The addition of the chromosomes of Aegilops umbellulata to Triticum aestivum (var. Chinese Spring)

Abstract

Six lines have been isolated in which individual chromosomes of Ae. umbellulata have been added to the normal complement of T. aestivum. The phenotype and cytology of these lines and of the material employed in their production is briefly described. The use of some of these lines in investigations on the evolution of the diploid Aegilops species and in the introduction of useful alien variation into T. aestivum is mentioned.