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  • Baculovirus  (1)
  • DNA technology  (1)
  • Sahel  (1)
  • 1
    Digitale Medien
    Digitale Medien
    Amsterdam : Elsevier
    Biochimica et Biophysica Acta (BBA)/Gene Structure and Expression 1129 (1992), S. 328-330 
    ISSN: 0167-4781
    Schlagwort(e): Baculovirus ; BmNPVIEG ; Nuclear polyhediosis virus ; Transactivation
    Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Thema: Biologie , Chemie und Pharmazie , Medizin , Physik
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    ISSN: 1572-9680
    Schlagwort(e): long-term conservation ; Sahel ; seed collection
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: Abstract The International Centre for Research in Agroforestry (ICRAF) coordinates a research network in the Semi-arid Lowlands of West Africa (SALWA) in four countries: Burkina Faso, Niger, Mali and Senegal. Prosopis africana, an important agroforestry tree species is seriously threatened in this eco-region. ICRAF organized seed collections of this species for long-term conservation and subsequent utilization by small-scale farmers in the West African Sahel. Prior to the collection, ICRAF, the International Plant Genetic Resources Institute (IPGRI) and International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) organized a planning workshop with collaborating national research institutes. Out of this workshop came a consensus on the strategy, logistics and choice of collection sites. To collect as much genetic diversity of P. africana in the SALWA region as possible, 34 collection sites were selected: 15 in Niger, eight in Mali, seven in Burkina Faso and four in Senegal. The main aim of the collection was to capture the genetic diversity within P. africana before the valuable genetic resources are lost. This paper reviews the methodology and results of the germplasm collection.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Springer
    Genetic resources and crop evolution 44 (1997), S. 447-470 
    ISSN: 1573-5109
    Schlagwort(e): Africa ; crop evolution ; DNA technology ; genetic diversity ; genetic markers ; germplasm ; isozyme
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: Abstract A review of the existing literature available on the bibliographic CD-ROM PlantGeneCD on the use of protein and molecular markers on plant material from sub-Saharan Africa was undertaken. The review showed that these molecular techniques have been used in a wide range of studies, from measurement of genetic diversity within single population to the elucidation of phylogenetic relationship among species in a genus or group of genera. The review revealed that 67% of the 146 studies examined used protein electrophoresis (58% isozymes, the rest mostly seed proteins), 20% used RFLPs, 8% RAPDs and 3% sequencing. Isozymes have been used for a whole range of applications, whereas electrophoresis of other proteins has mainly been used to study ecogeographic distribution of diversity in crops. RAPDs have been used particularly in the investigation of genetic relationship among accessions of a single species and phylogentic relationship among species. RFLPs of cpDNA have mostly been used at the interspecific level and nuclear markers at the intraspecific level. The studies covered most of the major crop species of Africa and their wild relatives, though important gaps remain, for example sweet potato. So-called “minor” crops were not well represented. Wild taxa not related to crops were also covered, in particular agroforestry and forest species.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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