12_Rizzo_Microbial_Eukeryotes_Outline

12_Rizzo_Microbial_Eukeryotes_Outline - BIS2C W2011 24...

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BIS2C W2011 24 January 2011 Lecture 10 & 11 – Microbial Eukaryotes Review of Eukaryotes characteristics Intro to life cycles Alternation of generations Microbial eukaryotes- phylogeny Everything other than plants, animals and fungi referred to as protists or microbial eukaryotes Paraphyletic group Phylogeny of major groups based mostly on molecular data Non-molecular data more useful for eukaryotic phylogeny than with prokaryotes Major eukaryotic groups Lots of ambiguities in resolving early events in evolution of eukaryotes Many aspects of diversity in eukaryotic microbes: o Morphology (unicellular, multicellular) o Locomotion (flagella, cilia, pseudopods) o Metabolism (autotrophs, heterotrophs) o Symbioses (endosymbioses, parasites) o Reproduction (sexual, asexual) o Importance to humans (pathogens, landscapes) Alveolates synapomorphy that distinguishes this clade is presence of alveoli or sacs beneath surface of the plasma membrane.
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