title: Karyotype stabilization in intergeneric hybrids of the subtribe Triticinae : 1. The effects of genome structure.
abstract: The C-banded data obtained from Triticinae hybrids are studied with reference to the stabilization of their karyotypes. The types of hybrids distinguished according to genome structure are type I with minimally one diploid genome and type II with a haploid set only. Comparative analysis demonstrates that type I differs from II in karyotype stabilization. The chromosomes from various haploid genomes are combined into new genomes in type I; type II is represented only by amphiploids with the complete set of the chromosomes from all the genomes. The meiotic behaviour of the haploid genome chromosomes were found to have a modifying effect on karyotype stabilization: type II becomes I when homoeologous pairing level is high and when it is associated with the reductional division of univalents.
authors.affiliation: Academy of Sciences of the Siberian Department, Institute of Cytology and Genetics, 630090, Novosibirsk, USSR.
authors.forename: A I
authors.initials: AI
authors.lastname: Shchapova
authors.forename: T A
authors.initials: TA
authors.lastname: Potapova
authors.forename: L A
authors.initials: LA
authors.lastname: Kravtsova
authors.forename: O M
authors.initials: OM
authors.lastname: Numerova