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Cytogenetic Studies of Crosses between Lolium multiflorum Lam. and Festuca arundinacea Schreb. III. The Generations C1, C2 and C3
Authors:G Kleijer
Institution:Author's address: Dr. G. Kleijer;, Station Fédérale de Recherches Agronomiques de Changins, CH-1260 Nyon (Suisse).
Abstract:Meiotic observations of 56-chromosome plants of the C1, C2 and C3 generations of the amphidiploid Lolium multiflorum × Festuca arundinacea showed that most of the chromosomes paired as bivalents. However, uni- and multivalents were frequently observed. No difference in meiotic regularity and stability could be detected between the different generations. The average chromosome number and; the percentage of 56-chromosome plants decreased with increasing generations. The direct use of the 56-chromosome amphidiploids of L. multiflorum and F. arundinacea in a breeding programme appears to be quite difficult, but these plants can be used in a backcross programme with Lolium and Festuca.
Keywords:Lolium multiflorum                        Festuca arundinacea            intergeneric hybrids  amphidiploids  meiotic analyses  aneuploids
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