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GrainGenes Reference Report: BIU-230-387

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Reference	BIU-230-387
Title	Molecular and cytogenetic analysis and estimation of some quantitative traits of interspecific hybrids Avena sativa L. x Avena fatua L
Journal	Biuletyn Instytutu Hodowli i Aklimatyzacji Roslin
Year	2003
Volume	230
Pages	387-397
Author	Chrzastek M Paczos-Grzeda E
Language	Polish
Abstract	Genetic and breeding studies of F2 interspecific hybrids derived from Avena sativa cv. Borys x A. fatua and the parental forms were performed. Hybrid character of this cross combination was confirmed using the RAPD method. Configurations of chromosomes in pollen mother cells (PMCs) at metaphase I and anaphase I, frequency of micronuclei in tetrads, viability and size of pollen grains were analysed to estimate the cytogenetic stability of the hybrids. At metaphase I, mainly bivalents were observed and at anaphase I rarely lagging chromosomes and chromatid bridges were noted. In the hybrids, as well as in the initial forms, tetrads were properly formed and pollen was highly viable. The obtained results testify to good stability of the analysed genotypes. The hybrids were compared to their parental forms regarding some quantitative traits. In majority of the cases, significant differences were noted. In comparison with Borys, hybrids were higher and had longer panicles. Number of spikelets per panicle, as well as number and weight of kernels, were lower than in the parental forms. Higher fertility and total protein content in kernels, but at the same time lower weight of 1000 kernels, were recorded for the hybrids
Keyword	anaphase [ Show all 23 ]

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