Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Jan. 30, 2024
Sex
chromosome
replacement
is
frequent
in
many
vertebrate
clades,
including
fish,
frogs,
and
lizards.
In
order
to
understand
the
mechanisms
responsible
for
sex
turnover
early
stages
of
divergence,
it
necessary
study
lineages
with
recently
evolved
chromosomes.
Here
we
examine
evolution
a
group
African
cichlid
fishes
(tribe
Tropheini)
which
began
diverge
from
one
another
less
than
4
MYA.
We
have
evidence
previously
unknown
system,
preliminary
indications
several
additional
systems
not
reported
this
group.
find
high
frequency
estimate
minimum
14
turnovers
tribe.
date
origin
most
common
determining
system
tribe
(XY-LG5/19)
near
base
two
major
sub-clades
tribe,
about
3.4
MY
ago.
Finally,
observe
variation
size
sex-determining
region
that
suggests
independent
evolutionary
strata
species
shared
sex-determination
system.
Our
results
illuminate
rapid
rate
Tropheini
set
stage
further
studies
dynamics
Cold Spring Harbor Perspectives in Biology,
Journal Year:
2024,
Volume and Issue:
16(12), P. a041445 - a041445
Published: March 4, 2024
Joshua
V.
Peñalba1,
Anna
Runemark2,
Joana
I.
Meier3,4,
Pooja
Singh5,6,
Guinevere
O.U.
Wogan7,
Rosa
Sánchez-Guillén8,
James
Mallet9,
Sina
J.
Rometsch10,11,
Mitra
Menon12,
Ole
Seehausen5,6,
Jonna
Kulmuni13,14,16
and
Ricardo
Pereira15,16
1Museum
für
Naturkunde,
Leibniz
Institute
for
Evolution
Biodiversity
Science,
Center
Integrative
Discovery,
10115
Berlin,
Germany
2Department
of
Biology,
Lund
University,
22632
Lund,
Sweden
3Tree
Life,
Wellcome
Sanger
Institute,
Hinxton,
Cambridgeshire
CB10
1SA,
United
Kingdom
4Department
Zoology,
University
Cambridge,
CB2
3EJ,
5Department
Aquatic
Ecology,
Ecology
Evolution,
Bern,
3012
Switzerland
6Center
&
Biogeochemistry,
Swiss
Federal
Science
Technology
(EAWAG),
CH-8600
Kastanienbaum,
7Department
Oklahoma
State
Stillwater,
74078,
USA
8Red
de
Biología
Evolutiva,
INECOL,
Xalapa,
Veracruz,
CP
91073,
Mexico
9Organismal
Evolutionary
Harvard
Massachusetts
02138,
10Department
Yale
New
Haven,
Connecticut
06511,
11Yale
Biospheric
Studies,
12Department
California
Davis,
95616,
13Department
Population
Ecosystem
Dynamics,
Amsterdam,
1098
XH
The
Netherlands
14Organismal
Biology
Research
Programme,
Helsinki,
Biocenter
3,
Finland
15Department
Museum
Natural
History
Stuttgart,
Stuttgart
70191,
Correspondence:
ricardojn.pereira{at}gmail.com
↵16
These
authors
contributed
equally
to
this
work.
Philosophical Transactions of the Royal Society B Biological Sciences,
Journal Year:
2021,
Volume and Issue:
376(1833), P. 20200103 - 20200103
Published: July 25, 2021
We
review
knowledge
about
the
roles
of
sex
chromosomes
in
vertebrate
hybridization
and
speciation,
exploring
a
gradient
divergences
with
increasing
reproductive
isolation
(speciation
continuum).
Under
early
divergence,
well-differentiated
meiotic
hybrids
may
cause
Haldane-effects
introgress
less
easily
than
autosomes.
Undifferentiated
are
more
susceptible
to
introgression
form
multiple
(or
new)
chromosome
systems
hardly
predictable
dominance
hierarchies.
increased
most
vertebrates
reach
complete
intrinsic
isolation.
