G3 Genes Genomes Genetics,
Год журнала:
2024,
Номер
14(11)
Опубликована: Авг. 30, 2024
Abstract
Codon
usage
bias,
or
the
unequal
use
of
synonymous
codons,
is
observed
across
genes,
genomes,
and
between
species.
It
has
been
implicated
in
many
cellular
functions,
such
as
translation
dynamics
transcript
stability,
but
can
also
be
shaped
by
neutral
forces.
We
characterized
codon
1,154
strains
from
1,051
species
fungal
subphylum
Saccharomycotina
to
gain
insight
into
biases,
molecular
mechanisms,
evolution,
genomic
features
contributing
patterns.
found
a
general
preference
for
A/T-ending
codons
correlations
GC
content,
tRNA-ome
size.
bias
distinct
12
orders
degree
that
yeasts
classified
with
an
accuracy
>90%
using
machine
learning
algorithm.
which
impacted
translational
selection.
it
was
influenced
combination
features,
including
number
coding
sequences,
BUSCO
count,
genome
length.
Our
analysis
revealed
extreme
Saccharomycodales
associated
lack
predicted
arginine
tRNAs
decode
CGN
leaving
only
AGN
encode
arginine.
Analysis
gene
expression,
tRNA
evolution
suggests
avoidance
decline
function.
Consistent
previous
findings,
within
bias.
However,
we
find
cases
along
yeast
lineages,
suggesting
additional
forces
may
shaping
specific
codons.
PLoS Biology,
Год журнала:
2024,
Номер
22(9), С. e3002832 - e3002832
Опубликована: Сен. 23, 2024
Many
distantly
related
organisms
have
convergently
evolved
traits
and
lifestyles
that
enable
them
to
live
in
similar
ecological
environments.
However,
the
extent
of
phenotypic
convergence
evolving
through
same
or
distinct
genetic
trajectories
remains
an
open
question.
Here,
we
leverage
a
comprehensive
dataset
genomic
data
from
1,049
yeast
species
subphylum
Saccharomycotina
(Kingdom
Fungi,
Phylum
Ascomycota)
explore
signatures
convergent
evolution
cactophilic
yeasts,
specialists
associated
with
cacti.
We
inferred
association
yeasts
cacti
arose
independently
approximately
17
times.
Using
machine
learning-based
approach,
further
found
cactophily
can
be
predicted
76%
accuracy
both
functional
data.
The
most
informative
feature
for
predicting
was
thermotolerance,
which
likely
altered
evolutionary
rates
genes
impacting
cell
envelope
several
lineages.
also
identified
horizontal
gene
transfer
duplication
events
plant
wall-degrading
enzymes
clades,
suggesting
putatively
adaptive
disparate
molecular
mechanisms.
Notably,
multiple
their
close
relatives
been
reported
as
emerging
human
opportunistic
pathogens,
lifestyle-and
perhaps
more
generally
favoring
thermotolerance-might
preadapt
cause
disease.
This
work
underscores
potential
multifaceted
approach
involving
high-throughput
shed
light
onto
adaptation
highlights
how
wild
environments
could
facilitate
transition
pathogenicity.
bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2025,
Номер
unknown
Опубликована: Май 10, 2025
Abstract
Antifungal
drug
resistance
is
a
major
challenge
in
fungal
infection
management.
Numerous
genomic
changes
are
known
to
contribute
acquired
clinical
isolates
of
specific
pathogens,
but
whether
they
broadly
explain
natural
across
entire
lineages
unknown.
We
leveraged
genomic,
ecological,
and
phenotypic
trait
data
from
naturally
sampled
strains
nearly
all
species
subphylum
Saccharomycotina
examine
the
evolution
eight
antifungal
drugs.
The
phylogenetic
distribution
varied
by
drug;
fluconazole
was
widespread,
while
5-fluorocytosine
rare,
except
Lipomycetales
.
A
random
forest
algorithm
trained
on
predicted
drug-resistant
yeasts
with
54-75%
accuracy.
In
general,
frequency
correlated
prediction
accuracy,
being
consistently
highest
accuracy
(74.9%).
Fluconazole
similar
between
models
genome-wide
variation
presence
number
InterPro
protein
annotations
(74.9%
accuracy)
those
amino
acid
sequence
alignment
Erg11,
be
involved
(74.3-74.9%
accuracy).
Interestingly,
top
Erg11
residues
for
predicting
do
not
overlap
with,
spatially
close
to,
less
conserved
than
previously
linked
Candida
albicans
silico
deep
mutational
scanning
C.
revealed
that
variants
implicated
cases
almost
universally
destabilizing
our
most
informative
energetically
more
neutral,
explaining
why
latter
much
common
former
populations.
Importantly,
previous
experimental
analyses
have
shown
residues,
despite
having
never
been
directly
cases,
can
resistance.
