Linkage relationships of genes for leaf morphology and double flowering in Matthiola incana |
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Authors: | R. Ecker A. Barzilay E. Osherenko |
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Affiliation: | (1) Department of Ornamental Horticulture, Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel |
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Abstract: | Summary The inheritance and linkage relationships of a leaf morphology gene of Matthiola incana were investigated. The allele for sinuate leaf shape, c, was found to be recessive to the allele for normal entire leaf, C. The c allele was tightly linked to the recessive allele for double flowering, s. The recombination frequency between the two loci was close to zero. The mode of inheritance of the C gene was in accordance with the hypothesis that a pollen lethal gene is responsible for the constant 1:1 segregation ratio of double-flowered (= male sterile) to single-flowered (= fertile) plants in most M. incana breeding lines. The sinuate leaf allele seemed to reduce the frequency and delay the flowering of double-flowered plants. The importance of the C gene as a double flowering marker in the cultivation and the breeding of M. incana is discussed.Contribution from the Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel. No. 1128-E, 1993 series. |
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Keywords: | double flowering gametic lethal leaf morphology marker Matthiola incana |
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