Metabolic and evolutionary patterns in the extremely acidophilic archaeon Ferroplasma acidiphilum Y-T

Golyshina OV, Tran H, Reva ON, Lemak S, Yakunin AF, Goesmann A, Nechitaylo TY, LaCono V, Smedile F, Slesarev A, Rojo D, et al. (2017)
SCIENTIFIC REPORTS 7: 3682.

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Abstract
Ferroplasmaceae represent ubiquitous iron-oxidising extreme acidophiles with a number of unique physiological traits. In a genome-based study of Ferroplasma acidiphilum Y-T, the only species of the genus Ferroplasma with a validly published name, we assessed its central metabolism and genome stability during a long-term cultivation experiment. Consistently with physiology, the genome analysis points to F. acidiphilum Y-T having an obligate peptidolytic oligotrophic lifestyle alongside with anaplerotic carbon assimilation. This narrow trophic specialisation abridges the sugar uptake, although all genes for glycolysis and gluconeogenesis, including bifunctional unidirectional fructose 1,6-bisphosphate aldolase/phosphatase, have been identified. Pyruvate and 2-oxoglutarate dehydrogenases are substituted by 'ancient' CoA-dependent pyruvate and alpha-ketoglutarate ferredoxin oxidoreductases. In the lab culture, after -550 generations, the strain exhibited the mutation rate of >= 1.3 x 10(-8) single nucleotide substitutions per site per generation, which is among the highest values recorded for unicellular organisms. All but one base substitutions were G: C to A: T, their distribution between coding and non-coding regions and synonymous-to-non-synonymous mutation ratios suggest the neutral drift being a prevalent mode in genome evolution in the lab culture. Mutations in nature seem to occur with lower frequencies, as suggested by a remarkable genomic conservation in F. acidiphilum Y-T variants from geographically distant populations.
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Golyshina OV, Tran H, Reva ON, et al. Metabolic and evolutionary patterns in the extremely acidophilic archaeon Ferroplasma acidiphilum Y-T. SCIENTIFIC REPORTS. 2017;7: 3682.
Golyshina, O. V., Tran, H., Reva, O. N., Lemak, S., Yakunin, A. F., Goesmann, A., Nechitaylo, T. Y., et al. (2017). Metabolic and evolutionary patterns in the extremely acidophilic archaeon Ferroplasma acidiphilum Y-T. SCIENTIFIC REPORTS, 7, 3682. doi:10.1038/s41598-017-03904-5
Golyshina, O. V., Tran, H., Reva, O. N., Lemak, S., Yakunin, A. F., Goesmann, A., Nechitaylo, T. Y., LaCono, V., Smedile, F., Slesarev, A., et al. (2017). Metabolic and evolutionary patterns in the extremely acidophilic archaeon Ferroplasma acidiphilum Y-T. SCIENTIFIC REPORTS 7:3682.
Golyshina, O.V., et al., 2017. Metabolic and evolutionary patterns in the extremely acidophilic archaeon Ferroplasma acidiphilum Y-T. SCIENTIFIC REPORTS, 7: 3682.
O.V. Golyshina, et al., “Metabolic and evolutionary patterns in the extremely acidophilic archaeon Ferroplasma acidiphilum Y-T”, SCIENTIFIC REPORTS, vol. 7, 2017, : 3682.
Golyshina, O.V., Tran, H., Reva, O.N., Lemak, S., Yakunin, A.F., Goesmann, A., Nechitaylo, T.Y., LaCono, V., Smedile, F., Slesarev, A., Rojo, D., Barbas, C., Ferrer, M., Yakimov, M.M., Golyshin, P.N.: Metabolic and evolutionary patterns in the extremely acidophilic archaeon Ferroplasma acidiphilum Y-T. SCIENTIFIC REPORTS. 7, : 3682 (2017).
Golyshina, Olga V., Tran, Hai, Reva, Oleg N., Lemak, Sofia, Yakunin, Alexander F., Goesmann, Alexander, Nechitaylo, Taras Y., LaCono, Violetta, Smedile, Francesco, Slesarev, Alexei, Rojo, David, Barbas, Coral, Ferrer, Manuel, Yakimov, Michail M., and Golyshin, Peter N. “Metabolic and evolutionary patterns in the extremely acidophilic archaeon Ferroplasma acidiphilum Y-T”. SCIENTIFIC REPORTS 7 (2017): 3682.
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