Title: A primary Trisomic for Chromosome 4 in a Six-Rowed Barley
Abstract
A primary trisomic was isolated in M3 from a population of thermal neutron irradiated 6-rowed cultivated barley K 12. Karyotypic study has revealed that the extrachromosome is chromosome 4. The present trisomic for chromosome 4 is morphologically distinct from the trisomic for the same chromosome in 2-rowed wild and cultivated barley described by Tsuchiya. © 1971, Japan Mendel Society, International Society of Cytology. All rights reserved.