Wild and Cultivated Homoeologous Barley Chromosomes Can Associate and Recombine in Wheat in the Absence of the Ph1 Locus

Bread wheat is an allohexaploid that behaves as a diploid during meiosis, the cell division process to produce gametes occurring in organisms with sexual reproduction. Knowledge of mechanisms implicated meiosis can contribute facilitating transfer desirable traits from related species into crop like framework breeding. It particularly interesting shed light on controlling correct pairing between homologous (equivalent) chromosomes and recombination, even more polyploid species. The Ph1 (Pairing homoeologous 1) locus recombination. In this work, we aimed study whether (equivalent different genomes) Hordeum chilense (wild barley) H. vulgare (cultivated associate recombine background absence locus. For this, have developed double monosomic addition lines for same homoeology group ph1b mutant background. Using genomic situ hybridization, visualized two cultivated) barley studied processes recognition, association, recombination Our results showed does not prevent chromosome but it regulate