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Vardi, A., Laboratory of Genetics, The Hebrew University, Jerusalem, Israel
1. Triploid hybrids between Triticum durum (genomic constitution AABB) and Aegilops speltoides (BB) were found to set rare seed when massively backpollinated to their tetraploid durum parent. Roughly stabilised durum-like tetraploid derivatives were obtained in the third hybrid generation. 2. In the case of Ae. speltoides diploid to tetraploid introgression is complicated by the suppression of the wheats' 5B effect on bivalent formation. Thus cytological stabilisation and restoration of fertility in F2 and F3 are relatively slower, compared with T. durum x T. boeoticum AAB triploid combination. © 1971 The Genetical Society of Great Britain.
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Introgression from diploid Aegilops speltoides to tetraploid durum wheat
26
Vardi, A., Laboratory of Genetics, The Hebrew University, Jerusalem, Israel
Introgression from diploid Aegilops speltoides to tetraploid durum wheat
1. Triploid hybrids between Triticum durum (genomic constitution AABB) and Aegilops speltoides (BB) were found to set rare seed when massively backpollinated to their tetraploid durum parent. Roughly stabilised durum-like tetraploid derivatives were obtained in the third hybrid generation. 2. In the case of Ae. speltoides diploid to tetraploid introgression is complicated by the suppression of the wheats' 5B effect on bivalent formation. Thus cytological stabilisation and restoration of fertility in F2 and F3 are relatively slower, compared with T. durum x T. boeoticum AAB triploid combination. © 1971 The Genetical Society of Great Britain.
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