MegaLMM

MegaLMM implements a linear mixed-model framework for genomic prediction that jointly models thousands of phenotypic traits to improve genetic value estimation.


Key Features:

  • Scalability: Manages and analyzes thousands of traits simultaneously, overcoming computational limits of traditional multivariate linear mixed effect models.
  • Enhanced Prediction Accuracy: Leverages extensive phenotype datasets to improve accuracy of genetic value predictions, demonstrated on plant datasets.
  • Robust Statistical Framework: Employs a statistical framework that addresses limitations of traditional multivariate linear mixed effect models for reliable multi-trait genomic prediction.

Scientific Applications:

  • Plant Breeding: Improves selection and genetic improvement strategies in plant breeding by incorporating large-scale phenotype data.
  • Animal Genetics: Enhances genomic predictions for livestock and other animal species to inform breeding decisions and trait management.
  • Human Genetics: Enables simultaneous analysis of numerous traits in human genetics to study complex genetic interactions and disease associations.

Methodology:

Employs linear mixed models tailored for high-dimensional data and integrates phenotype datasets with genomic information to jointly model relationships among multiple traits.

Topics

Details

License:
GPL-3.0
Tool Type:
library
Programming Languages:
R
Added:
1/18/2021
Last Updated:
2/20/2021

Operations

Publications

Runcie DE, Qu J, Cheng H, Crawford L. MegaLMM: Mega-scale linear mixed models for genomic predictions with thousands of traits. Unknown Journal. 2020. doi:10.1101/2020.05.26.116814.