Assertion: euglena's chloroplast | /r/HasProperty | acquired through endosymbiose
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text: The overall model is in accord with sequence evidence that the genomes of the nucleus, mitochondrion, and chloroplast derive from different genetic sources in ancestral prokaryotes, and is consistent with the hypothesis that the mitochondrion and chloroplast were acquired through endosymbioses initiated by phagotrophic inclusion of an aerobic bacterium, and a blue-green bacterium, respectively.