Haloferax

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Haloferax
Haloferax volcanii

Haloferax volcanii

Systematics
Domain : Archaea (Archaea)
Department : Euryarchaeota
Class : Halobacteria
Order : Haloferacales
Family : Haloferacaceae
Genre : Haloferax
Scientific name
Haloferax
Torreblanca et al. 1986

Haloferax is a genus of the Haloferacaceae family (see also LPSN and NCBI); earlier the genus was placed in the family Halobacteriaceae .

Genetic exchange

Cells from Haloferax mediterranei and cells of the related species Haloferax volcanii can undergo genetic exchange between two cells.

Although this genetic exchange normally takes place between two cells of the same species, it can also occur at a lower frequency between an H. mediterranei and an H. volcanii cell. The two species have an average nucleotide sequence match of 86.6%. During this exchange process, two cells fuse to form a heterodiploid cell, which contains the two different chromosomes and thus the entire genetic repertoire of the two parental cells. This promotes genetic recombination. The cells then separate, which can result in recombinant cells.

See also

further reading

  • A. Oren, A. Ventosa: International Committee on Systematic Bacteriology Subcommittee on the Taxonomy of Halobacteriaceae. Minutes of the meetings, August 16, 1999, Sydney, Australia. In: International journal of systematic and evolutionary microbiology. Volume 50 Pt 3, May 2000, pp. 1405-1407, doi : 10.1099 / 00207713-50-3-1405 , PMID 10843089 .
  • Marina Torreblanca, F. Rodriguez-Valera, Guadalupe Juez, Antonio Ventosa, Masahiro Kamekura, Morris Kates: Classification of Non-alkaliphilic Halobacteria Based on Numerical Taxonomy and Polar Lipid Composition, and Description of Haloarcula gen. Nov. and Haloferax gen. nov. In: Systematic and Applied Microbiology. 8, 1986, p. 89, doi : 10.1016 / s0723-2020 (86) 80155-2 .

Web links

Commons : Haloferax  - collection of images, videos and audio files

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Individual evidence

  1. ↑ List of prokaryotic names LPSN , List of prokaryotic names with standing in nomenclature
  2. ↑ Taxonomy browser of the NCBI, ID 2251 , [1] , National Center for Biotechnology Information
  3. ↑ Radhey S. Gupta, Sohail Naushad, Sheridan Baker: Phylogenomic analyzes and molecular signatures for the class Halobacteria and its two major clades: a proposal for division of the class Halobacteria into an emended order Halobacteriales and two new orders, Haloferacales ord. nov. and Natrialbales ord. nov., containing the novel families Haloferacaceae fam. nov. and Natrialbaceae fam. nov . In: International Journal of Systematic and Evolutionary Microbiology . tape 65 , Pt 3, March 2015, ISSN  1466-5034 , p. 1050-1069 , doi : 10.1099 / ijs.0.070136-0 , PMID 25428416 .
  4. ↑ a b A. Naor, P. Lapierre, M. Mevarech, RT Papke, U. Gophna: Low species barriers in halophilic archaea and the formation of recombinant hybrids. In: Current biology: CB. Volume 22, Number 15, August 2012, pp. 1444-1448, doi : 10.1016 / j.cub.2012.05.056 , PMID 22748314 .