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  • 1
    Electronic Resource
    Electronic Resource
    Chromosomal location of Hwc2, one of the complementary hybrid weakness genes, in rice (2001)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 120 (2001), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: A hybrid weakness phenomenon is controlled by a set of complementary genes, Hwc1 (hybrid weakness c) and Hwc2, in rice. The Hwc2 gene is prevalent among temperate Japonica but not among tropical Japonica or Indica. In this study, the chromosomal location of the Hwc2 locus was determined from the segregation in the F1 hybrids made between 127 recombinant inbred lines and the cultivar ‘Jamaica’. Hwc2 was located between the two restriction fragment length polymorphism loci, XNpb264 and XNpb197 on chromosome 4. Further analysis indicated that Hwc2 was closely linked to Ph (phenol staining). The genetic and phylogenetic significance of the Hwc2 locus and the surrounding chromosomal region is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1439-0523.2001.00644.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    TheMagnaporthe grisea DNA fingerprinting probe MGR586 contains the 3′ end of an inverted repeat transposon (1996)
    Springer
    Molecular genetics and genomics 251 (1996), S. 675-681 
    Details
    ISSN: 1617-4623
    Keywords: Magnaporthe grisea ; Rice blast ; Repetitive DNA ; Transposable element
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract TheMagnaporthe grisea repeat (MGR) sequence MGR586 has been widely used for population studies of the rice blast fungus, and has enabled classification of the fungal population into hundreds of genetic lineages. While studying the distribution of MGR586 sequences in strains ofM. grisea, we discovered that the plasmid probe pCB586 contains a significant amount of single-copy DNA. To define precisely the boundary of the repetitive DNA in pCB586, this plasmid and four cosmid clones containing MGR586 were sequenced. Only 740 bp of one end of the 2.6-bp insert in the pCB586 plasmid was common to all clones. DNA sequence analysis of cosmid DNA revealed that all the cosmids contained common sequences beyond the cloning site in pCB586, indicating that the repetitive DNA in the fingerprinting clone is part of a larger element. The entire repetitive element was sequenced and found to resemble an inverted repeat transposon. This putative transposon is 1.86 kb in length and has perfect terminal repeats of 42 bp, which themselves contain direct repeats of 16 bp. The internal region of the transposon possesses one open reading frame which shows similarity at the peptide level to the Pot2 transposon fromM. grisea and Fot1 fromFusarium oxysporum. Hybridization studies using the entire element as a probe revealed that some strains ofM. grisea, whose DNA hybridized to the pCB586 probe, entirely lacked MGR586 transposon sequences.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02174116
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    The Magnaporthe grisea DNA fingerprinting probe MGR586 contains the 3′ end of an inverted repeat transposon (1996)
    Springer
    Molecular genetics and genomics 251 (1996), S. 675-681 
    Details
    ISSN: 1617-4623
    Keywords: Key words Magnaporthe grisea ; Rice blast ; Repetitive DNA ; Transposable element
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  The Magnaporthe grisea repeat (MGR) sequence MGR586 has been widely used for population studies of the rice blast fungus, and has enabled classification of the fungal population into hundreds of genetic lineages. While studying the distribution of MGR586 sequences in strains of M. grisea, we discovered that the plasmid probe pCB586 contains a significant amount of single-copy DNA. To define precisely the boundary of the repetitive DNA in pCB586, this plasmid and four cosmid clones containing MGR586 were sequenced. Only 740 bp of one end of the 2.6-bp insert in the pCB586 plasmid was common to all clones. DNA sequence analysis of cosmid DNA revealed that all the cosmids contained common sequences beyond the cloning site in pCB586, indicating that the repetitive DNA in the fingerprinting clone is part of a larger element. The entire repetitive element was sequenced and found to resemble an inverted repeat transposon. This putative transposon is 1.86 kb in length and has perfect terminal repeats of 42 bp, which themselves contain direct repeats of 16 bp. The internal region of the transposon possesses one open reading frame which shows similarity at the peptide level to the Pot2 transposon from M. grisea and Fot1 from Fusarium oxysporum. Hybridization studies using the entire element as a probe revealed that some strains of M. grisea, whose DNA hybridized to the pCB586 probe, entirely lacked MGR586 transposon sequences.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02174116
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Primary malignant lymphoma of the maxillary sinus: CT and MRI (2000)
    Springer
    Neuroradiology 42 (2000), S. 285-289 
    Details
    ISSN: 1432-1920
    Keywords: Key words Lymphoma ; malignant ; Sinus ; maxillary ; Magnetic resonance imaging ; Computed tomography.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We reviewed the CT and MRI of seven patients with primary malignant lymphoma of the maxillary sinus to find if there are characteristic imaging findings suggestive of the disease. The images were analysed for appearance, size, signal, internal characteristics, extent of tumour, bone change and lymph node enlargement. In two patients, the tumour first presented with mucosal thickening. In the remaining five, the tumours were an expansile mass 4–6 cm in diameter at the time of detection. Although it was difficult to distinguish tumour from mucosa or obstructed fluid on CT, T2-weighted MRI enabled us to separate tumour from normal mucosa or fluid. In two patients, the tumours were heterogeneous. Calcification and haemorrhage were observed in one patient. Periantral soft-tissue infiltration was always present, even when tumour appeared as slight mucosal thickening. Posterior extension was seen in all patients. Permeative and lytic bone destruction accompanied most cases of periantral soft-tissue infiltration; mixed destruction and sclerosis was also observed. Mucosal thickening with periantral soft-tissue infiltration may suggest malignant lymphoma of the maxillary sinus in its early form. Various types of bone change may accompany the periantral soft-tissue infiltration.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002340050887
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    Paper (German National Licenses)
    Fulltext
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