rSalvador

rSalvador computes mutation rates from Luria-Delbrück fluctuation assay data and provides analysis that corrects for partial plating, integrates mutants' relative fitness, estimates required sample sizes, and addresses parameter nonidentifiability for bacterial mutation studies.


Key Features:

  • Comprehensive data analysis: Accounts for partial plating effects when analyzing fluctuation assay results to improve accuracy of mutation rate estimates.
  • Incorporation of mutants' relative fitness: Integrates mutants' relative fitness into mutation rate calculations to reflect fitness-dependent effects.
  • Mutation rate comparison methods: Implements methods specifically applicable to fluctuation assay data for valid comparisons of mutation rates.
  • Sample size estimation: Estimates the necessary sample size for fluctuation assay experiments to support experimental design and power considerations.
  • Addressing parameter nonidentifiability: Provides strategies to manage parameter nonidentifiability inherent in fluctuation assay analyses.

Scientific Applications:

  • Bacterial mutation rate estimation: Estimating mutation rates from Luria-Delbrück fluctuation assay data.
  • Mutational dynamics analysis: Investigating mutational dynamics in bacterial populations analyzed by fluctuation assays.
  • Assessing fitness landscapes: Assessing mutants' relative fitness and its impact on observed mutation frequencies.
  • Experimental design for fluctuation assays: Informing sample-size planning and study design for fluctuation assay experiments.

Methodology:

Implements analysis routines that correct for partial plating, integrate mutants' relative fitness into mutation rate estimation, apply fluctuation-assay-specific methods for mutation-rate comparisons, estimate required sample sizes, and apply strategies to address parameter nonidentifiability.

Topics

Details

Tool Type:
library
Operating Systems:
Linux, Mac
Programming Languages:
R
Added:
7/19/2018
Last Updated:
12/10/2018

Operations

Data Inputs & Outputs

Modelling and simulation

Publications

Zheng Q. rSalvador: An R Package for the Fluctuation Experiment. G3 Genes|Genomes|Genetics. 2017;7(12):3849-3856. doi:10.1534/g3.117.300120. PMID:29084818. PMCID:PMC5714482.

Documentation