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. Author manuscript; available in PMC: 2018 Oct 30.
Published in final edited form as: Nat Genet. 2018 Apr 30;50(6):772–777. doi: 10.1038/s41588-018-0110-3

Figure 3. Inter-regulatory connections between color biosynthesis and some scent pathways.

Figure 3

a, Schematic representation of the rose chromosomes together with the position of candidate genes for anthocyanin pigments and volatile molecules biosynthesis and for flowering. Chromosome segments 2.4, 3.2-3.6 and 5.1 originating only from R. chinensis are indicated in light red. Anthocyanin synthesis genes are indicated in red; terpene biosynthesis genes in blue; flowering time genes in black; and development genes in green.

b, Schematic representation of interconnections between color (pink background) and scent (blue background) pathways. Gene expression data show the anti-correlation between miR156 and SPL9 genes during petal development. RT-qPCR was performed on petals harvested at three successive stages: Non-colored petals early during development (St1); Petals at onset of anthocyanin synthesis (St2); Fully colored petals (St3).

Black arrows: biosynthetic steps reported in the rose. Red arrows: biosynthetic steps reported in other species, but not in the rose. Green arrows: putative steps with unknown enzymes. Dashed black arrow: Several enzymatic steps. Maroon arrows: Gene regulation reported in A. thaliana, but not in the rose. Dashed maroon arrow: putative gene regulations. IPP: isopentenyl diphosphate, DMAPP: dimethylallyl diphosphate, DFR: dihydroflavonol-4-reductase, ANS: anthocyanidin synthase, 3GT: anthocyanidin 3-O-glucosyltransferase, GT1: anthocyanidin 3,5-diglucosyltransferase, GPPS: geranyl diphosphate synthase, FPPS: farnesyl diphosphate synthase, GGPPS: geranylgeranyl diphosphate synthase, GDS: germacrene D synthase, TPS: terpene synthase, NES: linalool/nerolidol synthase, CCD1/4 : carotenoid cleavage dioxygenases 1/4, NUDX1: nudix hydrolase1.