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  • Articles  (3)
  • Seed proteins  (3)
  • 1
    Electronic Resource
    Electronic Resource
    Mapping the nucleolus organizer region, seed protein loci and isozyme loci on chromosome 1R in rye (1986)
    Springer
    Theoretical and applied genetics 71 (1986), S. 742-749 
    Details
    ISSN: 1432-2242
    Keywords: Ribosomal DNA ; Seed proteins ; Isozymes ; Genetic mapping ; 5S DNA sequence ; Secale cereale
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The nucleolus organizer region located on the short arm of chromosome 1R of rye consists of a large cluster of genes that code for ribosomal RNA (designated the Nor-R1 locus). The genes in the cluster are separated by spacer regions which can vary in length in different rye lines. Differences in the spacer regions were scored in two families of F2 progeny. Segregation also occurred, in one or both of the families, at two seed protein loci and at two isozyme loci also located on chromosome 1R. The seed protein loci were identified as the Sec 1 locus controlling ω-secalins located on the short arm of chromosome 1R and the Sec 3 locus controlling high-molecular-weight secalins located on the long arm of 1R. The two isozyme loci were the Gpi-R1 locus controlling glucose-phosphate isomerase isozymes and the Pgd 2 locus controlling phosphogluconate dehydrogenase isozymes. The data indicated linkage between all five loci and map distances were calculated. The results indicate a gene order: Pgd 2 ... Sec 3 ... [centromere] ... Nor-R1 ... Gpi-R1 ... Sec 1. Evidence was obtained that rye possesses a minor 5S RNA locus (chromosome location unknown) in addition to the major 5S RNA locus previously shown to be located on the short arm of chromosome 1R.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00263273
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  • 2
    Electronic Resource
    Electronic Resource
    Chromosomal location of genes controlling seed proteins in species related to wheat (1981)
    Springer
    Theoretical and applied genetics 59 (1981), S. 25-31 
    Details
    ISSN: 1432-2242
    Keywords: Seed proteins ; Wheat ; Barley ; Rye ; Ae. umbellulata ; Ag. elongatum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The seed proteins of ‘Chinese Spring’ wheat stocks which possess single chromosomes from other plant species related to wheat have been separated by gel electrophoresis in the presence of sodium dodecyl sulphate. Marker protein bands have been detected for both arms of barley chromosome 5, chromosome E (= 1R) and B (= 2R) of rye, chromosomes A,B (= 1Cu) and C (= 5Cu) of Aegilops umbellulata and chromosomes I and III of Agropyron elongatum. These studies, and previous findings, indicate that chromosome 5 of barley, chromosome 1R of rye, chromosome I of Ag. elongatum and possibly chromosome 1Cu of Ae. umbellulata are similar to chromosomes 1A, 1B and 1D in hexaploid wheat in that they carry genes controlling prolamins on their short arms and genes controlling high-molecular-weight (apparent molecular weight greater than 86,000) seed protein species on their long arms. These findings support the idea that all these chromosomes are derived from a common ancestral chromosome and that they have maintained their integrity since their derivation from that ancestral chromosome.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00275771
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  • 3
    Electronic Resource
    Electronic Resource
    Inheritance of glutenin protein subunits of wheat (1981)
    Springer
    Theoretical and applied genetics 60 (1981), S. 333-337 
    Details
    ISSN: 1432-2242
    Keywords: Wheat ; Seed proteins ; Glutenin protein ; subunits
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The inheritance of the high-molecular-weight (HMW) glutenin protein subunits in hexaploid wheat has been investigated by using sodium dodecyl sulphate-polyacrylamide gel electrophoresis to examine the segregation of these subunits in 496 test-cross seeds. The parents of the f1 hybrid were chosen so that the test-cross seeds segregated for all the HMW glutenin bands. Two glutenin subunits from one parent, believed to be controlled by genes on chromosome 1D, segregated as alternatives to two glutenin subunits from the other parent, a result that supports the assumption that these subunits are controlled by allelic genes at each of two loci that are very closely linked. Similar results were obtained for glutenin subunits believed to be controlled by chromosome IB, which suggests that these subunits are controlled also by allelic genes at each of two loci that are very closely linked. A single glutenin subunit band, believed to be controlled by chromosome 1A, segregated as an alternative to a single glutenin band from the other parent, except that one seed did not possess either band. It was concluded that these bands are controlled either by allelic genes or by nonallelic genes that are very closely linked.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00264323
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