'Phylogeny' presentation slideshows

Chapter 25 Tracing Phylogeny

Chapter 25 Tracing Phylogeny. Phylogeny. Phylon = tribe, geny = genesis or origin The evolutionary history of a species or a group of related species. Phylogeny. Found in fossils and the fossil record. Fossils. Any preserved remnant or impression of a past organism.

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Chaetognaths, Echinoderms, and Hemichordates

Chaetognaths, Echinoderms, and Hemichordates. Chapter 22. Deuterostomes. Deuterostome characteristics: Radial, indeterminate cleavage Formation of the mouth from a second opening Enterocoelous coelom development Chaetognaths are placed outside both protostome & deuterostome groups.

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Sciurid phylogeny and the evolution of African ground squirrels

Sciurid phylogeny and the evolution of African ground squirrels Matthew D. Herron University of Central Florida Department of Biology Seminar outline Part 1: Sciurid phylogeny Higher level evolutionary relationships Relationships within the tribe Marmotini Taxonomy vs. phylogeny

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Equilibria in populations

Equilibria in populations. Population data. Recall that we often study a population in the form of a SNP matrix Rows correspond to individuals (or individual chromosomes), columns correspond to SNPs The matrix is binary (why?)

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EVOLUTION

EVOLUTION. Change in populations over time. 108. Genetics Notebook Check 109. Genetics Unit Test 110. Evolution Coach Notes (Lessons 20 and 21) 111.Types of Evolution 112. Evidence Evolution Occurred 113. Cladogram Lab 114.Biochemical Evolutionary Evidence

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Molecular phylogenies

Molecular phylogenies. DNA sequence changes to: ATTGCT T TTC. Ancestral DNA sequence: ATTGCT A TTC. Mutations can create synapomorphies. Reversal to A at 7th position. DNA sequence changes to: ATTGCT T TTC. Ancestral DNA sequence: ATTGCT A TTC.

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Manganese Oxidizing Bacteria

Manganese Oxidizing Bacteria. Cynthia McClain HMC 2012 July 19, 2012. Mn(II ) Mn(III,IV ) Soluble. Mn-oxide/oxyhydroxide precipitate. Most MnOx in nature formed biotically ! . Niche. Physical and chemical gradients. Manganese Oxidizing Bacteria.

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Plants Part 1: Leaves

Plants Part 1: Leaves. Text ref 12.1-12.2. Background. Basic Needs : Energy/nutrients/water Gas exchange Repro capability Protection (herbivores/disease) ...and they are sessile! (immobile..). Background... cont. Nutrition... carbon dioxide + water ? glucose + oxygen

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Dichotomous Keys:

Dichotomous Keys:. a set of paired statements that describe physical characteristics of different organisms. ?. ?. ?. ?. ?. ?. ?. Dichotomous Key: Name that potato chip!. Practice classifying North Carolina leaves, fish, and norns (aliens!) by using the dichotomous keys in your

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Plant Molecular Systematics (Phylogenetics)

Plant Molecular Systematics (Phylogenetics). Systematics classifies species based on similarity of traits and possible mechanisms of evolution , a change in the gene pool of a population over time.

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Horse hoof Evolution

Horse hoof Evolution. By: Travis Hartneck David Stacy. Topic: The evolution of the horses hooves from multiple toes to a single hoof . Questions Asked: Why did the leg and body structure of horses evolve so drastically over a 55 million year stretch?

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Modern Evolutionary Classification 18-2

Modern Evolutionary Classification 18-2. Evolutionary Classification The strategy of grouping organisms together based on their evolutionary descent or Phylogeny.

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PHYLOGENY

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Classification

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Classification and phylogeny

Classification and phylogeny. By:Changting Luo. What is Classification. Classification in biology is arranging living organisms into groups. Reasons for classification.

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Example from Dr. Mark Fishbein

Example from Dr. Mark Fishbein. Which of these critters are most closely related?. alligator. gila monster. purple gallinule. ?. gopher tortoise. kingsnake. Phylogeny. Branching history of evolutionary lineages New branches arise via speciation

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Phylogeny of some lophotrochozoan worms

Phylogeny of some lophotrochozoan worms. Annelida. Platyhelminthes. Sibloglinidae. Polychaeta. Sipuncula. Nemertea. DOM or chemosynthetic bacteria. : nutrition source. non-linear (U-shaped) introvert urn cells. gut form: feeding structure: coelomic scavengers:. parapodia

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MAM Groenen et al. Nature 491 , 393-398 (2012) doi:10.1038/nature11622

Phylogeny of the six mammals used in the dN/dS analysis. MAM Groenen et al. Nature 491 , 393-398 (2012) doi:10.1038/nature11622.

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