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Species tree from quartet CFs: QMC

Cecile Ane edited this page Jul 27, 2018 · 3 revisions

Quartet MaxCut (QMC) uses quartets as input, and returns a tree containing as many input quartets as possible. To extract quartets with highest CFs and use them as input to QMC to get a tree, do this:

$ ../scripts/get-pop-tree.pl bucky-output/1_seqgen.CFs.csv

Script was called as follows:
perl get-pop-tree.pl bucky-output/1_seqgen.CFs.csv

Parsing major resolution of each 4-taxon set... done.
Running Quartet Max Cut...

Quartet MaxCut version 2.10 by Sagi Snir, University of Haifa
quartet file is 1_seqgen.QMC.txt,
Number of quartets is 15, max element 6
Number of quartets read: 15, max ele 6
Started working at  Mon May 23 09:44:12 2016
Ended working at  Mon May 23 09:44:12 2016

Quartet Max Cut complete, tree located in '1_seqgen.QMC.tre'.

I like to organize results, so I'll place this tree in the bucky folder:

$ cat 1_seqgen.QMC.tre
$ mv 1_seqgen.QMC.tre bucky-output
$ ls bucky-output/
1_seqgen.BUCKy.tar 1_seqgen.CFs.csv 1_seqgen.QMC.tre 1_seqgen.mb.tar 1_seqgen.mbsum.tar.gz

Next: an alternative pipeline to get gene trees and species tree with RAxML & ASTRAL.

PhyloNetworks Workshop

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