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  • Hessian fly  (2)
  • 21.60.Ev  (1)
  • Amputation level  (1)
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  • 1
    Digitale Medien
    Digitale Medien
    Springer
    Theoretical and applied genetics 94 (1997), S. 419-423 
    ISSN: 1432-2242
    Schlagwort(e): Key words Wheat ; RAPD ; Marker-assisted selection ; Hessian fly
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract  The pyramiding of genes that confer race- or biotype-specific resistance has become increasingly attractive as a breeding strategy now that DNA-based marker-assisted selection is feasible. Our objective here was to identify DNA markers closely linked to genes in wheat (Triticum aestivum L.) that condition resistance to Hessian fly [Mayetiola destructor (Say)]. We used a set of near-isogenic wheat lines, each carrying a resistance gene at 1 of 11 loci (H3, H5, H6, H9, H10, H11, H12, H13, H14, H16 or H17) and developed by backcrossing to the Hessian fly-susceptible wheat cultivar ‘Newton’. Using genomic DNA of these 11 lines and ‘Newton’, we have identified 18 randomly amplified polymorphic DNA (RAPD) markers linked to the 11 resistance genes. Seven of these markers were identified by denaturing gradient gel electrophoresis and the others by agarose gel electrophoresis. We confirmed linkage to the Hessian fly resistance loci by cosegregation analysis in F2 populations of 50–120 plants for each different gene. Several of the DNA markers were used to determine the presence/absence of specific Hessian fly resistance genes in resistant wheat lines that have 1 or possibly multiple genes for resistance. The use of RAPD markers presents a valuable strategy for selection of single and combined Hessian fly resistance genes in wheat improvement.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Springer
    Theoretical and applied genetics 89 (1994), S. 964-968 
    ISSN: 1432-2242
    Schlagwort(e): RAPD ; Wheat ; Hessian fly ; DNA markers
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract The Hessian fly [Mayetiola destructor (Say)] is a major pest of wheat (Triticum aestivum L.) and genetic resistance has been used effectively over the past 30 years to protect wheat against serious damage by the fly. To-date, 25 Hessian fly resistance genes, designated H1 to H25, have been identified in wheat. With near-isogenic wheat lines differing for the presence of an individual Hessian fly resistance gene, in conjunction with random amplified polymorphic DNA (RAPD) analysis and denaturing gradient-gel electrophoresis (DGGE), we have identified a DNA marker associated with the H9 resistance gene. The H9 gene confers resistance against biotype L of the Hessian fly, the most virulent biotype. The RAPD marker cosegregates with resistance in a segregating F2 population, remains associated with H9 resistance in a number of different T. aestivum and T. durum L. genetic backgrounds, and is readily detected by either DGGE or DNA gel-blot hybridization.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Springer
    The European physical journal 337 (1990), S. 149-159 
    ISSN: 1434-601X
    Schlagwort(e): 23.20.Lv ; 21.60.Ev ; 23.20.−g
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract A band with a rotational pattern based on a state at 585.1 keV has been identified in theN=59 neutron-rich nucleus97Sr. Its properties lead to the [422] 3/2 Nilsson-orbital assignment for the band head. There is evidence for a second band with the head at 644.7 keV and the configuration [541] 3/2. Since the ground state and the lowest excited levels are spherical, shape coexistence is established for97Sr. A deformed nature of several levels at 500–600 keV results also from QRPA-model calculations. The structure of the low-lying spherical levels has been studied in the frame of the IBF model. The results of the present investigations lead to a better understanding of theN=59 isotones which constitute the link between the spherical and deformed nuclei atA∼100 as a species with shape coexistence but without any indications of particular softness.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 4
    Digitale Medien
    Digitale Medien
    Springer
    Langenbeck's archives of surgery 355 (1981), S. 519-519 
    ISSN: 1435-2451
    Schlagwort(e): Arterial occlusive disease ; Amputation level ; Arterielle Verschlußkrankheiten ; Amputationshöhe
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Beschreibung / Inhaltsverzeichnis: Zusammenfassung Die Amputationsháhe bei schwerer arterieller Verschlußkrankheit der Beine ist umstritten. Wir berichten über 230 Amputationen an der unteren Extremität bei 197 Patienten in den Jahren 1978–1980. 40% wurden distal des Kniegelenkes durchgeführt, davon konnten 72% zur Abheilung gebracht werden. 28% mußten nachamputiert werden (31% der Zehenamputationen, 22% der Mittelfußamputationen, 28% der Unterschenkelamputationen). Wegen der Vorteile bei der Rehabilitation sollte statt der grundsätzlichen Oberschenkelamputation eine möglichst periphere Amputation versucht und das Risiko einer Nachamputation in Kauf genommen werden.
    Notizen: Summary The level of amputations for arterial occlusive disease of the leg is often discussed. We reviewed 230 amputations at the lower extremity performed on 197 patients during the years 1978–1980: 40% were distal to the knee joint, 72% of which healed; 28% had to be reamputated at a more proximal level (31% of the toe amputations, 22% of the metatarsal or transmetatarsal amputations, and 28% of the below knee-amputations). Instead of general above-knee amputation, a more distal amputation should be tried.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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