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The chromosome location of four recombinants between Agropyron chromosome 7el2 and a wheat chromosome

Douglas R. Knott

Abstract

Four stem rust (Puccinia graminis tritici Eriks. &Henn.) resistant wheat (Triticum aestivum L.) – Agropyron recombinants were analyzed to determine the wheat chromosomes involved. The Agropyron chromosome, 7el2, was known to be homoeologous to the group 7 chromosomes of wheat. Monosomic analysis showed that all four recombinants involved wheat chromosome 7D.Key words: rust resistance, Puccinia, Agropyron, wheat, Triticum, homoeologous recombination.

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Key concepts: Agropyron, Biology, Stem rust, Puccinia, Chromosome, Genetics, Common wheat, Botany