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  • 1
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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
    Evolution of the MIP family of integral membrane transport proteins (1991)
    Oxford, UK : Blackwell Publishing Ltd
    Molecular microbiology 5 (1991), S. 0 
    Details
    ISSN: 1365-2958
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: Six integral membrane proteins of bacterial, animal, and plant origin, which are believed to function in solute transport, share sequence identity and are grouped together as members of the MIP family. These include the Escherichia coli glycerol facilitator, the major intrinsic protein from bovine lens fibre junction membranes, a plant tonoplast membrane protein, a soybean protein from the peribacteroid membrane, and a Drosophila neurogenic protein. These proteins, each of which appears to consist of six transmembrane helical segments per subunit, apparently arose by internal duplication of a three-transmembrane segment. Phylogenetic‘trees’interrelating these proteins and segments are presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2958.1991.tb01823.x
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  • 3
    Electronic Resource
    Electronic Resource
    Long-range organization of a satellite DNA family flanking the beet cyst nematode resistance locus (Hs1) on chromosome-1 of B. patellaris and B. procumbens (1994)
    Springer
    Theoretical and applied genetics 89 (1994), S. 459-466 
    Details
    ISSN: 1432-2242
    Keywords: Molecular markers Beet cyst nematode resistance ; Hs1 Heterodera schachtii Schm ; Satellite DNA Monosomic fragment additions Beta ; Pulsed-field gel electrophoresis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract New members of a satellite DNA family (Sat 121), specific for wild beets of the section Procumbentes of the genus Beta, were isolated. Sequence analysis showed that the members of Sat-121 fall into two distinct classes. The organization of Sat-121 in the vicinity of a beet cyst nematode (Heterodera schachtii Schm.) resistance locus (Hs1) in B. patellaris and B. procumbens was investigated by pulsed-field gel electrophoresis (PFGE) using DNA from a series of resistant monosomic fragment additions, each containing an extra chromosome fragment of B. patellaris chromosome-1 (pat-1) in B. vulgaris. In this way several clusters of Sat-121 flanking the Hs1 pat-1 locus were identified. In nematode resistant diploid introgressions (2n=18), which contain small segments of B. procumbens chromosome-1 (pro-1) in B. vulgaris, only two major Sat-121 clusters were detected near the Hs1 pro-1 locus.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00225381
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  • 4
    Electronic Resource
    Electronic Resource
    Isolation of DNA markers linked to a beet cyst nematode resistance locus in Beta patellaris and Beta procumbens (1992)
    Springer
    Molecular genetics and genomics 235 (1992), S. 432-440 
    Details
    ISSN: 1617-4623
    Keywords: Heterodera schachtii ; Beta vulgaris ; Monosomic additions ; Molecular markers ; Disease resistance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary In cultivated beet no useful level of resistance of the beet cyst nematode (BCN) Heterodera schachtii Schm. has been found, unlike the situation in wild species of the section Procumbentes. Stable introgression of resistance genes from the wild species into Beta vulgaris has not been achieved, but resistant monosomic additions (2n =18 + 1), diploids of B. vulgaris with an extra alien chromosome carrying the resistance locus, have been obtained. Here we describe a new series of resistant monosomic fragment addition material of B. patellaris chromosome 1 (pat-1). We further describe the cloning of a single-copy DNA marker that specifically hybridizes with a monosomic addition fragment of approximately 8 Mb (AN5-90) carrying the BCN resistance locus. This marker and another fragment-specific, single-copy DNA marker probably flank the BCN locus on the addition fragment present in the AN5-203 material, which is approximately 19 Mb in size. Furthermore, several specific repetitive DNA markers have been isolated, one of which hybridizes to AN5-90 and also to DNA from a smaller DNA segment of Beta procumbens, present in line B883, carrying a BCN resistance locus introgressed into the B. vulgaris genome. This suggests that the specific repetitive marker is closely linked to the BCN locus.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00279390
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