Paulinella , a model for understanding plastid primary endosymbiosis
نویسندگان
چکیده
منابع مشابه
A phylogenomic approach for studying plastid endosymbiosis.
Gene transfer is a major contributing factor to functional innovation in genomes. Endosymbiotic gene transfer (EGT) is a specific instance of lateral gene transfer (LGT) in which genetic materials are acquired by the host genome from an endosymbiont that has been engulfed and retained in the cytoplasm. Here we present a comprehensive approach for detecting gene transfer within a phylogenetic fr...
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One of the major steps in the evolution of life was the origin of photosynthesis in nucleated cells underpinning the evolution of plants. It is well accepted that this evolutionary process was initiated when a photosynthetic bacterium (a cyanobacterium) was taken up by a colorless host cell, probably more than a billion years ago, and transformed into a photosynthetic organelle (a plastid) duri...
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Plastids--the light-harvesting machines of plant and algal cells--evolved from cyanobacteria inside a eukaryotic host more than a billion years ago. New data reveal that a mysterious unicellular alga acquired its photosynthetic apparatus much more recently than other eukaryotes, affording a second look at the primary endosymbiotic origin of plastids.
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Two cases of primary plastid endosymbiosis are known. The first occurred ca. 1.6 billion years ago and putatively gave rise to the canonical plastid in algae and plants. The second is restricted to a genus of rhizarian amoebae that includes Paulinella chromatophora. Photosynthetic Paulinella species gained their plastid from an α-cyanobacterial source and are sister to plastid-lacking phagotrop...
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first individual to scan was the first to cross the small road in 100% of cases, compared to 70% for the large road. On the large road the second-ranking male sometimes continued scanning while the elderly third male and alpha female took up the lead on the large-road progressions. The alpha male increased his rearward presence on the large road, whereas the alpha female showed a dramatic reduc...
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ژورنال
عنوان ژورنال: Journal of Phycology
سال: 2020
ISSN: 0022-3646,1529-8817
DOI: 10.1111/jpy.13003