Fig. 4: Massive duplication and differentiation of sulfur-related genes in Allium. | Nature Communications

Fig. 4: Massive duplication and differentiation of sulfur-related genes in Allium.

From: Chromosome-level genome assembly of bunching onion illuminates genome evolution and flavor formation in Allium crops

Fig. 4

a The biosynthesis and hydrolysis pathway of ACSOs and the number of each flavor- related gene in the 14 genomes. The pathway in blue relates to the biosynthesis of isoalliin that dominants in bulb onion and bunching onion. The pathway in green relates to the biosynthesis of alliin that dominants in garlic. b Expression patterns of ACSOs biosynthesis genes were investigated in three Allium crops. R roots, L leaves, PS pseudo-stems, B bulbs, FS floral stalks, F flowers, GS garlic sprout. The gene details are listed in Supplementary Data 1–3. c Quantification of ACSOs among three Allium crops by ultra-high-performance liquid chromatography. The pie chart exhibited the percentages of three major ACSOs (alliin, isoalliin, and methiin). d The phylogenetic tree and the expression pattern of LFS gene families from A. fistulosum, A. cepa, and A. sativum genomes. The outer rings highlight the genes from A. fistulosum (red color), A. cepa (blue color), and A. sativum (green color). The heatmap exhibited the gene expressions in different tissues: R roots, L leaves, PS pseudo-stems, B bulbs, FS floral stalks, F flowers. Source data are provided as a Source Data file.

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