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  • Cell & Developmental Biology  (3)
  • Key words Apple  (2)
  • ^7Li(polarized p, α), E = 0.8-3.0 MeV; measured σ (E;θ); deduced  (2)
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  • 1
    Digitale Medien
    Digitale Medien
    ^7Li(p, α)^4He reaction with polarized protons from 0.8 to 3 MeV
    Amsterdam : Elsevier
    Nuclear Physics, Section A 111 (1968), S. 177-183 
    Details
    ISSN: 0375-9474
    Schlagwort(e): Natural target ; ^7Li(polarized p, α), E = 0.8-3.0 MeV; measured σ (E;θ); deduced
    Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Thema: Physik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1016/S0375-9474(68)90678-7
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  • 2
    Digitale Medien
    Digitale Medien
    ^7Li(p, α)^4He reaction with polarized protons from 0.8 to 3 MeV
    Amsterdam : Elsevier
    Nuclear Physics, Section A 111 (1968), S. 177-183 
    Details
    ISSN: 0375-9474
    Schlagwort(e): Natural target ; ^7Li(polarized p, α), E = 0.8-3.0 MeV; measured σ (E;θ); deduced
    Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Thema: Physik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1016/S0375-9474(68)90678-7
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  • 3
    Digitale Medien
    Digitale Medien
    Introgression of the Vf source of scab resistance and distribution of linked marker alleles within the Malus gene pool (1999)
    Springer
    Theoretical and applied genetics 99 (1999), S. 1039-1046 
    Details
    ISSN: 1432-2242
    Schlagwort(e): Key words Apple ; Scab resistance ; Introgression ; Vf gene ; DNA markers ; Linkage
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract  A chromosomal region originating from Malus floribunda 821 confers Vf scab resistance to many isolates of Venturia inaequalis. Twelve DNA markers located in this region were used to scan the equivalent of 31 cM in 98 Malus accessions. This allowed a molecular diagnosis of a source of resistance in apple germplasm with the aid of pedigree information, and in the context of a limited marker survey representing other chromosomes. At least five marker alleles were present in all scab-resistant breeding selections or varieties arising from M. floribunda. The validity of findings based on RAPD markers was confirmed with SCAR assays and Southern-hybridisation experiments. The order of markers determined in previous mapping studies was confirmed and sets of recombinants identified that establish reliable fine-mapping orders within 0.7 cM of the resistance locus. None of the marker alleles were present in the accessions that are either susceptible or possess weak polygenic resistance to scab. The presence of some alleles corresponding to those present at least 5.3 cM from Vf in M. floribunda was detected in some accessions. Other major sources of scab resistance do not appear to possess alleles in common with the Vf region, which will simplify future allelism tests. The results are discussed in the context of the introgression of resistance loci together with marker-assisted selection. The use of breeding pedigrees to assist in fine-scale mapping and map-based cloning is discussed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/s001220051412
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  • 4
    Digitale Medien
    Digitale Medien
    RFLP and RAPD markers linked to the rosy leaf curling aphid resistance gene (Sd1) in apple (1997)
    Springer
    Theoretical and applied genetics 94 (1997), S. 528-533 
    Details
    ISSN: 1432-2242
    Schlagwort(e): Key words Apple ; Dysaphis devecta ; Insect resistance ; Marker-assisted selection ; Molecular markers ; Plant breeding
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract  Sd 1 is a dominant gene for resistance to biotypes 1 and 2 of the rosy leaf curling aphid, Dysaphis devecta Wlk., which can cause economic damage to apple trees. This report describes the identification of three RFLP and four RAPD markers linked to Sd 1 in a cross between the D. devecta susceptible variety ‘Prima’ (sd 1 sd 1) and the resistant variety ‘Fiesta’ (Sd 1 sd 1). Potted trees were artificially infested in the glasshouse, and the ratio of resistant:susceptible plants supported the hypothesis that the resistance was under the control of a single dominant gene. The position of the gene was mapped to a single locus on a ‘Fiesta’ chromosome, within 2 cM of three tightly linked RFLP markers (MC064a, 2B12a and MC029b); the four RAPD markers were located further away (between 13 and 46 cM). This is the first report of molecular markers for an aphid resistance gene in tree fruit crops. The potential application of these markers in a marker-assisted resistance breeding programme is discussed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/s001220050447
