Female cichlids mate with novel androgen receptor mutant males that lack coloration
Megan Howard,
No information about this author
Maxximus G. Ramsaroop,
No information about this author
Andrew P. Hoadley
No information about this author
et al.
Hormones and Behavior,
Journal Year:
2024,
Volume and Issue:
163, P. 105564 - 105564
Published: May 20, 2024
Language: Английский
Hormones and sexual behavior of teleost fishes
Elsevier eBooks,
Journal Year:
2024,
Volume and Issue:
unknown, P. 159 - 193
Published: Jan. 1, 2024
Language: Английский
Impacts of repeated social defeat on behavior and the brain in a cichlid fish
Christy R. Wayne,
No information about this author
Ava M. Karam,
No information about this author
Alora L. McInnis
No information about this author
et al.
Journal of Experimental Biology,
Journal Year:
2023,
Volume and Issue:
226(22)
Published: Nov. 1, 2023
Social
defeat
is
a
powerful
experience
leading
to
drastic
changes
in
physiology
and
behavior,
many
of
which
are
negative.
For
example,
repeated
social
vertebrates
results
reduced
reproductive
success,
sickness
behavioral
abnormalities
that
threaten
individual
survival
species
persistence.
However,
little
known
about
what
neural
mechanisms
involved
determining
whether
an
resilient
or
susceptible
stress.
It
also
remains
unknown
exclusive
use
reactive
behaviors
after
maintained
over
time
impacts
future
during
subsequent
contests.
We
used
resident-intruder
experiment
the
African
cichlid
fish
Astatotilapia
burtoni
investigate
behavior
correlates
these
two
opposing
groups.
Behavior
was
quantified
by
watching
trials
distinguish
individuals.
Both
started
with
searching
freezing
behaviors,
decreasing
increasing
defeat.
After
4
day
break
period,
both
encounter
new
resident,
while
almost
exclusively
behaviors.
By
quantifying
activation
using
pS6
socially
relevant
brain
regions,
we
identified
differential
patterns
associated
found
nuclei
co-varied
may
represent
functional
networks.
These
data
provide
first
evidence
specific
conserved
networks
underlying
stress
resilience
susceptibility
fishes.
Language: Английский
A transcriptomics-based analysis of mechanisms involved in the sex-dependent effects of diazepam on zebrafish
Aquatic Toxicology,
Journal Year:
2024,
Volume and Issue:
275, P. 107063 - 107063
Published: Aug. 24, 2024
Language: Английский
Comparative conflict resolution: cooperative cichlids outperform less social species
Animal Behaviour,
Journal Year:
2023,
Volume and Issue:
208, P. 91 - 109
Published: Dec. 31, 2023
Evolution
towards
complex
forms
of
sociality
is
dependent
on
overcoming
conflicts
interest
between
prospective
social
partners.
Competition
for
limited
resources
a
key
aspect
such
conflicts.
Behaviour
that
results
in
conflict
resolution
without
termination
the
relationship
thus
predicted
to
be
more
prevalent
species.
We
here
tested
this
hypothesis
by
staging
contests
conspecifics
over
crucial
resource,
using
three
lamprologine
cichlid
species
differ
their
sociality.
The
cooperatively
breeding
(Neolamprologus
pulcher)
indeed
demonstrated
improved
resolution,
showing
egalitarian
sharing
resource
and
establishing
mutually
tolerant
relationships
often
compared
pair-bonded
(Variabilichormis
moorii)
mostly
solitary
(Lepidiolamprologus
elongatus).
suggest
result
behavioural
differences
these
cichlids:
N.
pulcher
already
showed
de-escalating
behaviour
during
earliest
stages
increased
rates
behaviours
response
heightened
levels
aggression.
Our
provide
comparative
support
notion
socially
competent
behaviour,
resolving
while
maintaining
relations,
evolutionary
transitions
societies.
Language: Английский
Female cichlids attack and avoid—but will still mate with—androgen receptor mutant males that lack male-typical body coloration
Megan Howard,
No information about this author
Maxximus G. Ramsaroop,
No information about this author
Andrew P. Hoadley
No information about this author
et al.
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2023,
Volume and Issue:
unknown
Published: Nov. 4, 2023
Abstract
A
key
challenge
in
animal
behavior
is
disentangling
the
social
stimuli
that
drive
conspecific
behaviors.
For
behaviors
like
birdsong,
insights
can
be
made
through
experimental
isolation
of
relevant
cues
affect
behavior.
However,
for
some
species
teleost
fish,
putative
sexual
signaling
are
inextricably
linked
to
others,
making
it
difficult
parse
precise
roles
distinct
signals
play
driving
In
African
cichlid
Astatotilapia
burtoni
,
males
dominant
or
subordinate,
wherein
bright
coloration
and
territorial
courtship
correlate
positively
with
rank.
Here,
we
leveraged
androgen
receptor
(AR)
mutant
male
A.
lack
dominance-typical
but
not
isolate
role
female
mating
this
species.
We
found
independent
behavioral
assays
females
behave
aggressively
towards
AR
WT
still
mated
both
types
males.
