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  • 1
    Electronic Resource
    Electronic Resource
    Microsatellites in Malus X domestica (apple): abundance, polymorphism and cultivar identification (1997)
    Springer
    Theoretical and applied genetics 94 (1997), S. 249-254 
    Details
    ISSN: 1432-2242
    Keywords: Key words Microsatellites ; Apple ; Identification
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Screening of an apple genomic library with (GA)15 and (GT)15 probes demonstrated that these repeats are abundant, occurring about every 120 and 190 kb, respectively. Microsatellites isolated from a small insert library enriched for (GA) repeats contained numbers of repeats ranging from 7 to 39. Primers to these microsatellite loci were able to direct the amplification of the repeats in 21 different cultivars. The majority of markers were highly polymorphic, diploid, and showed simple Mendelian inheritance, although about 25% of markers generated complex banding patterns consistent with the amplification of more than one locus. As few as three microsatellite markers were sufficient to differentiate between all 21 cultivars.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001220050407
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Genetic investigation of contributions of embryo and endosperm genes to malt Kolbach index, alpha-amylase activity and wort nitrogen content in barley (1998)
    Springer
    Theoretical and applied genetics 96 (1998), S. 709-715 
    Details
    ISSN: 1432-2242
    Keywords: Key words Two-rowed barley ; Embryo and endosperm effects ; Kolbach index ; Alpha-amylase ; Wort-N ; GE interaction
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  A genetic model is proposed for the analysis of embryo and endosperm effects as well as GE interaction effects. An investigation of three malting quality traits in grains of seven parents and their F2s was undertaken in a half-diallel cross of barley (Hordeum distichum L.) over 2 years. The results indicated that the malt Kolbach index (KI), alpha-amylase activity (αAA) and wort soluble nitrogen (Wort-N) are controlled by both embryo genetic effects and endosperm genetic effects. Variance of the endosperm additive effects was obviously larger than that of the embryo additive effects. In the contribution of the embryo genetic effects to variation in malt αAA and Wort-N, the dominance effects were considerably larger than the additive effects. The endosperm dominance effects constituted a major part of the total genetic effect on the KI. Significant endosperm GE interactions were also detected in the malt traits concerned. Endosperm general heritability (h 2 e ) tended to be larger than interaction heritability (h 2 oE or h 2 eE ) for all the traits. Endosperm heterosis was observed to be significantly positive for αAA but negative for Wort-N in the F2 seed generation. Prediction of main gene effects for seven parents showed that ‘Ganmu 2’ and ‘Supi1’ were suitable parental varieties for malt αAA and Wort-N improvement. Our genetic model for malting quality traits and its application in breeding are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001220050792
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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