CHROMOSOME TRANSLOCATIONS IDENTIFIED IN VARIETIES OF COMMON WHEAT

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Abstract
Chromosomes implicated in spontaneous translocations in 3 wheat varieties relative to the arrangement in the variety "Chinese Spring", presumed to possess a primitive chromosomal structure, are documented. In Sonora, chromosomes 3A and 7B were involved while a translocation in S2303 involved chromosomes IB and 4A. A strain designated as ''Ellgulate'' possessed 2 interchanges involving the 3 chromosomes 4A, 6A and 7B. Due to the common presence of chromosome 7B in interchanges in some varieties, including ''Eligulate,'' meiotic associations of up to 8 chromosomes were observed in certain intervarietal hybrids.