Results 191 to 200 of about 44,375 (237)
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1992
Efficiency of hybrid breeding could be greatly enhanced by reliable methods of prediction of F1 hybrids values or heterosis. Use of parents per se values through different approaches (including distance computation) should be of poor efficiency for species that exhibit high heterotic effects, such as Maize.
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Efficiency of hybrid breeding could be greatly enhanced by reliable methods of prediction of F1 hybrids values or heterosis. Use of parents per se values through different approaches (including distance computation) should be of poor efficiency for species that exhibit high heterotic effects, such as Maize.
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Molecular Genetics and Metabolism, 2000
Molecular heterosis occurs when subjects heterozygous for a specific genetic polymorphism show a significantly greater effect (positive heterosis) or lesser effect (negative heterosis) for a quantitative or dichotomous trait than subjects homozygous for either allele.
D E, Comings, J P, MacMurray
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Molecular heterosis occurs when subjects heterozygous for a specific genetic polymorphism show a significantly greater effect (positive heterosis) or lesser effect (negative heterosis) for a quantitative or dichotomous trait than subjects homozygous for either allele.
D E, Comings, J P, MacMurray
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The genetical basis of heterosis
Proceedings of the Royal Society of London. Series B - Biological Sciences, 1955Abstract Appreciation of the practical value of hybrid vigour is as old as the mule, but its scientific investigation began only relatively recently. Vigour transcending that of the parents was observed in hybrids by a number of the early hybridizers and, indeed, Mendel himself records it as an incidental observation on his peas; but ...
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Heterosis: Complementation by Mitochondria
Science, 1966Many (but not all) hybrids between two genetic pure lines show heterosis; that is the hybrids grow more rapidly or larger than the parental pure lines. The mechanism is not known. Two corn crosses were studied. In one hybrid known to exhibit heterosis, the mitochondria and an artificial 1:1 mixture of parent mitochondria showed heterosis with respect ...
R G, McDaniel, I V, Sarkissian
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Heterosis in chromosome behaviour
Proceedings of the Royal Society of London. Series B - Biological Sciences, 1955Abstract Most examples and measurements of heterosis are concerned with the more familiar features of the phenotype, with such characters as size and growth rate of the body or its outer parts. This account is concerned with less accessible, though not less important, parts of the phenotype, and describes heterosis as it is shown in ...
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Heterosis and variability in the mouse
Proceedings of the Royal Society of London. Series B - Biological Sciences, 1955Abstract The relation between heterosis and variabihty discussed by previous speakers i well illustrated by an example in the mouse where the structure of the second thoracic vertebra (vertebra prominens) is very variable; it may have a broad spatulat spinous process (+ + +), a round rod-shaped one (+ +), a mere spike (+), or then may
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Comparison of dynamic 3D chromatin architecture uncovers heterosis for leaf size in Brassica napus
Journal of Advanced Research, 2022Jie Xiong, Qingyong Yang, Jinxing Tu
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