. The Compleat cladist : a primer of phylogenetic procedures. Cladistic analysis; Zoology -- Classification; Phylogeny. BASIC PHYLOGENETIC TECHNIQUES 21 5. You should have guessed by now that neither of the trees shown above is really a complete tree. The tree on the right lacks TS 5,6, and 7, and the one on the left lacks TS 3 and 4. Leaving out characters is not acceptable. About the only way that you can get into more trouble in phylogenetic analysis is to group by symplesiomorphies. Before we start, consider how characters might be homoplasious. A character might be a convergence/paralleli
. The Compleat cladist : a primer of phylogenetic procedures. Cladistic analysis; Zoology -- Classification; Phylogeny. BASIC PHYLOGENETIC TECHNIQUES 21 5. You should have guessed by now that neither of the trees shown above is really a complete tree. The tree on the right lacks TS 5,6, and 7, and the one on the left lacks TS 3 and 4. Leaving out characters is not acceptable. About the only way that you can get into more trouble in phylogenetic analysis is to group by symplesiomorphies. Before we start, consider how characters might be homoplasious. A character might be a convergence/parallelism, or it might be a reversal to the "plesiomorphic" character We must consider both kinds of homoplasies. hi Fig. a, TS 3 and 4 are put on the tree under the assumption that 3-1 and 4-1 arose independently (, via convergence/parallelism). InFig. , we have placed 5-1, 6-1, and 7-1 on the alternate tree as convergences. In Fig. Ic, we assume that 3-1 and 4-1 arose in the common ancestor of the group and that M has reverted to the plesiomorphic character. Thus, 3-0 and 4-0 appear on the tree as autapomoiphies of M. We have done the same thing for O in Fig. Id for TS 5-7, given the alternative Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Wiley, E. O. Lawrence, Kan. : Museum of Natural History, University of Kansas
Size: 1968px × 1270px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionbiodiversity, bookcontributorharv
