Tracking molecular evolution of photosynthesis by characterization of a major photosynthesis gene cluster from
            <i>Heliobacillus mobilis</i>

Xiong, Jin; Inoue, Kazuhito; Bauer, Carl E.

doi:10.1073/pnas.95.25.14851

Cited by 174 publications

(111 citation statements)

References 37 publications

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“…It is generally believed that the evolution of photosynthetic genes was accompanied by their dissemination by way of LGT between different groups of bacteria (12,26,30,31,56). This idea is supported by the apparent presence of nonphotosynthetic representatives in all of these phyla, except for Cyanobacteria; by the fact that the photosynthesis-related proteins are often encoded on a single contiguous chromosomal region (superoperon) (20,57); by several phylogenetic analyses (8,11,58); and by the observation that photosynthetic genes can be transduced by cyanophages (59).…”

Section: Evolution Of Photosynthesis and Lateral Gene Transfermentioning

confidence: 69%

“…† Proteins of H. mobilis, annotated in ref. 20 as PetA, PetD, PetJ, and PetL, are typical components of heterotrophic electron transfer chains, which are only distantly related to the corresponding cyanobacterial and plant proteins. H. mobilis genes analyzed in this work have been deposited in GenBank (accession nos.…”

Section: Common and Unique Protein Families In Cyanobacteriamentioning

confidence: 99%

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The cyanobacterial genome core and the origin of photosynthesis

Mulkidjanian

Koonin

Makarova

et al. 2006

Proc. Natl. Acad. Sci. U.S.A.

289

262

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Comparative analysis of 15 complete cyanobacterial genome sequences, including ''near minimal'' genomes of five strains of Prochlorococcus spp., revealed 1,054 protein families [core cyanobacterial clusters of orthologous groups of proteins (core CyOGs)] encoded in at least 14 of them. The majority of the core CyOGs are involved in central cellular functions that are shared with other bacteria; 50 core CyOGs are specific for cyanobacteria, whereas 84 are exclusively shared by cyanobacteria and plants and͞or other plastid-carrying eukaryotes, such as diatoms or apicomplexans. The latter group includes 35 families of uncharacterized proteins, which could also be involved in photosynthesis. Only a few components of cyanobacterial photosynthetic machinery are represented in the genomes of the anoxygenic phototrophic bacteria Chlorobium tepidum, Rhodopseudomonas palustris, Chloroflexus aurantiacus, or Heliobacillus mobilis. These observations, coupled with recent geological data on the properties of the ancient phototrophs, suggest that photosynthesis originated in the cyanobacterial lineage under the selective pressures of UV light and depletion of electron donors. We propose that the first phototrophs were anaerobic ancestors of cyanobacteria (''procyanobacteria'') that conducted anoxygenic photosynthesis using a photosystem I-like reaction center, somewhat similar to the heterocysts of modern filamentous cyanobacteria. From procyanobacteria, photosynthesis spread to other phyla by way of lateral gene transfer.cyanobacteria ͉ protein families ͉ lateral gene transfer

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Section: Evolution Of Photosynthesis and Lateral Gene Transfermentioning

confidence: 69%

Section: Common and Unique Protein Families In Cyanobacteriamentioning

confidence: 99%

The cyanobacterial genome core and the origin of photosynthesis

Mulkidjanian

Koonin

Makarova

et al. 2006

Proc. Natl. Acad. Sci. U.S.A.

289

262

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“…8) is much simpler mechanistically than earlier ones that invoke fusion of organisms having different reaction-centre types (Blankenship, 1994) or lateral transfers of genes (Xiong et al, 1998(Xiong et al, , 2000. It is also simpler than the idea of a complex ancestral type with two photosystems and differential loss in different lineages (Olson & Pierson, 1987).…”

Section: The Probable Antiquity Of Green Bacteriamentioning

confidence: 99%

The neomuran origin of archaebacteria, the negibacterial root of the universal tree and bacterial megaclassification.

