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  • 1
    Electronic Resource
    Electronic Resource
    Heritable somaclonal variation in gliadin proteins of wheat plants derived from immature embryo callus culture (1986)
    Springer
    Theoretical and applied genetics 71 (1986), S. 784-790 
    Details
    ISSN: 1432-2242
    Keywords: Tissue culture ; Electrophoresis ; Storage proteins ; Mutation ; Triticum aestivum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Fertile r0 plants of the winter wheat line ND7532 (Triticum aestivum L.) were regenerated from callus tissue after 60–190 days in culture. Seeds produced from these self-pollinated plants were planted in the field. Of the 5586 R1 plants, 32 differed for one or more agronomic traits from plants not passed through tissue culture process. Gliadin electrophoregrams were prepared from bulk samples of R2 seed from these 32 plants. Four of the 32 produced gliadin patterns different from controls, so 12 seeds of each of these four lines were examined individually. Three of the four mutant lines were fixed for the presence of a mutant protein of 50 relative mobility units (RMU) and the corresponding loss of a parental protein of 26 RMU. The remaining line segregated for the presence/absence of band 50 and the corresponding loss/retention of band 26. The mutant protein of 50 RMU was never seen in control plants. This indicated that either band 50 was coded for by a mutant gene allelic to the gene that coded for band 26 or that bands 26 and 50 were coded for by two different structural alleles under the control of a common regulatory locus. Each of the 12 seeds from the four mutant lines contained a prominent protein band at 30 (RMU), which was only observed as a faint band in one control seed. The types of variation in gliadin patterns observed in somaclones of ND7532 were similar to those reported for the line ‘Yaqui 50E’, except that, gliadin changes occurred less frequently in ND7532.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00276418
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Selection for white kernel color in the progeny of red/white wheat crosses (1984)
    Springer
    Euphytica 33 (1984), S. 227-232 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; wheat ; selection ; inbreeding ; maternal inheritance ; kernel color
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Data are presented which support early generation selection for white kernel color in the progeny of red/white kernel wheat crosses which are segregating at 12 or more loci for yield (or any other trait of interest). The optimum generation for selecting white kernels is determined by the frequency of seeds produced with the potential to produce plants having desired quantitative alleles from both parents, and by the frequency of white kernels produced. The F2-produced seed (F3 embryo) is shown to be the optimum generation for selecting white kernels, given that 12 or more loci are segregating for a quantitative character such as yield. When the red parent is a 2 or 3 loci red genotype, selection among F4-produced seed for white kernel color may be desirable when 5 or fewer genes are segregating for the second trait. The results have direct application for all highly heritable, recessive, sporophytic traits.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00022770
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    Paper (German National Licenses)
    Fulltext
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