» Articles » PMID: 25750180

Asymmetric Context-Dependent Mutation Patterns Revealed Through Mutation-Accumulation Experiments

Overview
Journal Mol Biol Evol
Specialty Biology
Date 2015 Mar 10
PMID 25750180
Citations 83
Authors
Affiliations
Soon will be listed here.
Abstract

Despite the general assumption that site-specific mutation rates are independent of the local sequence context, a growing body of evidence suggests otherwise. To further examine context-dependent patterns of mutation, we amassed 5,645 spontaneous mutations in wild- type (WT) and mismatch-repair deficient (MMR(-)) mutation-accumulation (MA) lines of the gram-positive model organism Bacillus subtilis. We then analyzed>7,500 spontaneous base-substitution mutations across B. subtilis, Escherichia coli, and Mesoplasma florum WT and MMR(-) MA lines, finding a context-dependent mutation pattern that is asymmetric around the origin of replication. Different neighboring nucleotides can alter site-specific mutation rates by as much as 75-fold, with sites neighboring G:C base pairs or dimers involving alternating pyrimidine-purine and purine-pyrimidine nucleotides having significantly elevated mutation rates. The influence of context-dependent mutation on genome architecture is strongest in M. florum, consistent with the reduced efficiency of selection in organisms with low effective population size. If not properly accounted for, the disparities arising from patterns of context-dependent mutation can significantly influence interpretations of positive and purifying selection.

Citing Articles

The mutational landscape of Bacillus subtilis conditional hypermutators shows how proofreading skews DNA polymerase error rates.

Tanneur I, Dervyn E, Guerin C, Kon Kam King G, Jules M, Nicolas P Nucleic Acids Res. 2025; 53(5).

PMID: 40057377 PMC: 11890065. DOI: 10.1093/nar/gkaf147.


Harnessing microbial heterogeneity for improved biosynthesis fueled by synthetic biology.

Cao Y, Li J, Liu L, Du G, Liu Y Synth Syst Biotechnol. 2024; 10(1):281-293.

PMID: 39686977 PMC: 11646789. DOI: 10.1016/j.synbio.2024.11.004.


The Effect of the Presence and Absence of DNA Repair Genes on the Rate and Pattern of Mutation in Bacteria.

Kalogiannis G, Eyre-Walker A Genome Biol Evol. 2024; 16(10).

PMID: 39376054 PMC: 11493085. DOI: 10.1093/gbe/evae216.


Spontaneous mutations and mutational responses to penicillin treatment in the bacterial pathogen D39.

Jiang W, Lin T, Pan J, Rivera C, Tincher C, Wang Y Mar Life Sci Technol. 2024; 6(2):198-211.

PMID: 38827133 PMC: 11136922. DOI: 10.1007/s42995-024-00220-6.


Clinical, Neuroimaging, and Metabolic Footprint of the Neurodevelopmental Disorder Caused by Monoallelic Variants.

Wortmann S, Feichtinger R, Abela L, van Gemert L, Aubart M, Dufeu-Berat C Neurol Genet. 2024; 10(2):e200146.

PMID: 38617198 PMC: 11010246. DOI: 10.1212/NXG.0000000000200146.


References
1.
KOCH R . The influence of neighboring base pairs upon base-pair substitution mutation rates. Proc Natl Acad Sci U S A. 1971; 68(4):773-6. PMC: 389040. DOI: 10.1073/pnas.68.4.773. View

2.
Kibota T, Lynch M . Estimate of the genomic mutation rate deleterious to overall fitness in E. coli. Nature. 1996; 381(6584):694-6. DOI: 10.1038/381694a0. View

3.
Sung W, Tucker A, Doak T, Choi E, Thomas W, Lynch M . Extraordinary genome stability in the ciliate Paramecium tetraurelia. Proc Natl Acad Sci U S A. 2012; 109(47):19339-44. PMC: 3511141. DOI: 10.1073/pnas.1210663109. View

4.
McLean M, Wolfe K, Devine K . Base composition skews, replication orientation, and gene orientation in 12 prokaryote genomes. J Mol Evol. 1998; 47(6):691-6. DOI: 10.1007/pl00006428. View

5.
Powdel B, Borah M, Ray S . Strand-specific mutational bias influences codon usage of weakly expressed genes in Escherichia coli. Genes Cells. 2010; 15(7):773-82. DOI: 10.1111/j.1365-2443.2010.01417.x. View