Genetic analysis of resistance to Fusarium head blight caused by Fusarium graminearum in Chinese wheat cultivar Sumai 3 and the Japanese cultivar Saikai 165

• Published in: Euphytica Vol. 113; no. 2; pp. 87 - 99
• Main Authors: Ban, T, Suenaga, K
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer 01.01.2000; Springer Nature B.V
• Subjects: Agronomy. Soil science and plant productions; Biological and medical sciences; Blight; Crop diseases; Cultivars; Disease resistance; Fundamental and applied biological sciences. Psychology; fungal diseases of plants; Fusarium; Fusarium graminearum; Fusarium head blight; gene interaction; Genes; Genetic analysis; Genetic engineering; genetic recombination; genetic resistance; genetic techniques and protocols; Genetics and breeding of economic plants; Gibberella zeae; haploidy; inbred lines; Inbreeding; linkage (genetics); Pest resistance; Plant pathogens; Recombination; segregation; Triticum; Triticum aestivum; Varietal selection. Specialized plant breeding, plant breeding aims; Wheat; China; Japan; Allelism; Monocotyledones; Recombination; Plant pathogen; Chromosomic number; Genetic determinism; Cereal crop; Fungi; Gene; Gramineae; Angiospermae; Gene additivity; Fungi Imperfecti; Thallophyta; Linkage; Fusarium graminearum; Genotype; Fungus resistance; Sensitivity resistance; Genetic improvement; Spermatophyta; Inbred; Triticum aestivum; Cultivar; Doubled haploid
• ISSN: 0014-2336; 1573-5060
• DOI: 10.1023/a:1003951509797

The genetic constitution of resistance to Fusarium head blight (FHB, scab) caused by Fusarium graminearum in the Chinese wheat cultivar Sumai 3 and the Japanese cultivar Saikai 165 was investigated using doubled haploid lines (DHLs) and recombinant inbred lines (RILs). Frequency distributions of DHLs derived from two F1 crosses, Sumai 3 (very resistant to resistant; VR-R) / Gamenya (very susceptible; VS) and Sumai 3 / Emblem (VS), fitted well to 1: 2: 1 (resistant: moderately resistant: susceptible) ratios for reaction to FHB in the field. It is suggested that the resistance of Sumai 3 is controlled by two major genes with additive effects. One of the resistance genes may be linked in repulsion to the dominant suppressor B1 for awnedness with recombination values 15.1 ± 3.3% in Sumai 3 /Gamenya and 21.4 ± 4.3% in Sumai 3 / Emblem. Saikai 165 is a Japanese resistant line derived from an F1 Sumai 3 / Asakaze-komugi (moderately resistant; MR). The data for RILs derived from the cross Emblem / Saikai 165, indicates that three resistance genes control the resistance of Saikai 165.