Slightly
earlier,
some
(linked
‘the
extended
speciation
continuum')
exhibit
aberrant
gametogenesis,
leading
towards
female
clonality.
This
facilitates
evolution
various
allodiploid
allopolyploid
clonal
(‘asexual’)
hybrid
vertebrates,
where
‘asexuality'
might
be
A
comprehensive
list
‘asexual'
shows
that
they
all
evolved
from
parents
were
greater
at
intraspecific
level
(K2P-distances
5–22%
based
on
mtDNA).
These
taxa
inherited
genetic
determination
by
mostly
undifferentiated
chromosomes.
Among
few
known
sex-determining
‘asexuals',
heterogamety
(ZW)
occurred
twice
as
often
male
(XY).
hypothesize
pre-/meiotic
aberrations
all-female
ZW-hybrids
present
promoting
their
evolution.
Understanding
preconditions
produce
or
allopolyploids
appears
crucial
for
insights
into
sex,
polyploidy.
article
is
part
theme
issue
‘Challenging
paradigm
evolution:
empirical
theoretical
focus
(Part
II)’.
Evolution,
Journal Year:
2023,
Volume and Issue:
77(4), P. 1131 - 1144
Published: Feb. 13, 2023
Abstract
Introgressed
DNA
is
often
deleterious
at
many
loci
in
the
recipient
species’
genome,
and
therefore
purged
by
selection.
Here,
we
use
mathematical
modeling
whole-genome
simulations
to
study
influence
of
recombination
on
this
process.
We
find
that
aggregate
controls
genome-wide
rate
purging
early
generations
after
admixture,
when
most
rapid.
Aggregate
influenced
number
chromosomes
heterogeneity
their
size,
crossovers
locations
along
chromosomes.
A
comparative
prediction
species
with
fewer
should
purge
introgressed
ancestry
more
profoundly,
exhibit
weaker
genomic
signals
historical
introgression.
Turning
within-genome
patterns,
show
that,
autosomal
both
sexes,
expected
sex
than
autosomes,
all
else
equal.
The
opposite
holds
for
without
heterogametic
sex.
Finally,
positive
correlations
between
have
recently
been
observed
within
genomes
several
species.
these
are
likely
driven
not
recombination’s
effect
unlinking
neutral
from
alleles,
but
alleles
themselves.
Cold Spring Harbor Perspectives in Biology,
Journal Year:
2023,
Volume and Issue:
15(11), P. a041447 - a041447
Published: Aug. 21, 2023
Kay
Lucek1,
Mabel
D.
Giménez2,3,
Mathieu
Joron4,
Marina
Rafajlović5,6,
Jeremy
B.
Searle7,
Nora
Walden8,
Anja
Marie
Westram9,10
and
Rui
Faria11,12
1Biodiversity
Genomics
Laboratory,
Institute
of
Biology,
University
Neuchâtel,
2000
Switzerland
2Consejo
Nacional
de
Investigaciones
Científicas
y
Técnicas
(CONICET),
Instituto
Genética
Humana
Misiones
(IGeHM),
Parque
la
Salud
Provincia
"Dr.
