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  • 1985-1989  (2)
  • 1980-1984
  • Chromosome arm  (1)
  • Drosophila melanogaster  (1)
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  • 1985-1989  (2)
  • 1980-1984
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Keywords
  • 1
    Electronic Resource
    Electronic Resource
    The isolation, characterization and application in the Triticeae of a set of wheat RFLP probes identifying each homoeologous chromosome arm (1989)
    Springer
    Theoretical and applied genetics 78 (1989), S. 342-348 
    Details
    ISSN: 1432-2242
    Keywords: Hexaploid wheat ; RFLPs ; Homoeology ; Chromosome arm ; Alien additions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary To investigate the use of RFLP analysis in the Triticeae, a set of low copy number probes has been isolated from a wheat cDNA library. The probes identify each of the 14 homoeologous chromosome arms of wheat as determined by analysis of DNA fragments hybridizing to the probes in aneuploid lines of Chinese Spring. These probes can be used in RFLP analyses both for the assignment of homoeology of alien chromosomes or arms added to wheat, and for the determination of chromosome dosage in wheat aneuploids. Different chromosomes from various Triticeae species can therefore be followed in a wheat genetic background using a single technique. The potential uses of the set in facilitating the transfer of alien segments into wheat are outlined.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00265294
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Heterosis × nutrition interaction in Drosophila melanogaster (1988)
    Springer
    Theoretical and applied genetics 76 (1988), S. 136-142 
    Details
    ISSN: 1432-2242
    Keywords: Drosophila melanogaster ; Genotype × Environment interaction ; Heterosis ; Epistasis ; Electrophoresis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The relationship between heterozygosity and the expression of heterosis at two different nutrition levels was investigated using Drosophila melanogaster. Average daily egg production and egg hatchability were measured in two parental strains and in F1, F2 and reciprocal backcross generations. Heterosis was more pronounced in the poor nutritional conditions. Two electrophoretic markers used to estimate the level of heterozygosity in F2 and backcrosses revealed an excess of heterozygous genotypes. Quantitative genetic effects (an additive line effect and individual and maternal heterosis) were estimated for both traits in the two environments. Although this model gave a reasonable fit in most cases, some epistatic interaction would have to be invoked in order to explain fully the results.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00288844
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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