Plastids chloroplasts chromoplasts and amyloplasts C Eukaryotic Evolution The

Plastids chloroplasts chromoplasts and amyloplasts c

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Plastids­ chloroplasts, chromoplasts, and amyloplasts C. Eukaryotic Evolution The root of Eukarya is not known Eukaryotic tree is a polytomy Four monophyletic Supergroups 1. Excavates 2. "SAR" Clade 3. Archaeplastida 4. Unikonta Most eukaryotic lineages are unicellular protists But rest are land plants, fungi and animals Protists: Four Supergroups What is a protist? "The very first" Protist Monday, January 30, 2017 11:34 PM This section is read-only.
Arose through endosymbiosis Very diverse Many multicellular Many nutritional strategies A. Excavates Shared ancestral traits Single celled Genetic similarities Some members have feeding groove Derived traits Mitochondria type differs in each subgroup 1. Diplomonads Derived traits Mitosomes= ETC non­functional, no O2 2 equal sized nuclei Ex: Giardia intestinalis Parasitic Major cause of diarrhea throughout the world 2. Parabasalids Derived traits Hydrogenosomes­modified mitochondria Aerobic Releases H2 No plastids Ex: Trichomonas vaginalis Sexually transmitted parasite Causes trichomonas (STD) 3. Euglenozoans Derived traits Normal mitochondria Spiral or crystalline rod inside flagella 2 ex: Kinetoplastids­ free living or parasites Trypanosoma brucei­ (African sleeping sickness) Euglenids­ mixotrophs B. "SAR" Clade S

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