Proceedings of the National Academy of Sciences,
Год журнала:
2019,
Номер
116(44), С. 22219 - 22228
Опубликована: Окт. 14, 2019
Horizontal
acquisition
of
bacterial
genes
is
presently
recognized
as
an
important
contribution
to
the
adaptation
and
evolution
eukaryotic
genomes.
However,
mechanisms
underlying
expression
consequent
selection
fixation
prokaryotic
in
new
setting
are
largely
unknown.
Here
we
show
that
composing
pathway
for
synthesis
essential
vitamin
B1
(thiamine)
were
lost
ancestor
a
yeast
lineage,
Wickerhamiella/Starmerella
(W/S)
clade,
known
harbor
unusually
large
number
alien
origin.
The
thiamine
was
subsequently
reassembled,
at
least
twice,
by
multiple
HGT
events
from
different
donors
involving
both
single
entire
operons.
In
W/S-clade
species
Starmerella
bombicola
obtained
direct
genetic
evidence
all
functional.
reconstructed
composed
operating
coordinately
scavenge
derivatives
environment.
newly
acquired
operons
involved
repertoire
until
now
only
sparsely
documented,
namely
longer
intergenic
regions,
post-horizontal
gene
transfer
(HGT)
fusions
fostering
coordinated
expression,
relocation,
possibly
recombination
generating
mosaic
genes.
results
provide
additional
occurred
recurrently
this
lineage
crucial
reestablishment
functions
similar
used
across
broad
range
microbes
promote
their
Molecular Biology and Evolution,
Год журнала:
2020,
Номер
37(11), С. 3243 - 3257
Опубликована: Июль 10, 2020
Abstract
Diatoms
are
a
diverse
group
of
mainly
photosynthetic
algae,
responsible
for
20%
worldwide
oxygen
production,
which
can
rapidly
respond
to
favorable
conditions
and
often
outcompete
other
phytoplankton.
We
investigated
the
contribution
horizontal
gene
transfer
(HGT)
its
ecological
success.
A
large-scale
phylogeny-based
prokaryotic
HGT
detection
procedure
across
nine
sequenced
diatoms
showed
that
3–5%
their
proteome
has
origin
large
influx
occurred
at
ancestor
diatoms.
More
than
90%
genes
expressed,
species-specific
in
Phaeodactylum
tricornutum
undergo
strong
purifying
selection.
Genes
derived
from
implicated
several
processes
including
environmental
sensing
expand
metabolic
toolbox.
Cobalamin
(vitamin
B12)
is
an
essential
cofactor
roughly
half
only
produced
by
bacteria.
Five
consecutive
involved
final
synthesis
cobalamin
biosynthetic
pathway,
could
function
as
scavenging
repair
genes,
were
detected
HGT.
The
full
suite
these
was
cold-adapted
diatom
Fragilariopsis
cylindrus.
This
might
give
originating
Southern
Ocean,
region
typically
depleted
cobalamin,
competitive
advantage.
Overall,
we
show
prevalent
mechanism
actively
used
adaptive
capabilities.
New Phytologist,
Год журнала:
2021,
Номер
233(3), С. 1317 - 1330
Опубликована: Ноя. 19, 2021
Although
secondary
metabolites
are
typically
associated
with
competitive
or
pathogenic
interactions,
the
high
bioactivity
of
endophytic
fungi
in
Xylariales,
coupled
their
abundance
and
broad
host
ranges
spanning
all
lineages
land
plants
lichens,
suggests
that
enhanced
metabolism
might
facilitate
symbioses
phylogenetically
diverse
hosts.
Here,
we
examined
metabolite
gene
clusters
(SMGCs)
across
96
Xylariales
genomes
two
clades
(Xylariaceae
s.l.
Hypoxylaceae),
including
88
newly
sequenced
endophytes
closely
related
saprotrophs
pathogens.
We
paired
genomic
data
extensive
metadata
on
endophyte
hosts
substrates,
enabling
us
to
examine
factors
breadth
symbiotic
interactions
ecological
roles.
All
contain
hyperabundant
SMGCs;
however,
Xylariaceae
have
increased
numbers
duplications,
horizontal
transfers
(HGTs)
SMGCs.
Enhanced
metabolic
diversity
is
a
greater
capacity
for
lignocellulose
decomposition.
