Segmental Duplication Database
A global analysis of human segmental duplications (> 90% identity and >1kb in length).

Feb 2009 (Build37) Published finishing human genome

March 2006 (Build36) Published finishing human genome

May 2004 (Build35) Published finishing human genome
July 2003 (Build34)

June 2002 (Build30)

April 2002 Update

August 2001 (oo33) Published working draft human genome


Duplication Browser (Build35 and build34)
UCSC Genome Browser with additional duplication-related data including SDD-similar sequences.

UCSC August 2001 Browser with additional duplication-related data including SDD-similar sequences. (Also available in August 2001 UCSC Human Genome Browser)

UCSC Human Genome Browser

Eichler Lab Homepage
More information and data from the Eichler Lab

Eichler Lab inhouse data

Code and protocol for segmental duplication analysis (WGAC)

For questions regarding scientific content, please contact Xinwei She, from the laboratory of Evan Eichler, University of Washington.


  1. She X, Jiang Z, Clark RA, Liu G, Cheng Z, Tuzun E, Church DM, Sutton G, Halpern AL, Eichler EE. Shotgun sequence assembly and recent segmental duplications within the human genome. Nature. 2004 Oct 20;431(7011):927-930. (Pubmed)

  2. She X, Horvath JE, Jiang Z, Liu G, Furey TS, Christ L, Clark R, Graves T, Gulden CL, Alkan C, Bailey JA, Sahinalp C, Rocchi M, Haussler D, Wilson RK, Miller W, Schwartz S, Eichler EE. The structure and evolution of centromeric transition regions within the human genome. Nature. 2004 Aug 19;430(7002):857-64. (Pubmed)

  3. Bailey JA, Gu Z, Clark RA, Reinert K, Samonte RV, Schwartz S, Adams MD, Myers EW, Li PW, Eichler EE. Recent segmental duplications in the human genome. Science. 2002 Aug 9;297(5583):1003-7.(Pubmed)

  4. Bailey JA, Yavor AM, Massa HF, Trask BJ, Eichler EE. Segmental duplications: organization and impact within the current human genome project assembly. Genome Res. 2001 Jun;11(6):1005-17. (Pubmed)