Temporal & genomic additive-variance analysis

Jun 1, 2021 · 1 min read

This workflow reproduces Lara et al. (2021, Heredity) “Temporal and genomic analysis of additive genetic variance in breeding programmes.” It simulates a multi-stage wheat breeding programme, partitions additive variance over time, and generates the figures/tables published in the paper.

Repository layout

  • 10simulations/: optimised scripts for running ten repetitions of the analysis.
  • Result_paper/: simulation + analysis scripts used in the manuscript, including plotting and table outputs (requires AlphaSimR v0.11.0).
  • Sensitivity_Genetic_Architecture/: evaluates the framework under different genetic architectures (varying QTL counts, genotype-by-year interactions; uses AlphaSimR v1.0.1).

Highlights

  • Tracks additive variance across pipeline stages and through time, leveraging AlphaSimR outputs and custom partitioning scripts.
  • Provides ready-to-run scenarios for assessing breeding programme design choices.
  • Documents software requirements (AlphaSimR versions, R dependencies) for reproducibility.

Clone the repo, follow the README instructions for AlphaSimR setup, and execute the scripts in each folder to replicate the analyses from Lara et al. (2021).