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  • Articles  (35)
  • Articles: DFG German National Licenses  (35)
  • Wheat
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  • Springer  (35)
  • Periodicals Archive Online (PAO)
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  • 1980-1984  (35)
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  • Articles  (35)
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  • Articles: DFG German National Licenses  (35)
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  • Springer  (35)
  • Periodicals Archive Online (PAO)
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  • 2020-2024
  • 2015-2019
  • 1995-1999
  • 1980-1984  (35)
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  • 1
    Electronic Resource
    Electronic Resource
    Genetic studies of frost resistance in wheat (1981)
    Springer
    Theoretical and applied genetics 59 (1981), S. 145-152 
    Details
    ISSN: 1432-2242
    Keywords: Wheat ; Frost resistance ; Diallel cross ; F2monosomics ; Substitutions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Genetic studies of frost resistance were performed on various wheat varieties using diallel, F2 monosomic and substitution analysis. A six-parental cross including reciprocals was carried out, and F1 hybrids and their parents were used for the freezing tests under controlled conditions. Both the general combining ability (GCA) and the specific combining ability (SCA) were significant, indicating additive and non-additive gene action in the inheritance of frost resistance. The high GCA∶SCA ratio revealed a preponderance of additive genetic variance. No significant reciprocal differences were found between the reciprocal crosses. The variance/covariance graphical analysis indicated the partial dominance of frost sensitivity. Frost sensitive varieties had the largest number of dominant genes, while frost resistant varieties had the highest proportion of recessive genes. The magnitude of the additive component of variation was higher than that of the dominance component, and the overall measure of the degree of dominance was smaller than one, so average dominance is incomplete. The increasing and decreasing alleles are not equally frequent at all loci. In this set of wheat varieties the values of narrow and broad heritability are relatively high. F2 monosomic analysis of the winter wheat variety ‘Arthur’ crossed with the monosomics of ‘Chinese Spring’ revealed that the average frost resistance of all the 21 monosomics was lower than that of the disomic. F2 monosomic hybrids 5A, 2B, 4B and 5D proved to be relatively frost resistant, while monosomics 3A, 3B and 6D were the most sensitive. The control of frost resistance in the set of chromosome substitution lines of the variety ‘Cheyenne’ into ‘Chinese Spring’ (with the exception of 2B) indicated that the genes responsible for the frost resistance of ‘Cheyenne’ are localised in chromosomes 5A, 7A, 4B, 5B, 4D and 5D. The genetic basis of frost resistance and problems of analysis are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00264968
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  • 2
    Electronic Resource
    Electronic Resource
    Monosomic analysis of genes for resistance against stem rust races in bread wheat (1981)
    Springer
    Theoretical and applied genetics 59 (1981), S. 313-316 
    Details
    ISSN: 1432-2242
    Keywords: Triticum aestivum ; Wheat ; Puccinia graminis ; Stem rust resistance ; Monosomic analysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Using monosomic analysis genes governing resistance in one wheat variety, ‘E5883’, against stem rust races 15C and 122, were located on specific chromosomes. Against race 15C, a major dominant gene, Sr6, was located on chromosome 2D of ‘E5883’ with minor modifiers found on chromosomes 4A and 6D. Against race 122, the presence of a recessive hemizygous ineffective gene, Sr8, was identified, located on chromosome 6A of variety ‘E5883’.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00264984
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  • 3
    Electronic Resource
    Electronic Resource
    Analysing environments for plant breeding purposes as exemplified by multivariate analyses of long term wheat yields (1981)
    Springer
    Theoretical and applied genetics 59 (1981), S. 317-325 
    Details
    ISSN: 1432-2242
    Keywords: Environmental evaluation ; Plant breeding ; Multivariate analysis ; Wheat ; Climatic variable
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary A previous attempt to relate long term yields from the Western Australian wheat belt to climatic factors proved only partially successful. Here, principal component analysis has been used to examine the patterns of variability created by those socio-economic factors which may have obscured any underlying relationship which existed between yield and climate. In fact, these analyses revealed the existence of variation peculiar to particular groups of years, a result which could explain why many attempts to relate crop yields directly to climatic factors have proved unsuccessful. The plant breeding implications of these genotype x environment interactions are considered.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00264985
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  • 4
    Electronic Resource
    Electronic Resource
    Genetic variation in wheat endosperm proteins: an analysis by two-dimensional electrophoresis using intervarietal chromosomal substitution lines (1981)
    Springer
    Theoretical and applied genetics 59 (1981), S. 361-371 
    Details
    ISSN: 1432-2242
    Keywords: Wheat ; Endosperm ; Proteins ; Electro phoresis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The major endosperm proteins in a range of genotypes of hexaploid wheat have been fractionated by two-dimensional electrophoresis. The genotypes included nine varieties and forty four intervarietal substitution lines in which chromosomes 1A, 1B, 1D, 6A, 6B or 6D from eight of the varieties have been introduced one at a time into a common genetic background. The appearance of different protein subunits was often correlated with a chromosome substitution. This showed that many of the genes for the high molecular weight protein subunits (molecular weight range 55,000 to 140,000 determined by SDS polyacrylamide gel electrophoresis) are specified by chromosomes 1A, 1B and 1D while many of the lower molecular weight subunits (molecular weight range 30,000 to 45,000) are specified by chromosomes 6A, 6B and 6D. The different protein subunits correlated with chromosome substitution could not always be recognised in the varietal source of the substituted chromosome. The different subunits specified by homologous chromosomes in different wheat varieties may differ in isoelectric point and/or molecular weight.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00276450
