Lab1_Brandt.pdf - part 1 Using Cladistics to Construct...

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part 1. Using Cladistics to Construct Phylogenies Name: __Sydney Brandt_____________________________ Instructions: Use these critters to answer the following questions. Construct a character matrix for the above organisms. Use the following characters: (i) presence/absence of dorsal fin; (ii) presence/absence of vertical bars; (iii) presence/absence of spots; (iv) presence/absence of horizontal stripe; (v) presence/absence of pigmented dorsal fin; (vi) presence/absence of elongation of tail; (vii) presence/absence of a pelvic fin. i ii iii iv v vi vii O A A A A A A A A P P A P P A A B P A A A A A A C P P A A P P A D P P P A P P A E P P A A A A A F P P A P P A P Draw the most parsimonious phylogenetic tree for the above taxa, mapping all seven characters* onto the tree. (Hint: What is parsimony?).
Draw a second tree that shows identical phylogenetic relationships, in a different way. (Hint: don’t just flip the tree on its side or draw different shaped branches!)
Identify three monophyletic groups based on your tree (the groups can be completely

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