Our
results
suggest
that,
as
substrate
generalists,
experience
selection
diversify
SMGCs
compared
more
ecologically
specialised
Hypoxylaceae
species.
Overall,
our
provide
new
evidence
may
symbiosis
hosts,
highlighting
importance
microbial
drive
fungal
diversity.
Yeast,
Год журнала:
2023,
Номер
40(11), С. 511 - 539
Опубликована: Ноя. 1, 2023
Abstract
Tropical
rainforests
and
related
biomes
are
found
in
Asia,
Australia,
Africa,
Central
South
America,
Mexico,
many
Pacific
Islands.
These
encompass
less
than
20%
of
Earth's
terrestrial
area,
may
contain
about
50%
the
planet's
biodiversity,
endangered
regions
vulnerable
to
deforestation.
have
a
great
diversity
substrates
that
can
be
colonized
by
yeasts.
unicellular
fungi
contribute
recycling
organic
matter,
serve
as
food
source
for
other
organisms,
or
ecological
interactions
benefit
harm
plants,
animals,
fungi.
In
this
review,
we
summarize
most
important
studies
yeast
biodiversity
carried
out
these
biomes,
well
new
data,
discuss
ecology
genera
frequently
isolated
from
tropical
forests
potential
microorganisms
bioinnovation.
We
show
forest
represent
tremendous
species.
Although
studies,
using
culture‐dependent
methods,
already
been
Africa
Australasia
remain
an
underexplored
novel
hope
review
will
encourage
researchers
study
yeasts
unexplored
habitats.
Proceedings of the National Academy of Sciences,
Год журнала:
2019,
Номер
116(12), С. 5613 - 5622
Опубликована: Март 6, 2019
Significance
Horizontal
gene
transfer
(HGT)
is
the
of
genetic
information
between
genomes
by
a
route
other
than
from
parent
to
offspring.
Of
particular
interest
here
are
transfers
transporter-encoding
genes,
which
can
allow
an
organism
utilize
new
metabolite,
often
via
acquisition
single
foreign
gene.
Here
we
have
identified
range
HGT
events
characterized
substrate
preferences
for
each
encoded
protein,
and
demonstrated
that
gain
one
these
HGTs
provide
yeast
with
distinct
competitive
advantage
in
given
environment.
This
has
wide
implications
understanding
how
genes
drastically
influence
environments
fungi
colonize.
Fermentation,
Год журнала:
2018,
Номер
4(3), С. 74 - 74
Опубликована: Сен. 4, 2018
Candida
stellata
is
an
imperfect
yeast
of
the
genus
that
belongs
to
order
Saccharomycetales,
while
phylum
Ascomycota.
C.
was
isolated
originally
from
a
must
overripe
in
Germany
but
widespread
natural
and
artificial
habitats.
with
taxonomic
history
characterized
by
numerous
changes;
it
either
heterogeneous
species
or
easily
confused
other
colonize
same
substrates.
The
strain
DBVPG
3827,
frequently
used
investigate
oenological
properties
stellata,
recently
renamed
as
Starmerella
bombicola,
which
can
be
zemplinina
related
like
lactis-condensi.
Strains
have
been
processing
foods
feeds
for
thousands
years.
This
species,
commonly
grape
must,
has
found
competitive
persistent
fermentation
both
white
red
wine
various
regions
world
tolerates
concentration
at
least
9%
(v/v)
ethanol.
Although
these
yeasts
produce
spoilage,
several
studies
conducted
characterize
their
ability
desirable
metabolites
flavor,
such
acetate
esters,
presence
enzymatic
activities
enhance
aroma,
β-glucosidase.
microorganism
could
also
possess
many
interesting
technological
applied
food
processing.
Exo
endoglucosidases
polygalactosidase
are
important
degradation
β-glucans
produced
Botrytis
cinerea.
In
traditional
balsamic
vinegar
production,
shapes
aromatic
profile
vinegar,
producing
ethanol
fructose
high
concentrations
glycerol,
succinic
acid,
ethyl
acetate,
acetoin.
Chemical
characterization
exocellular
polysaccharides
non-Saccharomyces
revealed
them
essentially
mannoproteins
mannose
contents,
ranging
73–74%
bombicola.
Numerous
clearly
proven
macromolecules
make
multiple
positive
contributions
quality.