Our
results
suggest
studies
yeast
encountered
clinic
will
yield
fuller
understanding
Proceedings of the National Academy of Sciences,
Год журнала:
2025,
Номер
122(23)
Опубликована: Июнь 3, 2025
Many
remarkable
phenotypes
have
repeatedly
occurred
across
vast
evolutionary
distances.
When
convergent
traits
emerge
on
the
tree
of
life,
they
are
sometimes
driven
by
same
underlying
gene
families,
while
other
times,
many
different
families
involved.
Conversely,
a
family
may
be
recruited
for
single
trait
or
traits.
To
understand
general
rules
governing
convergence
at
both
genomic
and
phenotypic
levels,
we
systematically
tested
associations
between
56
binary
metabolic
count
in
14,785
from
993
Saccharomycotina
yeasts.
Using
recently
developed
phylogenetic
approach
that
reduces
spurious
correlations,
found
expansion
contraction
were
significantly
linked
to
gain
loss
45/56
(80%)
While
595/739
(81%)
significant
associated
with
only
one
trait,
also
identified
several
"keystone"
up
13/56
(23%)
all
Strikingly,
most
these
known
encode
enzymes
transporters,
including
members
industrially
relevant
MAL
tose
fermentation
loci
baker's
yeast
Saccharomyces
cerevisiae.
These
results
indicate
evolution
level
more
widespread
deeper
timescales
than
previously
believed.
Yeast,
Год журнала:
2024,
Номер
41(10), С. 615 - 628
Опубликована: Сен. 18, 2024
ABSTRACT
Yeasts
in
the
subphylum
Saccharomycotina
are
found
across
globe
disparate
ecosystems.
A
major
aim
of
yeast
research
is
to
understand
diversity
and
evolution
ecological
traits,
such
as
carbon
metabolic
breadth,
insect
association,
cactophily.
This
includes
studying
aspects
traits
like
genetic
architecture
or
association
with
other
phenotypic
traits.
Genomic
resources
have
grown
rapidly.
Ecological
data,
however,
still
limited
for
many
species,
especially
those
only
known
from
species
descriptions
where
usually
a
number
strains
studied.
Moreover,
information
recorded
natural
language
format
limiting
high
throughput
computational
analysis.
To
address
these
limitations,
we
developed
an
ontological
framework
analysis
ecology.
total
1,088
were
added
Ontology
Yeast
Environments
(OYE)
analyzed
machine‐learning
connect
genotype
flexible
can
be
extended
additional
isolates,
environmental
sequencing
data.
Widespread
adoption
OYE
would
greatly
aid
study
macroecology
subphylum.
bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2024,
Номер
unknown
Опубликована: Июль 23, 2024
Many
remarkable
innovations
have
repeatedly
occurred
across
vast
evolutionary
distances.
When
convergent
traits
emerge
on
the
tree
of
life,
they
are
sometimes
driven
by
same
underlying
gene
families,
while
other
times
many
different
families
involved.
Conversely,
a
family
may
be
recruited
for
single
trait
or
traits.
To
understand
general
rules
governing
convergence
at
both
genomic
and
phenotypic
levels,
we
systematically
tested
associations
between
56
binary
metabolic
count
in
14,710
from
993
species
Saccharomycotina
yeasts.
Using
recently
developed
phylogenetic
approach
that
reduces
spurious
correlations,
discovered
expansion
contraction
was
significantly
linked
to
gain
loss
45/56
(80%)
While
601/746
(81%)
significant
were
associated
with
only
one
trait,
also
identified
several
'keystone'
up
13/56
(23%)
all
These
results
indicate
yeasts
governed
narrow
set
major
genetic
elements
mechanisms.
bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2024,
Номер
unknown
Опубликована: Авг. 14, 2024
Abstract
Reactive
oxygen
species
(ROS)
are
highly
reactive
molecules
encountered
by
yeasts
during
routine
metabolism
and
interactions
with
other
organisms,
including
host
infection.
Here,
we
characterized
the
variation
in
resistance
to
ROS
across
ancient
yeast
subphylum
Saccharomycotina
used
machine
learning
(ML)
identify
gene
families
whose
sizes
were
predictive
of
resistance.
The
most
features
enriched
related
cell
wall
organization
included
two
reductase
families.
We
estimated
quantitative
contributions
each
species’
classification
guide
experimental
validation
showed
that
overexpression
old
yellow
enzyme
(OYE)
increased
Kluyveromyces
lactis
,
while
Saccharomyces
cerevisiae
mutants
lacking
multiple
mannosyltransferase-encoding
genes
hypersensitive
ROS.
Altogether,
this
work
provides
a
framework
for
how
ML
can
uncover
genetic
mechanisms
underlying
trait
diverse
inform
manipulation
clinical
biotechnological
applications.