exhaustiveMP(data, tree=NULL, method="branch.and.bound")phyDat (Schliep 2011) object containing DNA or other data.method="branch.and.bound")."branch.and.bound" or "exhaustive"."phylo" or "multiPhylo" object that is the MP tree or set of MP trees. It also returns the parsimony scores in attr(trees,"pscore") or attr(trees[[i]],"pscore") for the ith tree.
parsimony in the "phangorn" package (Schliep 2011).
Revell, L. J. (2012) phytools: An R package for phylogenetic comparative biology (and other things). Methods Ecol. Evol., 3, 217-223.
Schliep, K. P. (2011) phangorn: phylogenetic analysis in R. Bioinformatics, 27, 592-593.
mrp.supertree, optim.parsimony, pratchet