IDENTITY OF THE WHEAT CHROMOSOMES REPLACED BY AGROPYRON CHROMOSOMES IN A TRIPLE ALIEN CHROMOSOME SUBSTITUTION LINE IMMUNE TO WHEAT STREAK MOSAIC
- 1 March 1970
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Genetics and Cytology
- Vol. 12 (1) , 145-150
- https://doi.org/10.1139/g70-021
Abstract
A derivative of Triticum aestivum L. emend Thell. cultivar Rescue3 (2n = 42) × Agropyron elongatum (Host.) Beauv. (2n = 70) is immune to wheat streak mosaic virus Marmor virgatum McK., has 21 pairs of chromosomes, and hybridizes readily with wheat. By crossing with lines ditelosomic for known chromosomes it was determined that Agropyron chromosomes have replaced wheat chromosomes 4D, 5D, and 6D. In growth habit the immune line is like Rescue, but its long slender spikes, absence of awns, and small, slender, blue seeds resemble Agropyron.Keywords
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