Processes of genome evolution reflected by base frequency differences among Serratia marcescens genes
- 1 January 1990
- journal article
- research article
- Published by Wiley in Molecular Microbiology
- Vol. 4 (1) , 119-122
- https://doi.org/10.1111/j.1365-2958.1990.tb02020.x
Abstract
The G+C content of silent sites in condons varies greatly among Serratia marcescens genes; the value in any one gene seems to reflect a balance between mutation pressure towards high G+C content and natural selection constraining choice among synonymous codons. Interestingly, non-coding sequences have substantially lower G+C content than silent sites thought to be under little selective constraint.Keywords
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