TASSEL - Trait Analysis by aSSociation, Evolution and Linkage
TASSEL is a software package used to evaluate traits associations, evolutionary
patterns, and linkage disequilibrium. Strengths of this software include:
1. The opportunity for a number of new and powerful statistical approaches to association mapping such as a General Linear Model (GLM) and Mixed Linear Model (MLM). MLM is an implementation of the technique which our recently published Nature Genetics paper - Unified Mixed-Model Method for Association Mapping - which reduces Type I error in association mapping with complex pedigrees, families, founding effects and population structure.
2. An ability to handle a wide range of indels (insertion & deletions). Most software ignore this type of polymorphism; however, in some species (like maize), this is the most common type of polymorphism.
Read more at:
Bradbury PJ, Zhang Z, Kroon DE, Casstevens TM, Ramdoss Y, Buckler ES. (2007) TASSEL: Software for association mapping of complex traits in diverse samples. Bioinformatics 23:2633-2635.
TASSEL Version 5.0 (Getting Started!)
(Build: May 7, 2020, Requires: Java 1.8)
TASSEL Version 5.0 Standalone
(GBS Pipeline V2 - Preferred Version)
New Getting Started with rtassel
Archived Versions of TASSEL
TASSEL Pipeline Documentation
TASSEL development has been generously supported by the USDA-ARS and the NSF, as well as free or reduced cost tools including:
We recommend first searching the archives and posting questions on the discussion group
Tassel User Group (firstname.lastname@example.org)
Terry Casstevens (email@example.com)
Analysis Tools / MLM / GLM
Peter Bradbury (firstname.lastname@example.org)
Overall Project Lead
Ed Buckler (email@example.com)