The programs in poptree-unix.tar.z are for (1) constuctiong a neighbor-joining tree or a UPGMA tree from allele frequency data of microsatellite DNA loci or other genetic markers and (2) computing heterozygosities and Gst. (1) Download poptree-unix.tar.gz and poptree-unix.readme onto your system in the binary mode. (2) Type "tar zxvf poptree-unix.tar.gz". (3) Type "source compile.sh" or "source compile.gcc.sh" to compile the programs.) (4) Read the read.me file first. If you have problems or comments, please send email to: takezaki@med.kagawa-u.ac.jp May 6, 2013 Naoko Takezaki Life Science Research Center Kagawa University Ikenobe 1750-1, Mikicho, Kitagun Kagawa 760-0793 Japan