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  • 1
    Electronic Resource
    Electronic Resource
    Organization of repeated sequences in species of the genus Avena (1992)
    Springer
    Theoretical and applied genetics 83 (1992), S. 602-607 
    Details
    ISSN: 1432-2242
    Keywords: Repetitive sequences ; Avena ; Oats
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Four repetitive sequences from Avena murphyi have been isolated and their genome organization studied in different species of the genus Avena. A tandem sequence array was found for the Avena species that contain the C genome. Three other dispersed sequences present in the A and C genomes were arranged in a genomespecific manner. The fact that no major differences in the hybridization patterns were found between species with the same basic genome is consistent with the current taxonomy of Avena species.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00226904
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  • 2
    Electronic Resource
    Electronic Resource
    The meiotic pairing of nine wheat chromosomes (1984)
    Springer
    Theoretical and applied genetics 69 (1984), S. 193-198 
    Details
    ISSN: 1432-2242
    Keywords: C-banding ; Heterochromatin ; Meiosis ; Common wheat ; Triticum aestivum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The meiotic identification of nine pairs of chromosomes at metaphase I of meiosis of Triticum aestivum (B genome, 4A and 7A) has been achieved using a Giemsa C-banding technique. As a result, the analysis of the pairing of each chromosome arm in disomic and monosomic intervarietal hybrids between ‘Chinese Spring’ and the Spanish cultivar ‘Pané 247’ could be carried out. Differences in the chiasmata frequencies per chromosome arm cannot be explained on the basis of relative arm lengths only. Possible effects of arm-to-arm heterochromatic differences on meiotic pairing are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00272894
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  • 3
    Electronic Resource
    Electronic Resource
    A molecular linkage map of rye (1996)
    Springer
    Theoretical and applied genetics 93 (1996), S. 1112-1118 
    Details
    ISSN: 1432-2242
    Keywords: Genetic map ; RFLP ; RAPD ; Secale cereale ; Triticum aestivum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A genetic map of six chromosomes of rye, (all of the rye chromosomes except for 2R), was constructed using 77 RFLP and 12 RAPD markers. The map was developed using an F2 population of 54 plants from a cross between two inbred lines. A rye genomic library was constructed as a source of clones for RFLP mapping. Comparisons were made between the rye map and other rye and wheat maps by including additional probes previously mapped in those species. These comparisons allowed (1) chromosome arm orientation to the linkage groups to be given, (2) the corroboration of several evolutionary translocations between rye chromosomes and homoeologous chromosomes of wheat; (3) an increase in the number of available markers for target regions of rye that show colinearity with wheat. Inconsistencies in the location of markers between the wheat and rye maps were mostly detected by multi-copy probes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00230133
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  • 4
    Electronic Resource
    Electronic Resource
    A molecular linkage map of rye (1996)
    Springer
    Theoretical and applied genetics 93 (1996), S. 1112-1118 
    Details
    ISSN: 1432-2242
    Keywords: Key words Genetic map ; RFLP ; RAPD ; Secale cereale ; Triticum aestivum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A genetic map of six chromosomes of rye, (all of the rye chromosomes except for 2R), was constructed using 77 RFLP and 12 RAPD markers. The map was developed using an F2 population of 54 plants from a cross between two inbred lines. A rye genomic library was constructed as a source of clones for RFLP mapping. Comparisons were made between the rye map and other rye and wheat maps by including additional probes previously mapped in those species. These comparisons allowed (1) chromosome arm orientation to the linkage groups to be given, (2) the corroboration of several evolutionary translocations between rye chromosomes and homoeologous chromosomes of wheat; (3) an increase in the number of available markers for target regions of rye that show colinearity with wheat. Inconsistencies in the location of markers between the wheat and rye maps were mostly detected by multi-copy probes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001220050343
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  • 5
    Electronic Resource
    Electronic Resource
    Partial asynapsis involving specific chromosomes in intervarietal hybrids of Triticum aestivum L. (1986)
    Springer
    Euphytica 35 (1986), S. 529-537 
    Details
    ISSN: 1573-5060
    Keywords: Triticum aestivum ; common wheat ; C-banding ; heterochromatin ; monosomics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Metaphase I chromosome association of the monosomic F1 and the backcross progenies made to develop a monosomic line in the Spanish common wheat Pané-247 was analyzed using a Giemsa C-banding technique. This permits the unequivocal identification of nine meiotic chromosomes (4A, 7A and the seven chromosomes of the B genome). The average frequencies of pairing per arm and of univalents for these nine pairs per arm and of univalents for these nine pairs indicate a difference between arms. The F1 showed asynapsis with univalents in 18.5 per cent of PMC's in intervarietal hybrids. This mainly involved chromosomes 4A, 1B and 6B which also have the largest amount of constitutive heterochromatin. The possible causes of reduced metaphase I association and its rapid decrease during backcrossing are discussed in relation to polymorphism between heterozygous homologous chromosomes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00021862
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