Recombination and Population Structure in Escherichia coli
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چکیده
منابع مشابه
F . Crow and William F . Dove Recombination and Population Structure in Escherichia coli
A major focus of population genetics, and now of molecular evolution, is the study of gene lineages. Population genetic parameters usually apply to small chromosomal regions rather than to the genome as a whole, although genes do not always descend independently of their surroundings. The genome of Escherichia coli strikes me as an unusually favorable theater in which to observe the lineages of...
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AKALYSIS of mixed cultures. sf nutritional mutants has revctlled the presence of new types which strongiy suggest the occurrence of a sexual process in the bacterium; EsciumcJ~ia coti. The mutants consist of strains which differ from their parent wild type, strain I.-l’& in lacking the ahilitv to synthesize growth-factors. . As a result of these dejiciencies they <ill only grow in media supplem...
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rospect, (1) it must be judged to have been technically achievable at an earlier time with methods then available; (2) it must be judged to have been understandable, capable of being expressed in terms comprehensible to working scientists at the time; and (3) its implications must have been capable of having been appreciated. g In an era of Big Science, with goals such as the conquest of cancer...
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extra-intestinal pathogenic escherichia coli (expec) strains are divided into uropathogenic e. coli (upec), strains causing neonatal meningitis and septicaemic e. coli. the most common pathotype of expec is found among patients with urinary tract infection (uti), defined as upec. these bacteria are responsible for >90% of cases of uti and are often found amongst the faecal flora of the same hos...
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The study of inheritance in bacteria has, for the most part, been confined to the investigation. of mutational changes in the course of clonal reproduction. With the exception of experiments on pneumococcus type transformations there have been few studies on the direct hereditary interaction of one bacterial type with another. The conception that bacteria have no sexual mode of reproduction is ...
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ژورنال
عنوان ژورنال: Genetics
سال: 1997
ISSN: 1943-2631
DOI: 10.1093/genetics/146.3.745