title: General features of chromosome substitutions in Triticum aestivum x T. timopheevii hybrids.
abstract: Based on a C-banded chromosome analysis of Triticum aestivum x T. timopheevii hybrid lines, we developed a classification of the A(t) and G genome chromosomes that agrees with the standard genetic nomenclature of T. aestivum chromosomes. Transfer of genetic material from T. timopheevii to T. aestivum involved complete chromosomes, chromosome arms, or segments. Frequencies of chromosome substitution were highest for homoeologous group 2 and lowest for group 4. Moreover, B(G) substitutions were frequent compared to A(A(t)). The pattern of chromosome substitutions and rearrangements were unequal and depended on the genotype of the parental T. aestivum cultivar.
authors.affiliation: V. A. Engelhardt Institute of Molecular Biology, USSR Academy of Sciences, Vavilov str. 32, 117984, Moscow, USSR.
authors.forename: E D
authors.initials: ED
authors.lastname: Badaeva
authors.forename: E B
authors.initials: EB
authors.lastname: Budashkina
authors.forename: N S
authors.initials: NS
authors.lastname: Badaev
authors.forename: N P
authors.initials: NP
authors.lastname: Kalinina
authors.forename: F M
authors.initials: FM
authors.lastname: Shkutina