The core eudicots also shared a common whole genome triplication (paleo-hexaploidy), which was estimated to have occurred after monocot-eudicot divergence but before the divergence of rosids and asterids. Many eudicot species have experienced additional whole genome duplications or triplications. For example, the model plant "Arabidopsis thaliana", the first plant to have its entire genome sequenced, has experienced at least two additional rounds of whole genome duplication since the duplication shared by the core eudicots. The most recent event took place before the divergence of the "Arabidopsis" and "Brassica" lineages, about to . Other examples include the sequenced eudicot genomes of apple, soybean, tomato, cotton, etc.