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  • 1
    Electronic Resource
    Electronic Resource
    Male Sterility for Increased Outbreeding in Populations of Barley (1963)
    [s.l.] : Nature Publishing Group
    Nature 199 (1963), S. 407-408 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The observed proportion of male-steriles (ms ms) in various successive generations of the C.C.XIV and C.C.X V populations of barley are given in Table 1. From the- results on percentage seed-setting on the male-sterile plants their probability of outcrossing (kt) was found to be 0.42 and 0.36 in ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/199407a0
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  • 2
    Electronic Resource
    Electronic Resource
    Discriminant Analysis in Biometrical Genetics (1961)
    [s.l.] : Nature Publishing Group
    Nature 191 (1961), S. 1420-1420 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] While this new analysis in biometrical genetics may have some appeal, for its empirical value in particular, to those used to thinking only in terms of simple gene models and Mendelian ratios, it is, however, open to criticism on such grounds as the applicability of the method in general and its ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1911420a0
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  • 3
    Electronic Resource
    Electronic Resource
    Stabilizing Selection for Heading Time in a Bulk-Hybrid Population of Barley (1961)
    [s.l.] : Nature Publishing Group
    Nature 191 (1961), S. 1123-1124 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The experimental material consisted of the random samples of single plants in the bulked F3, F5, JP6, F1Z, F15, and F18 generations along with all the thirty parents of the composite cross, all planted together in a five-times replicated randomized block design. Table 1 gives the estimates of ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1911123b0
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  • 4
    Electronic Resource
    Electronic Resource
    Generalized F -Statistics and the Theory of Inbreeding and Selection (1967)
    [s.l.] : Nature Publishing Group
    Nature 214 (1967), S. 674-678 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] F-Statistics can be used to generalize models of genetic variation in natural populations. Models of this type can incorporate both selection and ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/214674a0
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  • 5
    Electronic Resource
    Electronic Resource
    Sex Ratios under Natural Selection (1963)
    [s.l.] : Nature Publishing Group
    Nature 200 (1963), S. 1340-1341 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Consider, for example, a large random mating population with the following adaptive values at an autosomal locus : Genotype AA Aa aa in females 1 1 1 + s in males 1 1 1 t (s, t 〉 0) Then, for s〉t〉s/l + 2s, there is stable equilibrium with heterozygosity: H = (s-t+ 2) (s-t) [8 + ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/2001340c0
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  • 6
    Electronic Resource
    Electronic Resource
    Evolution of Over-dominance during the Initial Spread of New Alleles (1966)
    [s.l.] : Nature Publishing Group
    Nature 209 (1966), S. 429-431 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Thus, Bodmer and Parsons5 concluded that "polymorphic over-dominant complexes have almost certainly evolved by the accumulation of linked interacting modifiers". Their theoretical analysis involved approximate solutions for the conditions and relative rates of gene frequency changes under one- and ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/209429b0
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  • 7
    Electronic Resource
    Electronic Resource
    Genetic Polymorphism in Natural Populations of Avena fatua and A. barbata (1969)
    [s.l.] : Nature Publishing Group
    Nature 221 (1969), S. 276-278 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1. Map of California showing phenotypic variation in fifteen representative samples of A. barbata. (Vicinity code: 1, Willits; 2, Hopland; 3, Oroville; 4, Santa ftosa; 5, Auburn; 6, San Francisco; 7, Santa Cruz; 8, Sonora; 9, Monterey; 10, Santa Maria; 11, Sequoia Natl. Forest; 12, Los Padres ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/221276a0
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  • 8
    Electronic Resource
    Electronic Resource
    Gynodioecy in Origanum vulgare : Computer Simulation of a Model (1968)
    [s.l.] : Nature Publishing Group
    Nature 217 (1968), S. 764-765 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] This basic model of Lewis and Crowe4 can be readily generalized for theoretical studies by simulation on digital computer. Assume that loci F and H are linked with recombination value c, hermaphrodites practise mixed selfing (s) and random outbreeding (t=1?s), and that Hh have higher self-fertility ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/217764a0
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