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    Positional cloning of a gene for nematode resistance in sugar beet (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-02-07
    Description: The Hs1(pro-1) locus confers resistance to the beet cyst nematode (Heterodera schachtii Schmidt), a major pest in the cultivation of sugar beet (Beta vulgaris L.). The Hs1(pro-1) gene was cloned with the use of genome-specific satellite markers and chromosomal break-point analysis. Expression of the corresponding complementary DNA in a susceptible sugar beet conferred resistance to infection with the beet cyst nematode. The native Hs1(pro-1) gene, expressed in roots, encodes a 282-amino acid protein with imperfect leucine-rich repeats and a putative membrane-spanning segment, features similar to those of disease resistance genes previously cloned from higher plants.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cai, D -- Kleine, M -- Kifle, S -- Harloff, H J -- Sandal, N N -- Marcker, K A -- Klein-Lankhorst, R M -- Salentijn, E M -- Lange, W -- Stiekema, W J -- Wyss, U -- Grundler, F M -- Jung, C -- New York, N.Y. -- Science. 1997 Feb 7;275(5301):832-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Crop Science and Plant Breeding, Christian-Albrechts-University of Kiel, Olshausenstrasse 40, D-24118 Kiel, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9012350" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Cell Membrane/chemistry ; *Cloning, Molecular ; DNA, Complementary/genetics ; *Genes, Plant ; Genetic Complementation Test ; Leucine/chemistry ; Membrane Proteins/chemistry/*genetics/physiology ; Molecular Sequence Data ; Nematoda/*pathogenicity ; Plant Diseases/*genetics/parasitology ; *Plant Proteins ; Plant Roots/genetics/parasitology ; Transformation, Genetic ; Vegetables/*genetics/*parasitology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
    Electronic Resource
    Electronic Resource
    An improved transformation protocol for studying gene expression in hairy roots of sugar beet (Beta vulgaris L.) (1999)
    Springer
    Plant cell reports 18 (1999), S. 514-519 
    Details
    ISSN: 1432-203X
    Keywords: Key wordsBeta vulgaris ; Agrobacterium rhizogenes ; Transformation ; Co-inoculation ; Hairy roots
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A transformation protocol, based on co-inoculation with two strains of Agrobacterium, Agrobacterium tumefaciens LBA4404 and A. rhizogenes 15834 containing a binary vector with the GUS gene, was established for the induction of transgenic hairy roots from sugar beet (Beta vulgaris L.) explants. It resulted in marked improvement in the formation of hairy roots and the integration of the binary vector T-DNA into the host genome. Of 250 inoculated sugar beet hypocotyls, 84% yielded hairy roots 5–7 days after inoculation, of which 70% were co-transformed with the binary vector T-DNA. To determine stable expression of alien genes in hairy roots, the nematode resistance gene Hs1 pro-1 was used as a reporter gene. In addition, molecular marker analysis was applied to monitor stable incorporation of a translocation from the wild beet B. procumbens. The molecular analysis and the nematode (Heterodera schachtii) resistance test in vitro demonstrated that the genomic structure and the expression of the Hs1 pro-1 -mediated nematode resistance were well-maintained in all hairy root cultures even after repeated sub-culture.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002990050614
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