Biology 3484A/B Lecture Notes - Lynn Margulis, Phytophthora Infestans, Red Algae
Document Summary
: the endosymbiotic theory of eukaryote evolution, or the serial endosymbiosis theory (set) is the most widely accepted theory. This theory was proposed in a landmark paper by lynn margulis in 1967, called the origin of. Her work was rejected for year, until independent experimental evidence supported her hypothesis. Eukaryotic cells have a nucleus with an organized genome and they contain mitochondria (many), which are the powerhouse of the cell and they have an independent genome. Mitochondrial dna shows substantial similarity to bacterial dna. Chloroplasts have an independent genome with similarities to the cyanobacterial genome. One prokaryotic organism engulfed another and over time evolved into a eukaryotic cell with a mitochondrion. These eukaryotic cells multiplied and diversified (prokaryote + prokaryote = eukaryote). Later in time, one of these eukaryotic cells engulfed a cyanobacterium and over time evolved into a eukaryotic cell with a chloroplast.