Ecological separation and genetic isolation of Neisseria gonorrhoeae and Neisseria meningitidis

Current Biology : CB
J A VázquezB G Spratt

Abstract

Classifying bacteria into species is problematic. Most microbiologists consider species to be groups of isolates that share some arbitrary degree of relatedness of biochemical or molecular (such as DNA sequence) features and that, ideally, are clearly delineated from all other groups of isolates. The main problem in applying to bacteria a biological concept of species based on the ability or inability of their genes to recombine, is that recombination appears to be rare in bacteria in nature, as indicated by the strong linkage disequilibrium between alleles found in most bacterial populations. However, there are some naturally transformable bacteria in which assortative recombination appears to be so frequent that alleles are in, or close to, linkage equilibrium. For these recombining populations a biological concept of species might be applicable. Populations of Neisseria gonorrhoeae and Neisseria meningitidis from Spain were analysed by multilocus enzyme electrophoresis. The data indicate that assortative recombination occurs frequently within populations, but not between populations. Similarly, the sequences of two house-keeping genes show no evidence of intragenic recombination between N. gonorrhoeae and N. meningitidis. N....Continue Reading

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Citations

Oct 26, 2006·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·William P HanageBrian G Spratt
Oct 26, 2006·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Daniel FalushMark Achtman
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Nov 17, 2011·APMIS : Acta Pathologica, Microbiologica, Et Immunologica Scandinavica·Vessela Ouzounova-RaykovaIvan Mitov
Jun 10, 2011·PloS One·Anna M StenkovaAlexander V Rakin
Oct 27, 2006·The Journal of Molecular Diagnostics : JMD·Stig Ove HjelmevollVegard Skogen
May 26, 2009·Vaccine·Dominique A Caugant, Martin C J Maiden
Jun 8, 2018·Annals of the New York Academy of Sciences·Tatum D Mortimer, Yonatan H Grad
Jun 14, 2013·MBio·Alessandro MuzziClaudio Donati
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Mar 9, 2005·BMC Biology·William P HanageBrian G Spratt
Oct 28, 2021·Microbial Genomics·Christopher A MullallyCharlene M Kahler

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