Genetic Features of Triticale-Wheat Hybrids with Vaviloid-Type Spike Branching.

Vaviloid spike branching, also called sham ramification, is a typical trait of Jakubz. and is characterized by a lengthening of the spikelet axis. In this article, we present the results of a study of three triticale-wheat hybrid lines with differences in terms of the manifestation of the vaviloid spike branching.

Features of the organization of bread wheat chromosome 5BS based on physical mapping.

Background: The IWGSC strategy for construction of the reference sequence of the bread wheat genome is based on first obtaining physical maps of the individual chromosomes. Our aim is to develop and use the physical map for analysis of the organization of the short arm of wheat chromosome 5B (5BS) which bears a number of agronomically important genes, including genes conferring resistance to fungal diseases.

Results: A physical map of the 5BS arm (290 Mbp) was constructed using restriction fingerprinting and LTC software for contig assembly of 43,776 BAC clones.