Inheritance of Temperature‐Induced Pseudocompatibility in Rye

摘要

AbstractThe differences between pseudocompatible seed produced by selfing self‐incompatible plants of rye (Secale cerealeL.) at high temperatures were investigated. The isozyme lociPrx7and β‐Gluwhich are linked to the two self‐incompatibility lociSandZ, were used as markers. Different alleles ofSandZstrongly influenced the pseudocompatibility. For the locusSat 30°C a scale of varying efficiency of theSalleles was found. Furthermore, it proved possible to select one population with increased and one with decreased pseudocompatibility at high temperatures. The population with high pseudofertility was still incompatible under normal temperature conditions. Such selected material facilitates the production of inbred lines of self‐incompatible rye material, which can be a useful tool in an efficient rye breeding