Haloferax

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

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

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.

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See also

References
  1. List of prokaryotic names with standing in nomenclature
  2. NCBI
  3. 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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