Ramón
Madariaga,"
N3300KAZ
Posadas,
Misiones,
Argentina
3Facultad
Ciencias
Exactas
Químicas
Naturales,
Universidad
N3300LQH
4Centre
d'Ecologie
Fonctionnelle
et
Evolutive,
Université
Montpellier,
CNRS,
EPHE,
IRD,
34293
France
5Department
Marine
Sciences,
Gothenburg,
405
30
Sweden
6Centre
for
Evolutionary
7Department
Ecology
Cornell
University,
Ithaca,
New
York
14853,
USA
8Centre
Organismal
Studies,
Heidelberg,
69117
Germany
9Institute
Science
Technology
Austria
(ISTA),
3400
Klosterneuburg,
10Faculty
Biosciences
Aquaculture,
Nord
8026
Bodø,
Norway
11CIBIO,
Centro
Investigação
em
Biodiversidade
e
Recursos
Genéticos,
InBIO
Laboratório
Associado,
CIBIO,
Campus
Vairão,
Universidade
do
Porto,
4485-661
Portugal
12BIOPOLIS
Program
in
Genomics,
Biodiversity
Land
Planning,
Correspondence:
kay.lucek{at}unine.ch;
ruifaria{at}cibio.up.pt
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 16, 2024
SUMMARY
Sex
chromosomes
fall
into
three
classes:
XX/XY,
ZW/ZZ
and
U/V
systems.
The
rise,
evolution
demise
of
systems
have
remained
enigmatic
to
date.
Here,
we
analyze
genomes
spanning
the
entire
brown
algal
phylogeny
decipher
their
sex-determination
evolutionary
history.
birth
sex
evolved
more
than
250
million
years
ago,
when
a
pivotal
male-determinant
located
in
discrete
region
proto-U
proto-V
ceased
recombining.
Over
time,
nested
inversions
led
step-wise
expansions,
accompanying
increasing
morphological
complexity
sexual
differentiation
seaweeds.
Unlike
XX/XY
ZW/ZZ,
evolve
mainly
by
gene
gain,
showing
minimal
degeneration.
They
are
structurally
dynamic,
act
as
genomic
’cradles’
fostering
new
genes.
Our
analyses
show
that
hermaphroditism
arose
from
ancestral
males
acquired
U-specific
genes
ectopic
recombination,
transition
an
system,
V-specific
moved
down
genetic
hierarchy
determination.
Both
events
lead
U
V
erosion
specific
characteristics.
Taken
together,
our
findings
offer
comprehensive
model
chromosome
evolution.
HIGHLIGHTS
Sexes
algae
due
recombination
male-determining
gene-containing
via
gain
‘cradles’
novelty
Emergence
involved
demotion
V-master
sex-determining
Introgression
female-specific
male
background
allowed
arise
Philosophical Transactions of the Royal Society B Biological Sciences,
Journal Year:
2021,
Volume and Issue:
376(1832), P. 20200426 - 20200426
Published: July 12, 2021
Triggers
and
biological
processes
controlling
male
or
female
gonadal
differentiation
vary
in
vertebrates,
with
sex
determination
(SD)
governed
by
environmental
factors
simple
to
complex
genetic
mechanisms
that
evolved
repeatedly
independently
various
groups.
Here,
we
review
evolution
across
major
clades
of
vertebrates
information
on
SD,
sexual
development
reproductive
modes.
We
offer
an
up-to-date
divergence
times,
species
diversity,
genomic
resources,
genome
size,
occurrence
nature
polyploids,
SD
systems,
chromosomes,
genes,
dosage
compensation
sex-biased
gene
expression.
Advances
sequencing
technologies
now
enable
us
study
the
at
broader
evolutionary
scales,
hope
pursue
a
sexomics
integrative
research
initiative
vertebrates.
The
vertebrate
sexome
comprises
interdisciplinary
integrated
differentiation,
reproduction
all
levels,
from
genomes,
transcriptomes
proteomes,
organs
involved
sex-specific
processes,
including
gonads,
secondary
those
transcriptional
sex-bias.
also
includes
ontogenetic
behavioural
aspects
malfunction
impairment
fertility.
Starting
data
generated
high-throughput
approaches,
encourage
others
contribute
expertise
building
understanding
sexomes
many
key
species.
This
article
is
part
theme
issue
‘Challenging
paradigm
chromosome
evolution:
empirical
theoretical
insights
focus
(Part
I)’.
Molecular Ecology,
Journal Year:
2024,
Volume and Issue:
33(24)
Published: Jan. 5, 2024
Sex
chromosomes
play
an
outsized
role
in
adaptation
and
speciation,
thus
deserve
particular
attention
evolutionary
genomics.
