Analytical Approaches and Population Types for Finding and Utilizing QTL in Complex Plant Populations

• DOI: 10.2135/cropsci2008.07.0420
• Publication Date: 2009-03-24T00:49:09Z
• Authors: C. H. Sneller; D. E. Mather; S. Crepieux
• Keywords: Linkage (software); Genetic Association; Association mapping

In the past decade plant geneticists began using complex populations to identify QTL by association analysis, and practice is becoming commonplace. Plant present unique challenges for analyses. vary in complexity structure analyses generally derived from human genetics have been applied them a broad fashion. We review analytical techniques their application different populations. Analyses were classified as either family‐based (FBAA) or population‐based (PBAA). Over time, generalized accommodate variety of populations, are complementary. The PBAA suited with individuals that share little ancestry. Use these types has dominated success, though unlikely detect some important highly structured Both FBAA related individuals. use breeding population warrants special attention due features such large size, availability phenotypic data, immediate relevance marker‐assisted selection, ease validation, computational simplicity tests require linkage significance. Specific recommendations made well suggestions future directions research.