Lab5Assignment_BIO120F2023

Page 1 of 3 Lab 5 Assignment Table 5-6. Original character states for five hypothetical taxa. Type of leaves Reproductive body Type of stem Rhizomes Plant height Trichomes X simple spores hairy absent short present A compound seeds smooth present tall absent B compound seeds smooth present short absent C simple seeds smooth present tall absent D simple seeds hairy absent short absent Note: Taxon X is the outgroup. 1. Using the information in Table 5-6 above, fill in the following table with the appropriate coded character states. The first row is filled in as an example. Taxa Type of leaves (1) Reproductive body (2) Type of stem (3) Rhizomes (4) Plant height (5) Trichomes (6) X 0 0 0 0 0 A B C D 2. Based on these characters, draw a complete phylogenetic tree for these data (i.e., use all 6 characters to build one tree). © BIO120 Fall 2023

Page 2 of 3 3. How long is your tree (i.e., how many character state transformations)? 4. Identify the homoplasious character on your tree. 5. Based on your tree in Question #2 , is this homoplasy due to convergent evolution or character state reversal? 6. There is more than one equally parsimonious tree for these data. What do we mean when we say that a tree is “equally parsimonious” to another tree? 7. Draw another equally parsimonious tree. © BIO120 Fall 2023