Phylogeny and the Tree of Life Chapter 26 Phylogeny and the Tree of Life

Phylogeny is the evolutionary history of a species or group of related species Phylogenies show evolutionary relationships © 2011 Pearson Education, Inc.

Figure 26.2 Figure 26.2 An unexpected family tree.

Binomial Nomenclature Lumbricus terrestris Panthera leo Canis lupis Canis domesticus © 2011 Pearson Education, Inc.

Species: Panthera pardus Genus: Panthera Family: Felidae Order: Figure 26.3 Species: Panthera pardus Genus: Panthera Family: Felidae Order: Carnivora Class: Mammalia Figure 26.3 Linnaean classification. Phylum: Chordata Kingdom: Animalia Domain: Bacteria Domain: Archaea Domain: Eukarya

Order Family Genus Species Panthera pardus (leopard) Felidae Panthera Figure 26.4 Order Family Genus Species Panthera pardus (leopard) Felidae Panthera Taxidea taxus (American badger) Taxidea Carnivora Mustelidae Lutra lutra (European otter) Lutra Figure 26.4 The connection between classification and phylogeny. Canis latrans (coyote) Canidae Canis Canis lupus (gray wolf)

From Two Kingdoms to Three Domains The tree of life suggests that eukaryotes and archaea are more closely related to each other than to bacteria © 2011 Pearson Education, Inc.

Eukarya Bacteria Archaea Figure 26.21 Land plants Dinoflagellates Green algae Forams Ciliates Diatoms Red algae Amoebas Cellular slime molds Euglena Trypanosomes Animals Leishmania Fungi Sulfolobus Green nonsulfur bacteria Thermophiles (Mitochondrion) Figure 26.21 The three domains of life. Spirochetes Halophiles Chlamydia COMMON ANCESTOR OF ALL LIFE Green sulfur bacteria Bacteria Methanobacterium Cyanobacteria Archaea (Plastids, including chloroplasts)