コムギ属植物における穀粒のフェノール反応の変異およびフェノール反応に関与する遺伝子の座乗染色体

A total of 3,606 accessions of the genus Triticum involving diploid, tetraploid, hexaploid, and synthetic wheat and 7 Aegilops materials were tested for the phenol reaction in kernels. All hexaploid wheat showed a positive reaction to phenol, but deffered in staining degree. One of the synthetic wheat lines showed a negative reaction to phenol. Using monosomics, ditelosomics and nulli-tetrasomics in the common wheat cv Chinese Spring (Triticum aestivum L.), and Langdon (Triticum turgidum var. durum) disomic substitutions, genes controlling phenol reaction of kernels were located on chromosomes 2A, 2B and 2D. Synteny of the chromosome region involving the phenol reaction gene in some gramineous plants was discussed.