Comment on

• Evidence of en bloc duplication in vertebrate genomes.

  Abi-Rached L, Gilles A, Shiina T, Pontarotti P, Inoko H. Abi-Rached L, et al. Nat Genet. 2002 May;31(1):100-5. doi: 10.1038/ng855. Epub 2002 Apr 22. Nat Genet. 2002. PMID: 11967531
• Extensive genomic duplication during early chordate evolution.

  McLysaght A, Hokamp K, Wolfe KH. McLysaght A, et al. Nat Genet. 2002 Jun;31(2):200-4. doi: 10.1038/ng884. Epub 2002 May 28. Nat Genet. 2002. PMID: 12032567
• Age distribution of human gene families shows significant roles of both large- and small-scale duplications in vertebrate evolution.

  Gu X, Wang Y, Gu J. Gu X, et al. Nat Genet. 2002 Jun;31(2):205-9. doi: 10.1038/ng902. Epub 2002 May 28. Nat Genet. 2002. PMID: 12032571