Haloferax

Haloferax
Scientific classification
Domain: Archaea
Kingdom: Euryarchaeota
Phylum: Euryarchaeota
Class: Halobacteria
Order: Halobacteriales
Family: Halobacteriaceae
Genus: Haloferax
Torreblanca et al. 1986
Species
  • H. alexandrinus
  • H. denitrificans
  • H. elongans
  • H. gibbonsii
  • H. larsenii
  • H. lucentense
  • H. mediterranei
  • H. mucosum
  • H. prahovense
  • H. sulfurifontis
  • H. volcanii

In taxonomy, Haloferax is a genus of the Halobacteriaceae[1] or Haloferacaceae.[2]

Genetic exchange

Cells of H. mediterranei and cells of the related species H. volcanii can undergo a process of genetic exchange between two cells which involves cell fusion resulting in a heterodiploid cell (containing two different chromosomes in one cell).[3] Although this genetic exchange ordinarily occurs between two cells of the same species, it can also occur at a lower frequency between an H. mediterranei and an H. volcani cell. These two species have an average nucleotide sequence identity of 86.6%.[3] During this exchange process, a diploid cell is formed that contains the full genetic repertoire of both parental cells, and genetic recombination is facilitated. Subsequently, the cells separate, giving rise to recombinant cells.


See also

References

  1. ↑ List of prokaryotic names with standing in nomenclature
  2. ↑ NCBI
  3. 1 2 Naor A, Lapierre P, Mevarech M, Papke RT, Gophna U (August 2012). "Low species barriers in halophilic archaea and the formation of recombinant hybrids". Curr. Biol. 22 (15): 1444–8. doi:10.1016/j.cub.2012.05.056. PMID 22748314.

Further reading

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