Clonal spread of serogroup A meningococci: a paradigm for the analysis of microevolution in bacteria
作者:
Mark Achtman,
期刊:
Molecular Microbiology
(WILEY Available online 1994)
卷期:
Volume 11,
issue 1
页码: 15-22
ISSN:0950-382X
年代: 1994
DOI:10.1111/j.1365-2958.1994.tb00285.x
出版商: Blackwell Publishing Ltd
数据来源: WILEY
摘要:
SummaryExtensive epidemiological analyses of epidemics of meningococcal meningitis have resulted in large, well‐defined strain collections which represent the local diversity and global spread of serogroup A bacteria. Several genes for cell surface proteins are conserved during spread, with a few exceptions: analysis of these exceptions has revealed some of the phenomena which can lead to microevolution. Micro‐evolution is so rapid with serogroup A meningococcal that several independent recombination events have been documented within the last few decades. In a few cases, the recombinant bacteria have become established by clonal replacement plus epidemic spread. Comparison with other bacteria indicates that serogroup A meningococcal provide a number of advantages for analysis of microevolut
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