title: An N-band marker for gene Lr18 for resistance to leaf rust in wheat.
abstract: The leaf rust resistance gene, Lr18, of common wheat cultivars has been derived from Triticum timopheevi and is located on chromosome arm 5BL. Chromosome banding (N-banding) analyses revealed that in the wheat cultivars carrying Lr18 that were examined, which had been bred in 6 different countries, chromosome arm 5BL possessed a specific terminal band not carried by their susceptible parental cultivars. It was suggested that this terminal N-band was introduced from T. timopheevi together with Lr18. N-banding analysis of a T. timopheevi strain showed that one of two timopheevi chromosomes had provided Japanese wheat lines containing Lr18 with the terminal band.
authors.affiliation: Tohoku National Agricultural Experiment Station, Shimokuriya-gawa, Morioka, 020-01, Iwate, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Yamamori