Recent
on
strains
wines
made
co-fermentation
Saccharomyces
cerevisiae
aroma
attributes
individual
were
apparent
when
inoculation
protocol
permitted
growth
activity
yeasts.
exploitation
diversity
biochemical
sensory
interest
obtaining
new
products.
Yeast,
Год журнала:
2020,
Номер
37(4), С. 313 - 320
Опубликована: Фев. 15, 2020
The
Wickerhamiella
and
Starmerella
genera
form
a
clade
(W/S
clade)
that
branches
close
to
Yarrowia
lipolytica
in
the
Saccharomycotina
species
tree.
It
comprises
approximately
90
recognized
50
putative
new
not
formally
described
yet.
large
majority
of
members
W/S
are
ecologically
associated
with
flowers
floricolous
insects.
Many
exhibit
unusual
metabolic
traits,
like
fructophily
production
sophorolipids,
which
glycolipids
can
be
used
as
environmentally
friendly
biosurfactants.
Genomic
data
have
only
firmly
established
but
also
revealed
tumultuous
evolution
metabolism
marked
by
losses
gains
important
pathways,
among
alcoholic
fermentation.
Possibly
most
surprising
finding
brought
light
comparative
genomics
concerned
number
genes
acquired
some
from
bacteria
through
horizontal
gene
transfer,
many
were
shown
functional
their
setting.
This
was
facilitated
genetic
tractability
one
clade,
bombicola,
is
for
industrial
sophorolipids.
We
suggest
high-density
coverage
genome
sequencing
this
combined
possibility
conduct
molecular
genetics
experiments
at
least
species,
has
potential
set
stage
yet
more
exciting
discoveries
concerning
yeast
metabolism.
Current Biology,
Год журнала:
2019,
Номер
29(15), С. 2555 - 2562.e8
Опубликована: Июль 25, 2019
Cell
type
in
budding
yeasts
is
determined
by
the
genotype
at
mating-type
(MAT)
locus,
but
yeast
species
differ
widely
their
mating
compatibility
systems
and
life
cycles.
Among
sexual
yeasts,
heterothallic
are
those
which
haploid
strains
fall
into
two
distinct
stable
types
(MATa
MATα),
whereas
homothallic
that
can
switch
or
appear
not
to
have
[1Kurtzman
C.P.
Fell
J.W.
Boekhout
T.
The
Yeasts,
a
Taxonomic
Study.
Elsevier,
2011Google
Scholar,
2Wilson
A.M.
Wilken
P.M.
van
der
Nest
M.A.
Steenkamp
E.T.
Wingfield
M.J.
B.D.
Homothallism:
an
umbrella
term
for
describing
diverse
behaviours.IMA
Fungus.
2015;
6:
207-214Crossref
PubMed
Scopus
(58)
Google
Scholar].
evolutionary
history
of
these
uncertain,
particularly
regarding
number
direction
transitions
between
homothallism
heterothallism,
whether
process
switching
had
single
origin
[3Lin
X.
Heitman
J.
Mechanisms
fungi
heterothallism
homothallism.in:
Kronstad
Taylor
Casselton
L.A.
Sex
Fungi.
ASM
Press,
2007:
35-57Google
4Muller
H.
Hennequin
C.
Dujon
B.
Fairhead
Ascomycetes:
Candida
MAT
locus:
comparing
genomes
hemiascomycetous
yeasts.in:
247-263Google
5Hanson
S.J.
Wolfe
K.H.
An
perspective
on
switching.Genetics.
2017;
206:
9-32Crossref
(51)
Here,
we
inferred
332
from
genome
sequences.
By
reference
robust
phylogenomic
tree
[6Shen
X.X.
Opulente
D.A.
Kominek
Zhou
Steenwyk
J.L.
Buh
K.V.
Haase
M.A.B.
Wisecaver
J.H.
Wang
M.
Doering
D.T.
et
al.Tempo
mode
evolution
subphylum.Cell.
2018;
175:
1533-1545Abstract
Full
Text
PDF
(225)
Scholar],
detected
homothallism,
among
different
forms
homothallism.
We
find
has
arisen
independently
least
11
times
during
greatly
outnumber
opposite
(31
versus
3).
Although
3-locus
MAT-HML-HMR
mechanism
as
seen
Saccharomyces
cerevisiae
simpler
"flip/flop"
mechanisms
evolved
separately
10
other
groups
yeasts.
These
results
point
adaptive
value
unicellular
fungi.