By the latter half of the Paleozoic Era, plants had undergone extensive evolution and occupied many previously vacant environments (this phenomenon is sometimes called adaptive radiation).
Even the fishes from the youngest of these lakes (Victoria), which exhibit the lowest amount of skull shape disparity, have undergone extensive preorbital evolution relative to other craniofacial traits.
Phylogenetic analysis of amidase and urea carboxylase sequences across kingdoms showed that the urea carboxylase domain in urea amidolyase and the urea carboxylase protein itself have undergone extensive independent evolution.
Our results clearly showed that OR genes in primates have undergone extensive birth-and-death evolution.
Together, these data suggest that the genome regions containing hydrophobin gene loci have undergone extensive recombination during their evolution.
It is clear that the traditional molecular model systems for protostomes (e.g. Drosophila melanogaster and Caenorhabditis elegans), which are restricted to the Ecdysozoa, have undergone extensive gene loss during evolution.
A. pisum is thought to have undergone extensive gene duplication during its evolution [ 10], which our LSE comparisons with D. noxia affirm.
Nevertheless it is questionable whether neighbouring BAC-contigs on the reference genome are really neighbours in the D. labrax genome or whether chromosomes have undergone extensive inter-chromosomal rearrangements during evolution.
These combined results suggest that the coffee tree, tomato and grapevine genomes, although presenting numerous conserved segments, have undergone extensive rearrangements leading to specific chromosomal evolution since their divergence from their last common ancestor.
