1 files changed, 17 insertions, 0 deletions

diff --git a/biology/grappa/pkg-descr b/biology/grappa/pkg-descr
new file mode 100644
index 000000000000..ce732438a251
--- /dev/null
+++ b/biology/grappa/pkg-descr
@@ -0,0 +1,17 @@
+GRAPPA: Genome Rearrangements Analysis under Parsimony and other
+Phylogenetic Algorithms
+				     
+This suite of programs implements the approach to phylogeny
+reconstruction from gene orders described in the paper
+   Moret, B.M.E., Wyman, S., Bader, D.A., Warnow, T., and Yan, M.,
+   ``A detailed study of breakpoint analysis,''
+   Proc. 6th Pacific Symp. Biocomputing PSB 2001, Hawaii (2001).
+In its current state, "grappa" allows one to explore either the
+space of all possible trees on n labelled leaves or the space of all
+such trees that obey (are refinements of) a particular constraint tree.
+
+"invdist" takes the first two genomes in the input file and returns
+their inversion distance.
+"distmat" prints the inversion and breakpoint distance matrices. 
+
+WWW: http://www.cs.unm.edu/~moret/GRAPPA/