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  • 5
    Electronic Resource
    Electronic Resource
    Biochemical markers associated with two Mv chromosomes from Aegilops ventricosa in wheat-Aegilops addition lines (1981)
    Springer
    Theoretical and applied genetics 60 (1981), S. 5-10 
    Details
    ISSN: 1432-2242
    Keywords: Wheat ; Aegilops ventricosa ; Addition lines ; Biochemical markers
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The distribution of three biochemical markers, U-1, CM-4 and Aphv-a, -b, among wheat-Aegilops addition lines carrying Mv chromosomes from Aegilops ventricosa (genomes DvMv) has been investigated. Addition lines which had been previously grouped together on the basis of common non-biochemical characters carried marker U-1, a protein component from the 2M urea extract. The added chromosome, in the appropriate genetic background, seems to confer a high level of resistance to the eyespot disease, caused by the fungus Cercosporella herpotrichoides. The other two markers were concomitantly associated with another similarly formed group of addition lines. Both CM-4, a protein component from the chloroform:methanol extract, and Aphv-a, -b, alkaline phosphate isozymes, have been previously shown to be associated with homoeologous chromosome group 4, which suggests that the added chromosome in the second group of addition lines is 4Mv.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00275171
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  • 6
    Electronic Resource
    Electronic Resource
    The role of ‘Norin 10’ dwarfing genes in photosynthetic and respiratory activity of wheat leaves (1981)
    Springer
    Theoretical and applied genetics 60 (1981), S. 81-84 
    Details
    ISSN: 1432-2242
    Keywords: Wheat ; ‘Norin 10’ dwarfing genes ; Photosynthesis ; Respiration
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary A comparative analysis of eight cultivars of spring wheat (Triticum aestivum) classified by height as tall (T), semi-dwarf (D1), dwarf (D2) and very dwarf (D3) was conducted to study their efficiency of oxygen exchange during photosynthesis and dark respiration. Two cultivars were included in each height group. Cultivars carrying ‘Norin 10’ dwarfing genes (D1, D2 and D3) were found to have a significantly higher photosynthetic rate per unit leaf area than talls (T) that lack these genes. Among the ‘Norin’ gene carriers, dwarf group (D2) was most efficient, followed by very dwarf (D3) and semi-dwarf (D1). Photosynthetic rate and respiratory rate were found to have a positive relationship.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00282421
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  • 7
    Electronic Resource
    Electronic Resource
    Identification of a 4A/7R and a 7B/4R wheat-rye chromosome translocation (1981)
    Springer
    Theoretical and applied genetics 59 (1981), S. 33-37 
    Details
    ISSN: 1432-2242
    Keywords: Wheat ; Rye ; Gene transfer ; Translocations ; Homoeologous genes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary By producing chromosome substitutions with ‘Imperial rye’ chromosomes 4R (C) and 7R (D) in the wheat cultivar ‘Chinese Spring’ two spontaneous translocation lines were obtained. One involves segments of wheat chromosome 4A and rye chromosome 7R, the other involves portions of wheat chromosome 7B and rye chromosome 4R
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00275773
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  • 8
    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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  • 9
    Electronic Resource
    Electronic Resource
    Observed and hypothetical leaf rust progress curves of some genotypes of wheat (1981)
    Springer
    Theoretical and applied genetics 60 (1981), S. 85-88 
    Details
    ISSN: 1432-2242
    Keywords: Wheat ; Leaf rust ; Resistance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The hypothetical leaf rust progress curves of 15 genotypes of wheat were generated by integrating the components of slow rusting resistance determined in the glasshouse. The area under the disease progress curve (AUDPC) from the hypothetical and observed leaf rust progress curves were compared. It was found that the hypothetical AUDPC values of all the genotypes studied were smaller than their respective observed AUDPC values. Possible causes for the discrepancies in the observed and hypothetical values are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00282422
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  • 10
    Electronic Resource
    Electronic Resource
    Race-specific interactions between wheat genotypes and Indian cultures of stem rust (1981)
    Springer
    Theoretical and applied genetics 60 (1981), S. 161-166 
    Details
    ISSN: 1432-2242
    Keywords: Gene expression ; Resistance ; Local virulence ; Stem rust ; Wheat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Near isogenic/substitution lines of stem rust resistance genes in different backgrounds of ‘Marquis’, ‘Chinese Spring’ and W 2691 and certain varieties with known genes for stem rust resistance were tested against each of 19 Indian cultures of stem rust races/biotypes (14, 15, 17, 21, 21A-1, 24, 34, 40, 40A, 42, 42B, 117, 117A, 117A-1, 122, 184, 194, 222 and 295). Sr 24 (‘Sear's 3D/Ag’), Sr 24 (TR 380-27 4/3 Ag 14-White seeded recombinant with ‘Agent’ type resistance), Sr 25 (‘Sear's 7D/Ag’), Sr 26 (‘Eagle’), Sr 26 (Knott's 6A/Ag translocation), Sr 27 (WRT 238-5), Combination line (Sr Tt1 + Sr 9b) were observed to be completely effective against all the 19 cultures tested. In addition, a number of lines, such as TAF2d (Sr Agi), Line W(Sr Tt2) and Combination III (Sr Tt1 + Sr 9e), were found to be effective against at least three of the most prevalent races (21, 40A and 117A-1) and a virulent race 122 in Indian natural population. Lines carrying genes other than Sr 2, Sr 9a, Sr 9f (‘Chinese Spring’) and Sr 15 (‘Norka’), and Line E were found to be resistant to one or more cultures of stem rust. The background effect upon the expression of a gene was observed by comparing the range of infection on single gene host lines in either different backgrounds and/or in cultivars with known genes for stem rust resistance against the 12 cultures of stem rust races found in India.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00264522
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