
is
added
when
statements
are
evaluated
benefit
hindsight.
Here,
we
review
10
key
made
early
in
genomics
revolution,
highlighting
those
realised
while
identifying
challenges
limiting
others.
We
focus
on
concerning
applied
aspects
and
examples
involving
salmonid
species
which,
due
their
socioeconomic
ecological
significance,
have
frontrunners
applications
Predicted
outcomes
included
enhanced
analytical
power,
deeper
insights
into
genetic
basis
phenotype
fitness
variation,
disease
management
breeding
program
advancements.
many
materialised,
several
expectations
remain
unmet
technological,
knowledge
barriers.
Additionally,
largely
unforeseen
advancements,
including
identification
applicability
large‐effect
loci,
close‐kin
mark–recapture,
environmental
DNA
gene
editing
under‐anticipated
value.
Finally,
emerging
innovations
artificial
intelligence
bioinformatics
offer
new
directions.
This
retrospective
evaluation
impacts
genomic
revolution
offers
for
Language: Английский
A homology guide for Pacific salmon genus Oncorhynchus resolves patterns of ohnolog retention, resolution and local adaptation following the salmonid‐specific whole‐genome duplication event
Ecology and Evolution,
Journal Year:
2023,
Volume and Issue:
13(4)
Published: April 1, 2023
Abstract
Salmonid
fishes
have
emerged
as
a
tractable
model
to
study
whole‐genome
duplications
(WGDs)
this
group
has
undergone
four
rounds
of
WGDs.
While
most
the
salmonid
genome
returned
diploid
state,
significant
proportion
genes
are
maintained
duplicates
and
referred
ohnologs.
The
fact
that
much
modern
gene
repertoire
is
comprised
ohnologs,
while
other
their
singleton
state
creates
complications
for
genetic
studies
by
obscuring
homology
relationships.
difficulty
particularly
prominent
in
Pacific
salmonids
belonging
genus
Oncorhynchus
who
focus
intense
genetics‐based
conservation
management
efforts
owing
important
ecological
cultural
roles
these
fish
play.
To
address
gap,
we
generated
guide
six
species
with
available
genomes
used
describe
patterns
ohnolog
retention
resolution.
Overall,
find
ohnologs
comprise
approximately
half
each
repertoires,
which
functionally
enriched
involved
DNA
binding,
less
numerous
heavily
dosage‐sensitive
processes
such
mitochondrial
metabolism.
Additionally,
reanalyzing
published
expression
data
from
locally
adapted
strains
O.
mykiss
,
show
exhibit
adaptive
profiles;
however,
not
more
likely
display
signatures
than
either
paralogs
or
singletons.
Finally,
demonstrate
utility
our
investigating
evolutionary
relationship
among
highlighted
playing
role
life‐history
traits
editing
targets.
Language: Английский
Activin Signaling Pathway Specialization During Embryonic and Skeletal Muscle Development in Rainbow Trout (Oncorhynchus mykiss)
Marine Biotechnology,
Journal Year:
2024,
Volume and Issue:
26(4), P. 766 - 775
Published: July 25, 2024
Language: Английский
Activin signaling pathway specialization during embryonic and skeletal muscle development in rainbow trout (Oncorhynchus mykiss)
Research Square (Research Square),
Journal Year:
2024,
Volume and Issue:
unknown
Published: March 5, 2024
Abstract
Activin
signaling
is
essential
for
proper
embryonic,
skeletal
muscle,
and
reproductive
development.
Duplication
of
the
pathway
in
teleost
fish
has
enabled
diversification
gene
function
across
but
how
duplication
influences
activin
non-mammalian
species
poorly
understood.
Full
characterization
receptor
expression
was
performed
embryonic
development
during
early
muscle
growth
rainbow
trout
(RBT,
Oncorhynhus
mykiss).
Rainbow
are
a
model
salmonid
that
have
undergone
two
additional
rounds
whole
genome
duplication.
There
limited
Ab
RBT
embryos
despite
these
genes
exhibiting
significantly
elevated
post-hatch
muscle.
Divergent
patterns
were
also
observed
type
IIB
ohnologs.
CRISPR
targeting
Aa2
Ab2
did
not
identify
any
developmental
or
phenotypes
edited
RBT,
however,
high
percentage
in-frame
alleles
identified
targeted
fish.
The
research
identifies
mechanisms
specialization
among
duplicated
ohnologs
periods
larval
juvenile
knowledge
gained
provides
critical
insights
into
viable
gene-targeting
approaches
engineering
to
improve
physiological
performance
species.
