Evidence for pre-angiosperm WGD

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Region1

Ambo-grape-ambo (http://genomevolution.org/r/4s1n). One ambo region (top) has a weak syntenic signal to grape which consists of 3 collinear genes. However, there is a density of putative homologous gene pairs which may infer synteny.
Ambo-grape-ambo (http://genomevolution.org/r/4s1o). Expanded view of the above region. This gives a feeling for general "noise" from non-syntenic gene-pair matches. The three collinear genes definitely have the "feeling" of being real.
(http://genomevolution.org/r/4s2r)

Region2

Ambo-grape-ambo (http://genomevolution.org/r/4s1u). Interesting. . . while genes are definitely not in order in Ambo, coverage/fractionation to grape is enticing.

Region3

Ambo-ambo (http://genomevolution.org/r/4s2w0)

Difficult to find complete triplicated regions in grape. Found 2 for one, and one for the other: http://genomevolution.org/r/4s33

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