The Soybean Genome Database (SoyGD): a browser for display of duplicated, polyploid, regions and sequence tagged sites on the integrated physical and genetic maps of Glycine max. - Jeffry L. Shultz; Deepak Kurunam; Kay Shopinski; M. Javed Iqbal; Samreen Kazi; Kimberley Zobrist; Rabia Bashir; Satsuki Yaegashi; Nagajyothi Lavu; Ahmed J. Afzal; Charles R. Yesudas; M. Abdelmajid Kassem; et al. (Nucleic Acids Res., 2006)