Effect of a rye dwarfing gene on plant height, heading stage, and Fusarium head blight in triticale (× Triticosecale Wittmack)

摘要: Triticale, an amphiploid hybrid between durum wheat and rye, is European cereal mainly grown in Germany, France, Poland, Belarus for feeding purposes. Dwarfing genes might further improve the genetic potential of triticale concerning lodging resistance yield. However, they have pleiotropic effects on other, agronomically important traits including Fusarium head blight. Therefore, we analyzed a population 199 doubled haploid (DH) lines cross HeTi117-06 × Pigmej plant height, heading stage, FHB severity across 2 locations years. The most prominent QTL was detected chromosome 5R explaining 48, 77, 71 % genotypic variation severity, respectively. frequency recovery validation ≥90 all three traits. Because markers that detect dwarfing gene Ddw1 rye are also our closely linked markers, assume this major resembles Ddw1. For two, height three, stage five additional were detected. Caused by considerable within progeny with allele, short-strawed, early FHB-resistant can be developed when size large enough.