The Effect of Substitution of Chromosome 5A with an Extra Chromosome 5B in the Progeny of a Somaclonal Common Wheat Line Monosomic for 5A

The Effect of Substitution of Chromosome 5A with an Extra Chromosome 5B in the Progeny of a... Cytogenetic analysis was employed in studying the cause of generation of fertile awned forms in the progeny of plants, which were selected from a speltoid somaclonal wheat line monosomic for chromosome 5A (2n = 41 = 20II + I), had speltoid spikes, and were reproduced by self pollination. On cytogenetic and genetic evidence, chromosome 5A was eliminated and the copy number of chromosome 5B increased in the plants examined. The appearance of an extra chromosome 5B is probably caused by nondisjunction of bivalent 5B in the presence of a telocentric originating from the long arm of chromosome 5A. A difference in meiotic segregation was observed for univalent chromosomes 5A and 5B. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

The Effect of Substitution of Chromosome 5A with an Extra Chromosome 5B in the Progeny of a Somaclonal Common Wheat Line Monosomic for 5A

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Publisher
Kluwer Academic Publishers-Plenum Publishers
Copyright
Copyright © 2003 by MAIK “Nauka/Interperiodica”
Subject
Biomedicine; Human Genetics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1023/B:RUGE.0000009155.10236.58
Publisher site
See Article on Publisher Site

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