Sensitivity analysis script for: Why so many polyploids?

While polyploids are common in nature, existing models suggest that polyploid establishment should be difficult and rare. We explore this apparent paradox by focusing on the role of unreduced gametes, as their union is the main route for formation of neopolyploids. Production of such gametes is affected by genetic and environmental factors, resulting in variation in the formation rate of unreduced gametes (u). Once formed, neopolyploids face minority cytotype exclusion (MCE) due to a lack of viable mating opportunities. More than a dozen theoretical models have explored factors that could permit neopolyploids to overcome minority cytotype exclusion and become established. Until now, however, none have explored variability in u and its consequences for the rate of polyploid establishment. Here, we determine the distribution that best fits available empirical data on u. We perform a global sensitivity analysis exploring the consequences of using empirical distributions of u to investigate..., , , # Sensitivity Analysis Script from Why so many polyploids?

## Description of the data and file structure

There are two files included for the global sensitivity analysis of a model for overcoming minority cytotype exclusion, through including environmental stochasticity in the rate of unreduced gametes.

1. Sobol_MCE.R
2. UG_data.csv

The input file (FinalUGdataset.csv) for the Sobol_MCE.R analysis script can be found at osf.io/y784s, where it has been published by the original author.

From the input file the CorX column was used for the corrected measurement of unreduced gametes per sample. The analysis script puts out a table of the Sobol indices for the model parameterized from the original data.

### **UG\_data.xlsx**

A workbook that has three tabs; UG_data, Species and Location.

#### UG\_data

* Sample = a string of characters identifying each individual sample. The values come from Pop and then an individual sample.
* Species = the species epithet for the sample. See ...