160217 105

0:00 Review
1:22 Learning Outcomes for Today
2:27 Rooting an unrooted tree
7:34 Using a rooted tree to infer polarity of evolution
9:40 How do we know when a tree is the correct tree?
10:56 Two methods of creating trees: parsimony and distance
13:19 Parsimony
21:32 Inferring where in a phylogeny traits evolved, using parsimony
30:48 Distance
34:58 Assessing distances
37:03 Filling in distance matrices
43:32 Drawing a tree from a distance matrix
46:32 Announcements, and For Next Class…