Abstract
Whole genome duplication (WGD) events are considered a major feature of the evolution of eukaryotic genomes, providing raw materials in where natural selection can act to promote increasing complexity. Two rapid rounds of WGD (known as 1R and 2R) occurred in the all vertebrates common ancestor around 550 Mya ago. A third round of WGD happened in the base of the teleost lineage (teleost-sp…