Image:4at-vv-cp.png

Comparison of sytnenic regions from Arabidopsis (At), Grape (Vv), and Papaya (Cp) using the CoGe comparative genomics platform. The genome evolution tree on the right shows the relative phylogeny of these organisms with genome duplication events labeled as triangles. These triangles represent the process of gene loss (i.e. fractionation) following genome duplications that returns a tetraploid genome's gene content to one that is similar to its pre-duplicated ancestor. However, the overall genomic structure changes drastically as genes may be lost from either homeologous (i.e. derived from the genome duplication) genomic region. For more information on CoGe and interpreting its results, please visit CoGe's tutorial page.)