A Tertiary Trisomic in Barley (Hordeum vulgare L.)

Abstract

Tertiary trisomics which occur in the selfed progeny of interchange heterozygotes, have gained considerable importance in genetics and breeding of barley. Ramage and Tuleen (1964) proposed the use of ‘Balanced Tertiary Trisomics’ (BTT) for maintaining lines of lethal and sterile genes. The concept of ‘Hybrid Barley’ production through the use of BTT was given by Ramage (1963, 1965) and a hybrid barley variety was released in U.S.A. (Ramage and Wiebe 1969). The present paper reports a tertiary trisomic which was isolated from the progeny of a gamma-ray induced translocation T 2-6 in barley. © 1977, Japan Mendel Society, International Society of Cytology. All rights reserved.