An α-amylase gene from Aegilops ventricosa transferred to bread wheat together with a factor for eyespot resistance

• Published in: Heredity 1984-06, Vol.52 (3), p.431-435
• Main Authors: Gale, M D, Scott, P R, Law, C N, Ainsworth, C C, Hollins, T W, Worland, A J
• Format: Article
• Language: English
• Subjects: Agronomy. Soil science and plant productions; Biological and medical sciences; Biomedical and Life Sciences; Biomedicine; Classical genetics, quantitative genetics, hybrids; Cytogenetics; Ecology; Evolutionary Biology; Fundamental and applied biological sciences. Psychology; Generalities; Genetics and breeding of economic plants; Genetics of eukaryotes. Biological and molecular evolution; Human Genetics; original-article; Pest resistance; Plant Genetics and Genomics; Varietal selection. Specialized plant breeding, plant breeding aims; Vegetals
• ISSN: 0018-067X; 1365-2540
• DOI: 10.1038/hdy.1984.51

Summary VPM 1, a bread wheat with eyespot resistance derived from Aegilops ventricosa was shown to have a characteristic α-amylase allele on chromosome 7D, α-Amy -D2b also derived from Ae. ventricosa . Chromosome substitution lines confirmed that the eyespot resistance of VPM 1 was also determined by chromosome 7D. Among F 3 families from a cross between VPM 1 and a line lacking this eyespot resistance and the α-amylase marker allele, the two characters segregated independently. This finding reduces the value of the allele as a marker for eyespot resistance, but suggests that VPM 1 possesses a large segment of chromosome from the D genome of Ae. ventricosa.