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  • Hydrozoa  (3)
  • Gametophytic selection  (2)
  • 1995-1999  (5)
  • 1980-1984
  • 1996  (5)
Collection
Keywords
Publisher
Years
  • 1995-1999  (5)
  • 1980-1984
Year
  • 1
    Electronic Resource
    Electronic Resource
    Identification of genetic factors for alachlor tolerance in maize by molecular markers analysis (1996)
    Springer
    Molecular genetics and genomics 251 (1996), S. 551-555 
    Details
    ISSN: 1617-4623
    Keywords: Key words Maize ; Herbicide ; Molecularmarkers ; Gametophytic selection ; Linkage analysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  Genetic factors controlling tolerance to the herbicide Alachlor in maize were localised by means of two different strategies. In the first approach, backcross (BC) plants, derived from pollen which had been subjected to selective pressure for resistance to the herbicide, were analysed for segregation distortion at 47 RFLP loci and compared to BC plants obtained from non-selected pollen. Preferential transmission of five chromosomal regions where putative QTLs (Quantitative Trait Loci) are localised was revealed in the BC plants from selected pollen. A second approach was based on a classical linkage analysis for segregation of the same set of RFLPs and factors controlling the trait, in a BC population of 210 individuals, by means of regression analysis. This study detected seven significant loci in four genomic regions. Overall, two loci revealed both segregation distortion and association with the expression of the trait, indicating linkage to genes expressed in both gametophytic and sporophytic phase. Three chromosomal regions appeared to carry factors involved in plant tolerance to Alachlor which are not expressed in pollen. Conversely, three loci were linked to factors selectable in pollen, but did not reveal significant association with tolerance in the plant in the segregating populations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02173644
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Identification of genetic factors for alachlor tolerance in maize by molecular markers analysis (1996)
    Springer
    Molecular genetics and genomics 251 (1996), S. 551-555 
    Details
    ISSN: 1617-4623
    Keywords: Maize ; Herbicide ; Molecular markers ; Gametophytic selection ; Linkage analysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Genetic factors controlling tolerance to the herbicide Alachlor in maize were localised by means of two different strategies. In the first approach, backcross (BC) plants, derived from pollen which had been subjected to selective pressure for resistance to the herbicide, were analysed for segregation distortion at 47 RFLP loci and compared to BC plants obtained from non-selected pollen. Preferential transmission of five chromosomal regions where putative QTLs (Quantitative Trait Loci) are localised was revealed in the BC plants from selected pollen. A second approach was based on a classical linkage analysis for segregation of the same set of RFLPs and factors controlling the trait, in a BC population of 210 individuals, by means of regression analysis. This study detected seven significant loci in four genomic regions. Overall, two loci revealed both segregation distortion and association with the expression of the trait, indicating linkage to genes expressed in both gametophytic and sporophytic phase. Three chromosomal regions appeared to carry factors involved in plant tolerance to Alachlor which are not expressed in pollen. Conversely, three loci were linked to factors selectable in pollen, but did not reveal significant association with tolerance in the plant in the segregating populations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02173644
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    Paper (German National Licenses)
    Fulltext
  • 3
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    Unknown
    Redescription of Schizotricha anderssoni Jaderholm, 1904 (Cnidaria: Hydrozoa) with the description of a new species. Notes on antarctic hydroids, 4 (1996)
    In:  Zoologische Mededelingen vol. 70 no. 14, pp. 217-226
    Details
    Publication Date: 2024-01-12
    Description: The type series of Schizotricha anderssoni J\xc3\xa4derhoim, 1904, collected by the Swedish Antarctic Expedition 1901-1903 and deposited in the collections of the Swedisch National Museum, Stockholm, is redescribed. The type series is composed of two species, the species figured by J\xc3\xa4derhoim (1905) is designated the lectotype of Schizotricha anderssoni. The second species, differing from the other species of the genus, is described as Schizotricha jaederholmi spec. nov.
    Keywords: Cnidaria ; Hydrozoa ; hydroids ; Schizotricha ; new species ; Antarctic
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
    Format: application/pdf
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  • 4
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    Unknown
    On two new species of Oswaldella Stechow, 1919: O. terranovae spec. nov. and O. tottoni spec. nov. (Cnidaria: Hydrozoa). Notes on Antarctic hydroids, III (1996)
    In:  Zoologische Mededelingen vol. 70 no. 8, pp. 135-143
    Details
    Publication Date: 2024-01-12
    Description: The material assigned by Totton (1930) to Oswaldella antarctica (Jaderholm, 1904) and O. bifurca (Hartlaub, 1904) has been re-examined and redescribed. This material shows such important differences with Hartlaub\'s and J\xc3\xa4derholm\'s species and the remaining species of Oswaldella that they are here considered as two new species: O. terranovae spec. nov. and O. tottoni spec, nov., respectively.
    Keywords: Cnidaria ; Hydrozoa ; hydroids ; Oswaldella ; new species ; Antarctic
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 5
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    Unknown
    Species of Schizotricha Allman, 1883 (Cnidaria, Hydrozoa) from recent antarctic expeditions with R.V. \'Polarstern\', with the description of a new species (1996)
    In:  Zoologische Mededelingen vol. 70 no. 28, pp. 411-435
    Details
    Publication Date: 2024-01-12
    Description: Five species of the genus Schizotricha Allman, 1883, one of which is new to science, have been studied.\nThe material originates from the Weddell Sea region and from off Elephant Island and it was collected during several antarctic expeditions with the R.V. Tolarstern\'. Each species is described and figured and its systematic position among allied species discussed. The type material of Schizotricha glacialis (Hickson & Gravely, 1907) and S. turqueti Billard, 1906 has been re-examined and is also described and figured.
    Keywords: Cnidaria ; Hydrozoa ; hydroids ; Schizotricha ; Antarctic ; re-description of species ; new records ; new species
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
    Format: application/pdf
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