Phylogenetic trees

Objectives

Conservation Genetics

Molecular Tools

Conservation Genetic Studies

Intraspecific Studies - Plants

Phylogenetics - Plants

Phylogenetics - Fungi: Agaricus

Phylogenetics - Animals

Phylogenetic Trees

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Phylogenetic trees are branching diagrams depicting the evolutionary relationships of organisms. A phylogeny can be compared and ranked with alternative hypotheses of relationships. Data for phylogenetic analysis should reflect genomic information and differences due to environmental factors do not provide useful phylogenetic information.

1. Pseudopanax
2. Stilbocarpa
3. Brassicaceae
4. Agaricus
5. Wolf Spiders

1. Pseudopanax study. Strict consensus of 2 equally parsimonious trees, each 433 steps long, with consistency index (CI) = 0.537 and rescaled consistency index (RC) = 0.465. Bootstrap values from 100 replicate parsimony analyses are shown above each node (groups with relative frequency <5% not shown).

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2. Stilbocarpa study. Strict consensus of 3 equally parsimonious trees from analysis of nuclear ribosomal DNA sequence data. Results of bootstrap analysis with 100 replications are given above the branches. Placement in the classifications of Drude (1898) and Harms (1898) are given at right. Notice the close relatives of the Stilbocarpa include diminutive apiaceous species.

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3. Brassicaceae study. Strict consensus of 13 equally parsimonious trees, each tree is 698 steps long, with consistency index (CI) = 0.619 and rescaled consistency index (RC) = 0.481. Species endemic to New Zealand are highlighted and traditional classification is given (Hooker 1855, 1864; Cheeseman 1925; Schulz 1929; Garnock-Jones & Johnson 1987; Garnock-Jones 1991).

4.  Agaricusstudy. Phylogram of the single most parsimonious tree generated using PAUP. Tree length was 638 steps with a consistency index (CI) 0.64 and rescaled consistency index (RC) 0.41. Branch lengths are proportional to apomorphies. Results of bootstrap analysis with 100 replications are given above the branches. Thin branches are those that collapse in trees one step longer. The classification of Agaricus species by Heinemann (1978) is provided. Replicates of species included; Agaricus bisporus^a (AFO59218), A. bisporus^b (AFO59227), A. campestris^c (AFO59221), A. campestris^d(U85307, U85273).

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5. Wolf Spider phylogeny based on parsimony analysis of 12S sequence data. Bootstrap results shown below branches and majority rule consensus results above branches.