title: Family-based association mapping in crop species.
abstract: Identification of allelic variants associated with complex traits provides molecular genetic information associated with variability upon which both artificial and natural selections are based. Family-based association mapping (FBAM) takes advantage of linkage disequilibrium among segregating progeny within crosses and among parents to provide greater power than association mapping and greater resolution than linkage mapping. Herein, we discuss the potential adaption of human family-based association tests and quantitative transmission disequilibrium tests for use in crop species. The rapid technological advancement of next generation sequencing will enable sequencing of all parents in a planned crossing design, with subsequent imputation of genotypes for all segregating progeny. These technical advancements are easily adapted to mating designs routinely used by plant breeders. Thus, FBAM has the potential to be widely adopted for discovering alleles, common and rare, underlying complex traits in crop species.
authors.affiliation: Syngenta Biotechnology Inc, 2369 330th Street, Slater, IA 50244, USA. baohong.guo@syngenta.com
authors.forename: Baohong
authors.initials: B
authors.lastname: Guo
authors.forename: Daolong
authors.initials: D
authors.lastname: Wang
authors.forename: Zhigang
authors.initials: Z
authors.lastname: Guo
authors.forename: William D
authors.initials: WD
authors.lastname: Beavis
mesh_terms: D000383:Agriculture / Q000379:methods*; D001947:Breeding / Q000379:methods*; D018556:Crops, Agricultural / Q000235:genetics*; D003433:Crosses, Genetic; D056726:Genetic Association Studies / Q000379:methods*; D005828:Genetics, Population; D006801:Humans; D015810:Linkage Disequilibrium / Q000235:genetics*; D013045:Species Specificity