Females
showed
enhanced
activation
esr2b+
cells
hypothalamus
when
housed
either
scaled
spawning
activities.
Therefore,
there
a
simple
relationship
between
suggesting
sensory
mechanisms
converge
on
hypothalamic
coordinate
output.
Language: Английский
Neural Mechanisms of Resiliency and Susceptibility After Repeated Social Defeat
Published: June 26, 2023
Social
defeat
is
a
powerful
experience
leading
to
drastic
changes
in
physiology
and
behavior,
many
of
which
are
negative.
For
example,
repeated
social
vertebrates
results
reduced
reproductive
success,
sickness,
behavioral
abnormalities
that
threaten
individual
survival
species
persistence.
However,
little
known
about
what
neural
mechanisms
involved
determining
whether
an
resilient
or
susceptible
stress.
I
used
resident-intruder
experiment
the
African
cichlid
fish,
Astatotilapia
burtoni,
create
investigate
behavior
correlates
these
two
opposing
groups.
Resilient
fish
both
searching
freezing
behaviors
during
encounter
with
new
resident
after
previously
experiencing
defeat,
while
predominantly
behaviors.
By
quantifying
activation
using
phosphor-
S6
ribosomal
protein
(pS6)
socially
relevant
brain
regions,
identified
differential
patterns
associated
found
nuclei
co-varied
may
represent
functional
networks.
also
have
preliminary
transcriptome
data
important
candidate
genes
such
as
kcnc4,
foxa1,
zfpm1
were
upregulated
trhra,
matn3b,
avp
downregulated
hippocampus
hypothalamus
fish.
These
provide
first
evidence
specific
conserved
networks
underlying
stress
resilience
susceptibility
fishes
well
transcriptomes
fishes.
The
unique
language
comics
has
potential
portray
abstract
scientific
concepts
more
easily
than
just
words.
Here
report
from
assessment
how
science
comic
can
affect
student
learning
attitudes
towards
engaging
science,
compared
traditional
written
texts,
journal
article
popular
summary.
pre-
post-
reading
questionnaire
measure
gain
viii
engagement.
Students
who
read
highest
mean
gain,
statistically
equivalent
publication,
see
most
positive
attitude
engagement
suggesting
could
be
highly
effective
form
communication
outreach
among
public.
Language: Английский
Advancements in Research on Cichlid: Reproductive Biology, Social Structure, and Communication
Boyang Shu,
No information about this author
Jin Hou
No information about this author
Scientific and Social Research,
Journal Year:
2024,
Volume and Issue:
6(7), P. 30 - 42
Published: July 26, 2024
The
social
behavior
of
cichlid
fish
emerged
as
a
captivating
subject
within
the
realm
ichthyological
research.
sociality
these
aquatic
organisms
often
encompasses
wealth
intricate
elements.
Within
this
complexity,
reproductive
biology
cichlids
was
observed
to
mirror
characteristics
pivotal
for
progeny
propagation
and
population
development.
Their
structures
were
characterized
by
stringent
hierarchies
occupational
specialization
among
individuals.
Communication
mechanisms
found
be
instrumental
in
ensuring
timely
exchange
information
across
members
species.
Furthermore,
behaviors
served
vital
conduits,
maintaining
cohesion
aforementioned
elements
securing
seamless
operation
organic
system.
Given
aspects,
study
chose
topics
entry
points
inquiry,
synthesizing
recent
scholarly
work
on
retrace
trajectory
research
field.
This
retrospective
analysis
conducted
distill
clear
future
directions
based
examined
data.
undertaken
provided
scientific
reference
poised
enhance
further
inquiry
into
enigmatic
sociality,
laying
robust
foundation
both
advancing
fishes
fostering
their
conservation.
Language: Английский
The Role of Visual and Chemosensory Signals in Male–Male Aggression of the Cichlid Astatotilapia burtoni
Aggressive Behavior,
Journal Year:
2024,
Volume and Issue:
51(1)
Published: Dec. 19, 2024
Sensory
processing
of
communication
stimuli
is
essential
for
the
survival
organisms
across
all
evolutionary
branches.
Multimodal
signaling,
use
multiple
sensory
systems
crucial
in
this
process,
but
little
known
about
relative
importance
different
senses
used
during
aggression.
We
African
cichlid
fish,
Astatotilapia
burtoni,
to
test
how
visual
and
chemosensory
signals
male-male
interactions
influence
behavior.
Males
species
exist
a
dominance
hierarchy,
where
brightly
colored
dominant
individuals
aggressively
defend
territories
reproductive
activities.
Focal
males
were
presented
with
from
other
either
alone
(unimodal)
or
together
(bimodal).
found
that
vision
necessary
engage
aggressive
behaviors
such
as
frontal
displays,
lateral
border
fights.
While
chemical
did
not
evoke
behaviors,
we
find
slight
reductions
some
when
bimodal
are
provided.
This
study
first
examine
visual-chemosensory
signaling
impacts
behavior
A.
burtoni
provides
insight
on
these
modalities
mediate
territorial
interactions.
Language: Английский