Cavalier‐Smith¹

2002

International Journal of Systematic and Evolutionary Microbiology

418

590

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Prokaryotes constitute a single kingdom, Bacteria, here divided into two new subkingdoms : Negibacteria, with a cell envelope of two distinct genetic membranes, and Unibacteria, comprising the new phyla Archaebacteria and Posibacteria, with only one. Other new bacterial taxa are established in a revised higher-level classification that recognizes only eight phyla and 29 classes. Morphological, palaeontological and molecular data are integrated into a unified picture of large-scale bacterial cell evolution despite occasional lateral gene transfers. Archaebacteria and eukaryotes comprise the clade neomura, with many common characters, notably obligately co-translational secretion of N-linked glycoproteins, signal recognition particle with 7S RNA and translationarrest domain, protein-spliced tRNA introns, eight-subunit chaperonin, prefoldin, core histones, small nucleolar ribonucleoproteins (snoRNPs), exosomes and similar replication, repair, transcription and translation machinery. Eubacteria (posibacteria and negibacteria) are paraphyletic, neomura having arisen from Posibacteria within the new subphylum Actinobacteria (possibly from the new class Arabobacteria, from which eukaryotic cholesterol biosynthesis probably came). Replacement of eubacterial peptidoglycan by glycoproteins and adaptation to thermophily are the keys to neomuran origins. All 19 common neomuran character suites probably arose essentially simultaneously during the radical modification of an actinobacterium. At least 11 were arguably adaptations to thermophily. Most unique archaebacterial characters (prenyl ether lipids ; flagellar shaft of glycoprotein, not flagellin ; DNA-binding protein 10b ; specially modified tRNA ; absence of Hsp90) were subsequent secondary adaptations to hyperthermophily and/or hyperacidity. The insertional origin of protein-spliced tRNA introns and an insertion in proton-pumping ATPase also support the origin of neomura from eubacteria. Molecular co-evolution between histones and DNA-handling proteins, and in novel protein initiation and secretion machineries, caused quantum evolutionary shifts in their properties in stem neomura. Proteasomes probably arose in the immediate common ancestor of neomura and Actinobacteria. Major gene losses (e.g. peptidoglycan synthesis, hsp90, secA) and genomic reduction were central to the origin of archaebacteria. Ancestral archaebacteria were probably heterotrophic, anaerobic, sulphur-dependent hyperthermoacidophiles ; methanogenesis and halophily are secondarily derived. Multiple lateral gene transfers from eubacteria helped secondary archaebacterial adaptations to mesophily and genome re-expansion. The origin from a drastically altered actinobacterium of neomura, and the immediately subsequent simultaneous origins of archaebacteria and eukaryotes, are the most extreme and important cases of T. Cavalier-Smith quantum evolution since cells began. All three strikingly exemplify De Beer's principle of mosaic evolution : the fact that, during major evolutionary transformations, some org...

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“…MC1 that are homologous to known SPS genes provides further evidence that Suc metabolism is present in the ␣-, ␤-, and ␥-subdivisions of this group of organisms (Khmelenina et al, 1999;Khmelenina et al, 2000;Mijts and Patel, 2001). Xiong et al (1998) concluded, from phylogenetic analysis of genes encoding photosystem I and II reaction center proteins, that the oxygenic photosynthetic apparatus of the cyanobacteria evolved from heterologous fusion of ancestral types related to those in the heliobacteria/green sulfur bacteria (photosystem I) and proteobacteria/green nonsulfur bacteria (photosystem II). The implication of these findings, and the apparent absence of Suc-synthesizing enzymes in other groups of Bacteria or the Archaea, is that the origins of Suc metabolism probably lie in the proteobacteria or an ancestral type common to both the (Kandler and Hopf, 1980;Hawker and Smith, 1984), which points to a more likely origin in the endosymbiotic cyanobacteria that are believed to have been the ancestors of chloroplasts (Cavalier-Smith, 2000).…”

Section: Origin and Evolution Of Suc Metabolismmentioning

confidence: 99%

Evolution of Sucrose Synthesis

Lunn

2002

Plant Physiology

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Cyanobacteria and proteobacteria (purple bacteria) are the only prokaryotes known to synthesize sucrose (Suc). Suc-P synthase, Suc-phosphatase (SPP), and Suc synthase activities have previously been detected in several cyanobacteria, and genes coding for Suc-P synthase (sps) and Suc synthase (sus) have been cloned from Synechocystis sp. PCC 6803 and Anabaena (Nostoc) spp., respectively. An open reading frame in the Synechocystis genome encodes a predicted 27-kD polypeptide that shows homology to the maize (Zea mays) SPP. Heterologous expression of this putative spp gene in Escherichia coli, reported here, confirmed that this open reading frame encodes a functional SPP enzyme. The Synechocystis SPP is highly specific for Suc-6 F -P (K m ϭ 7.5 m) and is Mg 2ϩ dependent (K a ϭ 70 m), with a specific activity of 46 mol min Ϫ1 mg Ϫ1 protein. Like the maize SPP, the Synechocystis SPP belongs to the haloacid dehalogenase superfamily of phosphatases/hydrolases. Searches of sequenced microbial genomes revealed homologs of the Synechocystis sps gene in several other cyanobacteria (Nostoc punctiforme, Prochlorococcus marinus strains MED4 and MIT9313, and Synechococcus sp. WH8012), and in three proteobacteria (Acidithiobacillus ferrooxidans, Magnetococcus sp. MC1, and Nitrosomonas europaea). Homologs of the Synechocystis spp gene were found in Magnetococcus sp. MC1 and N. punctiforme, and of the Anabaena sus gene in N. punctiforme and N. europaea. From analysis of these sequences, it is suggested that Suc synthesis originated in the proteobacteria or a common ancestor of the proteobacteria and cyanobacteria.

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Tracking molecular evolution of photosynthesis by characterization of a major photosynthesis gene cluster from Heliobacillus mobilis

Cited by 174 publications

References 37 publications

The cyanobacterial genome core and the origin of photosynthesis

The cyanobacterial genome core and the origin of photosynthesis

The neomuran origin of archaebacteria, the negibacterial root of the universal tree and bacterial megaclassification.

Evolution of Sucrose Synthesis

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