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  • Chemistry  (4)
  • Selection  (3)
  • Overlapping generations  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Phenotypic response to selection for traits with direct and maternal components when generations overlap (1985)
    Springer
    Theoretical and applied genetics 70 (1985), S. 123-127 
    Details
    ISSN: 1432-2242
    Keywords: Selection ; Maternal effects ; Overlapping generations
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Prediction of response to selection for traits with direct and maternal components is described for discrete and overlapping generations. Expected phenotypic response is the sum of direct and maternal contributions, the latter having a genetic and an environmental component. With overlapping generations the selection differentials achieved on these components are added to respective updated vectors containing age-sex distributions with values of previous selection rounds. An example demonstrates that in the early stages, results may be considerably affected by environmental correlations between direct and maternal effects. The method could be helpful in interpreting phenotypic changes in a population selected for traits with maternal effects.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00275310
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Effect on linkage disequilibrium of selection for a quantitative character with epistasis (1983)
    Springer
    Theoretical and applied genetics 65 (1983), S. 25-30 
    Details
    ISSN: 1432-2242
    Keywords: Linkage disequilibrium ; Selection ; Genetic variance ; Quantitative traits ; Epistasis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Selection for a character controlled by additive genes induces linkage disequilibrium which reduces the additive genetic variance usable for further selective gains. Additive x additive epistasis contributes to selection response through development of linkage disequilibrium between interacting loci. To investigate the relative importance of the two effects of linkage disequilibrium, formulae are presented and results are reported of simulations using models involving additive, additive x additive and dominance components. The results suggest that so long as epistatic effects are not large relative to additive effects, and the proportion of pairs of loci which show epistasis is not very high, the predominant effect of linkage disequilibrium will be to reduce the rate of selection response.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00276258
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Possible biases in heritability estimates from intraclass correlation (1978)
    Springer
    Theoretical and applied genetics 53 (1978), S. 25-27 
    Details
    ISSN: 1432-2242
    Keywords: Bias ; Heritability ; Intraclass correlation ; Selection
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary There is an inherent bias in intraclass correlations since the expectation of a ratio does not equal the ratio of expectations. A simple accurate approximation for this bias is derived, and it is found that the inherent bias is usually negligible. Selection of sires is known to bias half-sib heritability estimates, and appropriate formulae are given and discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00273132
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Theory of nucleus breeding schemes with overlapping generations (1978)
    Springer
    Theoretical and applied genetics 53 (1978), S. 17-24 
    Details
    ISSN: 1432-2242
    Keywords: Nucleus ; Genetic ; Breeding ; Overlapping generations
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Explicit methods are derived for estimating steady-state genetic responses and genetic differences between nucleus and base progeny crops in open nucleus breeding schemes which utilize genetic differences between progeny groups with parents of different ages or between age groups. Explicit methods are also given for estimating proportions which should be selected from the different nucleus and base selection groups so as to maximise genetic responses under each of a range of selection methods. Some basic differences between selection programmes utilizing genetic differences between progeny groups with parents of different ages and those utilizing genetic differences between age groups in nucleus breeding schemes are summarized.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00273131
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Darstellung von Aethylenchlorsulfocyanid und β-Chlorpropionsäure (1885)
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 31 (1885), S. 411-412 
    Details
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prac.18850310131
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Ueber Derivate des Taurins. II. Theil (1886)
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 34 (1886), S. 348-352 
    Details
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prac.18860340133
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Ueber die Einwirkung von Chlor auf organische Sulfocyanide (1887)
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 35 (1887), S. 459-464 
    Details
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prac.18870350148
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    Ueber Aethylenchlorbromid und Abkömmlinge des Aethylenchlorsulfocyanids (1882)
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 26 (1882), S. 378-384 
    Details
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prac.18820260126
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    Paper (German National Licenses)
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