title: A reassessment of the origin of the polyploid wheats.
abstract: The diploid species that donated the A and D genomes to the polyploid wheats have been recognized for some time. New evidence indicates that Triticum speltoides cannot be the B genome donor to T. turgidum or T. aestivum. T. speltoides is probably homologous to the G genome of T. timopheevii. The donor of the B genome to T. turgidum and T. aestivum is currently unrecognized.
authors.affiliation: Department of Agronomy, University of Missouri-Columbia, Columbia, Missouri 65201.
authors.forename: G
authors.initials: G
authors.lastname: Kimber