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  • 5
    Digitale Medien
    Digitale Medien
    Microscopy in solid state science (1993)
    New York, NY [u.a.] : Wiley-Blackwell
    Microscopy Research and Technique 24 (1993), S. 299-315 
    Details
    ISSN: 1059-910X
    Schlagwort(e): STEM ; PEELS ; HAADFI ; Nanolithography ; Super-resolution ; STM ; Life and Medical Sciences ; Cell & Developmental Biology
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Allgemeine Naturwissenschaft
    Notizen: The Microstructural Physics group at the Cavendish Laboratory is actively involved in a considerable number of research projects which cover a broad range of materials science. In this paper, we describe briefly several such projects, with particular emphasis given to the application of parallel-detection electron energy loss spectroscopy (PEELS) on a scanning transmission electron microscope (STEM) to the analysis of materials such as stainless steels, catalysts, and high temperature superconductors. In addition, we describe a number of related projects that are currently being carried out in the group, particularly those which utilise and develop novel STEM imaging and analytical techniques. © 1993 Wiley-Liss, Inc.
    Zusätzliches Material: 19 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/jemt.1070240404
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  • 6
    Digitale Medien
    Digitale Medien
    Amorphisation of MgO single crystal specimens prepared by ion milling for transmission electron microscopy studies (1990)
    New York, NY : Wiley-Blackwell
    Journal of Electron Microscopy Technique 15 (1990), S. 377-382 
    Details
    ISSN: 0741-0581
    Schlagwort(e): Vickers indentations ; Magnesium oxide ; Life and Medical Sciences ; Cell & Developmental Biology
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Allgemeine Naturwissenschaft
    Notizen: Single crystal MgO specimens having low load Vickers indentations were thinned in an ion milling machine employing a single ion gun, and their characteristics were investigated with optical microscopy and high voltage electron microscopy (HVEM). It was found that the state of cleanliness of the specimen chamber of the ion milling machine had a very marked influence on the quality of the thinned specimens. If the specimen chamber was not well cleaned before ion milling a fresh specimen, the latter tended to show amorphisation due to the deposition on the specimen of the debris left in the chamber from the previously ion-milled specimens. Such observations were made from MgO specimens ion milled in several different types of commercial ion milling machine employing a single gun. It is proposed that to obtain good-quality ion milled TEM specimens, it is important to clean the specimen chamber thoroughly prior to milling.
    Zusätzliches Material: 4 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/jemt.1060150407
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  • 7
    Digitale Medien
    Digitale Medien
    Culture of in vitro fertilized rabbit ova (1988)
    New York, NY : Wiley-Blackwell
    Gamete Research 20 (1988), S. 431-436 
    Details
    ISSN: 0148-7280
    Schlagwort(e): oocytes ; embryo culture ; in-vitro fertilization ; Life and Medical Sciences ; Cell & Developmental Biology
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Biologie
    Notizen: Embryonic development of in-vitro fertilized rabbit ova was assessed following in-vitro culture in four different serum supplemented media. A mixture of Basal Medium Eagle (BME) and Ham's F10 medium (1:1) provided better support for in-vitro development than Ham's F10, BME, or regular acidic saline (RAS). In-vitro embryonic development in the BME/Ham's F10 mixture was synchronous with in-vivo development through at least 55 hr of culture. After 54 hr of culture, embryos transferred to the oviduct of a synchronous pseudopregnant recipient were able to implant at the same rate as simultaneously transferred embryos grown in vivo. BME/Ham's F10 supplemented with 10% newborn calf serum was highly supportive of rabbit embryo development following in-vitro fertilization.
    Zusätzliches Material: 1 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/mrd.1120200405
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