PPT-Phylogeny The Tree of Life

Phylogenetics Phylogenetic trees illustrate the evolutionary relationships among groups of organisms or among a family of related nucleic acid or protein sequences Each branch represents a new species which inherits many primitive traits from the ancestor but also has a new derived trait which appear for the 1. Phylogenies. The process of evolution produces a pattern of relationships between species. . As . lineages evolve and split and modifications are inherited, their evolutionary paths diverge. . This . - based on whole genome data. Johanne Ahrenfeldt . Research Assistant. Overview. What is Phylogeny and what can it be used for. S. ingle . N. ucleotide . P. olymorphism (SNP) methods. - . snpTree. . Phylogeny. The evolutionary history of a species or group of species. . Convergent Evolution. A process in which species from different evolutionary branches may come to resemble each other if they live in similar environments and natural selection favored similar adaptions.. 26.1. Phylogeny. Evolutionary history of a species or a group of related species. Made by using evidence from systematics. Focuses on classifying organisms & relationships. Uses fossils, morphology, genes, & molecular evidence. Which of the following taxonomic categories includes the fewest number of species?. Animalia. Panthera. Felidae. Carnivora. Mammalia. Which of the following taxonomic categories includes the fewest number of species?. Investigating the Tree of Life. Legless lizards have evolved independently in several different groups. Figure 26.1. Phylogeny. is the evolutionary history of a species or group of related species. For example, a phylogeny shows that legless lizards and snakes evolved from different lineages of legged lizards. http://thumbnails.visually.netdna-cdn.com/the-great-tree-of-life_505ba0c07cda2.gif. Figure 26.1 Some major episodes in the history of life. Figure 26.15 Whittaker’s five-kingdom system. Figure 26.16 Our changing view of biological diversity. Tandy Warnow. The University of Illinois at Urbana-Champaign. Orangutan. Gorilla. Chimpanzee. Human. From the Tree of the Life Website,. University of Arizona. Phylogeny. (evolutionary tree). DNA Sequence Evolution. The first Darwinian principle told that every phylogenetic tree has one common ancestor. .. Phylogen. e. tic analysis is the study of taxonomic relationships among lineages. .. Willi Hennig . (1913-1976). Johanne Ahrenfeldt . PhD Student. Overview. What is Phylogeny? . How has it been used in the past?. Advantages of WGS based phylogeny. - Vibrio . cholerae. . case. BREAK. How are we using it?. CSI phylogeny & . Helgeneusa. Costa . 1. , Vitor Ramos . 1. , . Jose. A. Pereira . 1. , Paula Baptista . 1,*. 1. . Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Sta. Apolónia, 5300-253 Bragança, Portugal. Dr. Habibur Rahman. Associate Professor. J. N. College, Boko. What Is Phylogeny?. Phylogeny is the study of relationships among different groups of organisms and their evolutionary development. Phylogeny attempts to trace the evolutionary history of all life on the planet. It is based on the phylogenetic hypothesis that all living organisms share a common ancestry. The relationships among organisms are depicted in what is known as a phylogenetic tree. Relationships are determined by shared characteristics, as indicated through the comparison of genetic and anatomical similarities.. Jasmin . sutkovic. What are those?. Phylogenetic trees . represent . the evolutionary relationships among a set of organisms or groups of . organisms. These organisms are c. alled. . taxa (singular: taxon) that are believed to have a common ancestor. in . 1801. Jean-Baptiste Lamarck . sketchy . diagram for animals in . 1809.. Vestiges of the Natural History of Creation. , anonymously published by Robert Chambers in 1844, had an even sketchier one, where fish, reptiles, and birds are represented by branches from a path leading to .