http://reply.papertrans.cn/2/108/10764/10764-21.png
http://reply.papertrans.cn/2/108/10764/10764-22.png
Submitted on: 11 May 1998.
Revised on: 14 June 1998.
Accepted on: 23 July 1998.
___________________GigaScience---OXFORD UNIV PRESS
http://reply.papertrans.cn/2/108/10764/10764-24.png
Submitted on: 22 December 2001.
Revised on: 31 March 2002.
Accepted on: 12 April 2002.
___________________GigaScience---OXFORD UNIV PRESS
Submitted on: 23 December 2007.
Revised on: 04 March 2008.
Accepted on: 20 April 2008.
___________________GigaScience---OXFORD UNIV PRESS
http://reply.papertrans.cn/2/108/10764/10764-27.png
Submitted on: 18 July 2008.
Revised on: 29 September 2008.
Accepted on: 10 October 2008.
___________________GigaScience---OXFORD UNIV PRESS
Submitted on: 02 October 2011.
Revised on: 30 October 2011.
Accepted on: 30 November 2011.
___________________GigaScience---OXFORD UNIV PRESS
Submitted on: 14 April 2013.
Revised on: 17 July 2013.
Accepted on: 30 July 2013.
___________________GigaScience---OXFORD UNIV PRESS