Substitutions and Deletions of Genes Related to Grain Hardness in Wheat and Their Effect on Grain Texture

• Published in: Crop science Vol. 42; no. 6; pp. 1812 - 1817
• Main Authors: Tranquilli, G., Heaton, J., Chicaiza, O., Dubcovsky, J.
• Format: Journal Article
• Language: English
• Published: Madison Crop Science Society of America 01.11.2002; American Society of Agronomy
• Subjects: Agronomy. Soil science and plant productions; Biological and medical sciences; Chromosomes; Fundamental and applied biological sciences. Psychology; Genes; Genetics; Genetics and breeding of economic plants; Grain; Hardness; Mutation; Varietal selection. Specialized plant breeding, plant breeding aims; Wheat; Yield, quality, earliness, varia; Genetic mapping; Monocotyledones; Purine derivatives; Production quality; Grains; Hexaploidy; Hardness; Texture; Cereal crop; Substitution; Gramineae; Angiospermae; Deletion; Spermatophyta; Mutation; Indole derivatives; Locus; Triticum aestivum

ABSTRACT The Hardness (Ha) locus on chromosome 5D is the main determinant of grain texture in hexaploid wheat (Triticum aestivum L.). Puroindoline (Pina‐D1, Pinb‐D1) and Grain Softness Protein (Gsp‐D1) genes are tightly linked at this locus. Additional copies of the Gsp‐1 gene are present on chromos...