The Complexity of Volatile Terpene Biosynthesis in Roses: Particular Insights into β-Citronellol Production
PLANT PHYSIOLOGY,
Journal Year:
2024,
Volume and Issue:
196(3), P. 1908 - 1922
Published: Aug. 26, 2024
Abstract
The
fascinating
scent
of
rose
(Rosa
genus)
flowers
has
captivated
human
senses
for
centuries,
making
them
one
the
most
popular
and
widely
used
floral
fragrances.
Despite
much
progress
over
last
decade,
many
biochemical
pathways
responsible
scents
remain
unclear.
We
analyzed
compositions
from
various
varieties
selected
modern
cultivar
Rosa
hybrida
“Double
Delight”
as
a
model
system
to
unravel
formation
dominant
volatile
terpenes,
which
contribute
substantially
fragrance.
Key
genes
involved
in
terpene
biosynthesis
were
functionally
characterized.
Cytosolic
geranyl
diphosphate
(GPP)
generated
by
geranyl/farnesyl
synthase
(G/FPPS1)
catalysis
played
pivotal
role
production,
synthases
roses
play
an
important
but
not
geraniol,
citral,
or
β-citronellol.
Subsequently,
series
enzymes,
including
geraniol
dehydrogenase,
geranial
reductase,
12-oxophytodienoate
citronellal
characterized
transformation
β-citronellol
through
three
successive
steps.
Interestingly,
pathway
appears
be
conserved
other
horticultural
plants
like
Lagerstroemia
caudata
Paeonia
lactiflora.
Our
findings
provide
valuable
insights
into
terpenoid
compounds
offer
essential
gene
resources
future
breeding
molecular
modification
efforts.
Language: Английский
Gene Duplication and Functional Diversification of MADS-Box Genes in Malus × domestica following WGD: Implications for Fruit Type and Floral Organ Evolution
Baoan Wang,
No information about this author
Yao Xiao,
No information about this author
Mengbo Yan
No information about this author
et al.
International Journal of Molecular Sciences,
Journal Year:
2024,
Volume and Issue:
25(16), P. 8962 - 8962
Published: Aug. 17, 2024
The
evolution
of
the
MADS-box
gene
family
is
essential
for
rapid
differentiation
floral
organs
and
fruit
types
in
angiosperms.
Two
key
processes
drive
families:
duplication
functional
differentiation.
Duplicated
copies
provide
material
variation,
while
advantageous
mutations
can
confer
new
functions
on
copies.
In
this
study,
we
selected
Rosaceae
family,
which
includes
a
variety
flower
organs,
as
well
species
that
existed
before
after
whole-genome
(WGD).
results
indicate
different
are
associated
with
duplications
WGD
events.
While
most
derived
from
have
been
lost,
genes
not
only
retain
but
also
undergo
further
duplication.
sequences,
protein
structures,
expression
patterns
these
undergone
significant
This
work
provides
clear
example
context
differentiation,
offering
insights
into
organs.
Language: Английский