In
particular,
fusions
between
sex
autosomes
can
produce
neo-sex
chromosomes,
which
offer
important
insights
into
the
dynamics
of
chromosomes.
Here,
we
investigate
origin
previously
reported
Danaus
chromosome
within
tribe
Danaini.
We
assembled
annotated
genomes
Tirumala
septentrionis
(subtribe
Danaina),
Ideopsis
similis
(Amaurina),
Idea
leuconoe
(Euploeina)
Lycorea
halia
(Itunina)
identified
their
Z-linked
scaffolds.
found
that
resulting
from
fusion
a
Z
autosome
corresponding
to
Melitaea
cinxia
(McChr)
21
arose
common
ancestor
Danaina,
Amaurina
Euploina.
also
two
additional
as
W
further
fused
with
synteny
block
McChr31
I.
independent
occurred
ancestral
McChr12
L.
halia.
tested
possible
sexually
antagonistic
selection
turnover
by
analysing
genomic
distribution
sex-biased
genes
The
McChr21
involved
are
significantly
enriched
female-
male-biased
genes,
respectively,
could
have
hypothetically
facilitated
fixation
This
suggests
sexual
antagonism
Lepidoptera.
neo-Z
both
appear
fully
compensated
somatic
tissues,
but
extent
dosage
compensation
for
varies
across
tissues
species.
Oxford University Press eBooks,
Journal Year:
2019,
Volume and Issue:
unknown
Published: June 20, 2019
Abstract
‘Species’
are
central
to
understanding
the
origin
and
dynamics
of
biological
diversity;
explaining
why
lineages
split
into
multiple
distinct
species
is
one
main
goals
evolutionary
biology.
However,
existence
often
taken
for
granted,
precisely
what
meant
by
whether
they
really
exist
as
a
pattern
nature
has
rarely
been
modelled
or
critically
tested.
This
novel
book
presents
synthetic
overview
biology
species,
describing
are,
how
form,
consequences
boundaries
diversity
evolution,
patterns
accumulation
over
time.
The
thesis
that
represent
more
than
just
unit
taxonomy;
model
structured
well
groups
related
organisms
evolve.
author
adopts
an
intentionally
broad
approach
consider
constitute,
both
theoretically
empirically,
we
detect
them,
drawing
on
wealth
examples
from
microbes
multicellular
organisms.
Philosophical Transactions of the Royal Society B Biological Sciences,
Journal Year:
2022,
Volume and Issue:
377(1856)
Published: June 13, 2022
As
reflected
by
the
two
rules
of
speciation
(Haldane's
rule
and
large
X-/Z-effect),
sex
chromosomes
are
expected
to
behave
like
supergenes
speciation:
they
recombine
only
in
one
(XX
females
or
ZZ
males),
supposedly
recruit
sexually
antagonistic
genes
evolve
faster
than
autosomes,
which
can
all
contribute
pre-zygotic
post-zygotic
isolation.
While
this
has
been
mainly
studied
organisms
with
conserved
sex-determining
systems
highly
differentiated
(heteromorphic)
mammals,
birds
some
insects,
these
expectations
less
clear
organismal
groups
where
repeatedly
change
remain
mostly
homomorphic,
amphibians.
In
article,
we
review
proposed
roles
sex-linked
isolating
nascent
lineages
throughout
continuum
discuss
their
support
amphibians
given
current
knowledge
chromosome
evolution
modes.
Given
frequent
recombination
lack
differentiation,
argue
that
amphibian
not
become
speciation,
is
rarity
empirical
studies
consistent
a
‘large
effect’
frogs
toads.
The
diversity
high
potential
disentangle
evolutionary
mechanisms
responsible
for
emergence
other
organisms.
This
article
part
theme
issue
‘Genomic
architecture
supergenes:
causes
consequences’.