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Figure 6 | BMC Plant Biology

Figure 6

From: Defining the full tomato NB-LRR resistance gene repertoire using genomic and cDNA RenSeq

Figure 6

The evolutionary history of the largest NB-LRR gene cluster involving 16 NB-LRR genes on chromosome 4. (A) Physical mapping position of NB-LRR genes around the potato R2 cluster. (B) The phylogenetic analysis was inferred using the maximum likelihood method based on the general time reversible model in MEGA5. Cartoon potatoes and tomatoes at the end of the branches indicate the origin of the sequence. Bootstrap values higher than 60 are indicated above branches. The tree is drawn to scale, with branch lengths measured in terms of the number of substitutions per site. (C) Schematization of the duplication events that occurred in these genomic regions. Arrows highlight the most probable gene duplication events. NB-LRR genes are depicted as boxes, and the colors relate to (B).

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