Figure 1: Alignment of co-linear regions from Arabidopsis (green), papaya (magenta), poplar (blue) and grape (red). | Nature

Figure 1: Alignment of co-linear regions from Arabidopsis (green), papaya (magenta), poplar (blue) and grape (red).

From: The draft genome of the transgenic tropical fruit tree papaya (Carica papaya Linnaeus)

Figure 1

‘Vv chr16r’ is an unordered ultracontig that has been assigned to grape chromosome 16. Triangles represent individual genes with transcriptional orientations. Several Arabidopsis regions belong to previously identified duplication segments (α3, α11, α20, β6, γ7, shown to the right)23. The whole syntenic alignment supports four distinct whole-genome duplication events: α, β within the Arabidopsis lineage, an independent duplication in poplar, and γ which is shared by all four eudicot genomes. Co-linear regions can be grouped into three γ sub-genomes based on Camin–Sokal parsimony criteria.

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