IDENTIFICATION OF THREE CHROMOSOMAL INTERCHANGES IN COMMON WHEAT, TRITICUM AESTIVUM L.
Open Access
- 1 June 1974
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Genetics and Cytology
- Vol. 16 (2) , 349-354
- https://doi.org/10.1139/g74-039
Abstract
Analyzing the F1 P.M.C.s of the crosses between Solo and the 21 monosomic lines of Chinese Spring three chromosomal interchanges involving six wheat chromosomes were identified. 5B/7B involves the longest segments and is already known in other varieties. 7A/7D involves a powdery mildew resistance gene, probably Pm 1 on the distal end of the long arm of chromosome 7A. An attempt is made to explain the deviating segregation ratios of these two aneuploid F2's in the mildew tests. 2A/4D probably involves very short segments since only one single cell out of 1,400 P.M.C.s showed three quadrivalents.Keywords
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