Language: Английский
Long-Read De Novo Genome Assembly of Gulf toadfish Opsanus beta.
Research Square (Research Square),
Journal Year:
2024,
Volume and Issue:
unknown
Published: April 5, 2024
Abstract
The
Gulf
toadfish,
Opsanus
beta
,
within
the
family
Batrachoididae,
plays
an
important
role
ecologically
and
as
a
comparative
research
model.
Only
4
genome
assemblies
are
available
for
Batrachoids,
with
three
being
highly
fragmentary
not
up
to
current
assembly
standards.
Here
we
present
new,
de
novo
transcriptome
toadfish
using
PacBio
long
read
technology.
final
is
among
largest
teleost
genomes
at
2.1
gigabases.
This
new
improves
significantly
upon
currently
reference
scaffold
count
of
62,
which
23
chromosome
scale,
N50
98,402,768,
BUSCO
completeness
score
97.3%.
Annotation
ab
intio
transcriptome-based
methods
generated
41,076
gene
models.
Modeling
orthogroup
change
indicated
expansion
many
immune
associated
orthogroups
contraction
olfactory
receptor
orthogroups.
repetitive,
~
70%
composed
simple
repeats
transposable
elements.
Satellite
DNA
analysis
identified
potential
telomeric
centromeric
regions.
improved
represents
valuable
resource
future
this
model
organism
genomics
more
broadly.
Language: Английский
Long-read de novo genome assembly of Gulf toadfish (Opsanus beta)
BMC Genomics,
Journal Year:
2024,
Volume and Issue:
25(1)
Published: Sept. 18, 2024
The
family
Batrachoididae
are
a
group
of
ecologically
important
teleost
fishes
with
unique
life
histories,
behavior,
and
physiology
that
has
made
them
popular
model
organisms.
remain
understudied
in
the
realm
genomics,
only
four
reference
genome
assemblies
available
for
family,
three
being
highly
fragmented
not
up
to
current
assembly
standards.
Among
these
is
Gulf
toadfish,
Opsanus
beta,
organism
serotonin
which
recently
been
bred
captivity.
Language: Английский
Plasma proteomic profiling of bacterial cold water disease-resistant and -susceptible rainbow trout lines and biomarker discovery
Gregory D. Wiens,
No information about this author
David Marancik,
No information about this author
Christopher C. Chadwick
No information about this author
et al.
Frontiers in Immunology,
Journal Year:
2023,
Volume and Issue:
14
Published: Oct. 20, 2023
Genetic
variation
for
disease
resistance
is
present
in
salmonid
fish;
however,
the
molecular
basis
poorly
understood,
and
biomarkers
of
susceptibility/resistance
are
unavailable.
Previously,
we
selected
a
line
rainbow
trout
high
survival
following
standardized
challenge
with
Flavobacterium
psychrophilum
(Fp),
causative
agent
bacterial
cold
water
disease.
The
resistant
(ARS-Fp-R)
exhibits
over
60
percentage
points
higher
compared
to
reference
susceptible
(ARS-Fp-S).
To
gain
insight
into
differential
host
response
between
genetic
lines,
plasma
proteomes
from
day
6
after
intramuscular
challenge.
Pooled
unhandled,
PBS-injected,
Fp-injected
groups
were
simultaneously
analyzed
using
TMT
6-plex
label,
relative
abundance
513
proteins
was
determined.
Data
available
via
ProteomeXchange,
identifier
PXD041308,
protein
values
mRNA
measured
prior,
whole-body
RNA-seq
dataset.
Our
results
identified
subset
differentially
abundant
intracellular
identified,
including
troponin
myosin,
which
not
transcriptionally
regulated,
suggesting
that
these
released
pathogen-induced
tissue
damage.
A
separate
high-abundance,
secreted
regulated
infected
fish.
highest
expressed
C1q
family
member
(designated
complement
C1q-like
3;
C1q-LP3)
upregulated
20-fold
while
only
modestly
upregulated,
1.8-fold,
line.
Validation
performed
immunoassays
C1q-LP3,
skeletal
muscle
C,
cathelcidin
2,
haptoglobin,
leptin,
growth
differentiation
factor
15
exhibited
elevated
concentration
plasma.
Complement
H-like
1
both
control
challenged
fish
thus
baseline
differentiator
lines.
C1q-LP3
STNC
Atlantic
salmon
experimental
Fp.
In
summary,
findings
further
understanding
Fp
identifies
may
have
use
evaluation
on-farm
health
monitoring.
Language: Английский