Estimation of BC1 hybrids (Avena sativa L. × Avena maroccana Gdgr.) × Avena sativa L. regarding cytogenetic stability and some quantitative traits
Maria Chrząstek
bozena.denisow@up.lublin.plKatedra Biologii Roślin, Uniwersytet Przyrodniczy, Lublin (Poland)
Katarzyna Kruk
Instytut Genetyki, Hodowli i Biotechnologii Roślin, Uniwersytet Przyrodniczy, Lublin (Poland)
Sylwia Okoń
Instytut Genetyki, Hodowli i Biotechnologii Roślin, Uniwersytet Przyrodniczy, Lublin (Poland)
Edyta Paczos-Grzęda
Instytut Genetyki, Hodowli i Biotechnologii Roślin, Uniwersytet Przyrodniczy, Lublin (Poland)
Emilia Wójtowicz
Instytut Genetyki, Hodowli i Biotechnologii Roślin, Uniwersytet Przyrodniczy, Lublin (Poland)
Abstract
The hybrids BC1 (Avena sativa L. × Avena maroccana Gdgr.) × Avena sativa L and their parental forms were subject of research. Cytogenetic stability of the tested plants was determined after studying some meiosis stages and pollen viability. Conjugation and segregation of chromosomes were more disturbed in hybrids than in the parental forms. The highest frequency of micronuclei (0.134/PMC) was noted in tetrads of the Góral × Clav 8330 × Góral hybrid. Hybrid combinations showed high pollen viability, ranging from 96.90 to 99.68%. The tested hybrids were much differentiated regarding majority of quantitative traits. The longest main panicle was observed in the (Dragon × CN 39621) × Dragon hybrid while in the combination (Chwat × CN43136) × Chwat (82.00) panicle consisted of the highest number of spikelet. Mean number of kernels per panicle in the hybrids ranged from 45.55 to 201.43. Fertility of spikelet among the hybrids was not much differentiated and similar to the maternal cultivars. Significant differences among the hybrids were noticed for 1000 kernels weight and protein content. Weight of thousand kernels in the hybrid combinations was about 5.8 g lower than in the maternal forms but kernels contained more protein than the oat cultivars. The hybrid Chwat × CN43136 × Chwat was positively distinguishable, regarding most of the analyzed quantitative traits.
Keywords:
Avena sativa L., Avena maroccana Gdgr., BC1, interspecific hybrids, meiosis, quantitative traits, pollen viabilityReferences
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Authors
Maria Chrząstekbozena.denisow@up.lublin.pl
Katedra Biologii Roślin, Uniwersytet Przyrodniczy, Lublin Poland
Authors
Katarzyna KrukInstytut Genetyki, Hodowli i Biotechnologii Roślin, Uniwersytet Przyrodniczy, Lublin Poland
Authors
Sylwia OkońInstytut Genetyki, Hodowli i Biotechnologii Roślin, Uniwersytet Przyrodniczy, Lublin Poland
Authors
Edyta Paczos-GrzędaInstytut Genetyki, Hodowli i Biotechnologii Roślin, Uniwersytet Przyrodniczy, Lublin Poland
Authors
Emilia WójtowiczInstytut Genetyki, Hodowli i Biotechnologii Roślin, Uniwersytet Przyrodniczy, Lublin Poland
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Copyright (c) 2009 Maria Chrząstek, Katarzyna Kruk, Sylwia Okoń, Edyta Paczos-Grzęda, Emilia Wójtowicz
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