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  • 11
    Electronic Resource
    Electronic Resource
    Preparation of superconducting LiTi"2O"4 thin films
    Amsterdam : Elsevier
    Thin Solid Films 94 (1982), S. 47-50 
    Details
    ISSN: 0040-6090
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0040-6090(82)90028-1
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  • 12
    Electronic Resource
    Electronic Resource
    Serum concentrations of advanced glycation endproducts are associated with the development of atherosclerosis as well as diabetic microangiopathy in patients with type 2 diabetes (2000)
    Springer
    Acta diabetologica 37 (2000), S. 87-92 
    Details
    ISSN: 1432-5233
    Keywords: Key words AGEs ; Glycation ; Atherosclerosis ; HbA1c ; Albuminuria
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We measured serum concentrations of advanced glycation endproducts (AGEs) in patients with type 2 diabetes, to elucidate the mechanisms underlying the elevated serum concentrations of AGEs and to clarify the relationship between serum AGE concentrations and the development of microangiography and macroangiopathy. Serum AGEs were significantly higher in diabetic patients than in age-matched control subjects (p 〈 0.0001). In diabetic patients, serum AGEs were positively correlated with HbA1c (r = 0.47, p 〈 0.0001), urinary albumin excretion (UAE) (r = 0.42, p 〈 0.0001), diabetes duration (r = 0.31, p = 0.0030), and fasting plasma glucose (r = 0.34, p = 0.0010). Multiple regression analysis disclosed that only the HbA1c and UAE levels independently correlated with serum AGE levels. Serum AGEs in diabetic patients with progressive retinopathy and overt nephropathy were significantly higher than in those with less severe retinopathy and nephropathy. Serum AGEs were significantly higher in the diabetic patients with coronary heart disease (CHD) than in those without CHD. These results suggest that the HbA1c and UAE levels are independent risk factors for increased serum AGE concentrations in type 2 diabetic patients, and that higher serum AGE concentrations are associated with increased severity of diabetic retinopathy and nephropathy. Serum AGE concentrations may be a useful marker not only for the severity of diabetic microangiopathy but also for the development of CHD in patients with type 2 diabetes mellitus.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s005920070025
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  • 13
    Electronic Resource
    Electronic Resource
    Development of pre-isogenic lines for rice blast-resistance by marker-aided selection from a recombinant inbred population (1996)
    Springer
    Theoretical and applied genetics 93 (1996), S. 560-567 
    Details
    ISSN: 1432-2242
    Keywords: Disease resistance ; Rice blast ; RFLPs ; Recombinant inbred lines ; Pre-isogenic lines
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract To increase the available set of near-isogenic lines (NILs) for blast-resistance in rice, we have developed a general method for establishing NILs from populations of fixed recombinants that have been used for gene mapping. We demonstrated the application of this method by the selection of lines carrying genes from the rice cultivar Moroberekan. Moroberekan is a West African japonica cultivar that is considered to have durable resistance to rice blast. Multiple genes from Moroberekan conferring complete and partial resistance to blast have previously been mapped using a recombinant inbred (RI) population derived from a cross between Moroberekan and the highly and broadly susceptible indica cultivar CO39. To analyze individual blast-resistance genes, it is desirable to transfer them individually into a susceptible genetic background. This RI population, and the associated data sets on blast reaction and restriction fragment length polymorphism (RFLP) genotypes, were used for selection of lines likely to carry individual blast-resistance genes and a minimum number of chromosomal segments from Moroberekan. Because skewed segregation in the RI population favored CO39 (indica) alleles, resistant lines carrying 8.7–17.5% of Moroberekan alleles (the proportion expected after two or three backcrosses) could be selected. We chose three RI lines carrying different complete resistance genes to blast and two RI lines carrying partial resistance genes to blast as potential parents for the development of NILs. These lines were subjected to genetic analysis, which allowed clarification of some issues that could not be resolved during the initial gene-mapping study.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00417948
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  • 14
    Electronic Resource
    Electronic Resource
    Development of pre-isogenic lines for rice blast-resistance by marker-aided selection from a recombinant inbred population (1996)
    Springer
    Theoretical and applied genetics 93 (1996), S. 560-567 
    Details
    ISSN: 1432-2242
    Keywords: Key words Disease resistance ; Rice blast ; RFLPs ; Recombinant inbred lines ; Pre-isogenic lines
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract To increase the available set of near-isogenic lines (NILs) for blast-resistance in rice, we have developed a general method for establishing NILs from populations of fixed recombinants that have been used for gene mapping. We demonstrated the application of this method by the selection of lines carrying genes from the rice cultivar Moroberekan. Moroberekan is a West African japonica cultivar that is considered to have durable resistance to rice blast. Multiple genes from Moroberekan conferring complete and partial resistance to blast have previously been mapped using a recombinant inbred (RI) population derived from a cross between Moroberekan and the highly and broadly susceptible indica cultivar CO39. To analyze individual blast-resistance genes, it is desirable to transfer them individually into a susceptible genetic background. This RI population, and the associated data sets on blast reaction and restriction fragment length polymorphism (RFLP) genotypes, were used for selection of lines likely to carry individual blast-resistance genes and a minimum number of chromosomal segments from Moroberekan. Because skewed segregation in the RI population favored CO39 (indica) alleles, resistant lines carrying 8.7–17.5% of Moroberekan alleles (the proportion expected after two or three backcrosses) could be selected. We chose three RI lines carrying different complete resistance genes to blast and two RI lines carrying partial resistance genes to blast as potential parents for the development of NILs. These lines were subjected to genetic analysis, which allowed clarification of some issues that could not be resolved during the initial gene-mapping study.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001220050315
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  • 15
    Electronic Resource
    Electronic Resource
    Molecular mapping of the blast resistance gene, Pi44(t), in a line derived from a durably resistant rice cultivar (1999)
    Springer
    Theoretical and applied genetics 98 (1999), S. 1046-1053 
    Details
    ISSN: 1432-2242
    Keywords: Key words Disease resistance ; Rice (Oryza sativa L.) ; Rice blast (Pyricularia oryzae Cav.; Pyricularia grisea Sacc.; Magnaporthe grisea) ; Amplifiedfragment length polymorphism (AFLP) ; Sequence tagged site (STS) ; Gene mapping
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  A recombinant inbred line derived from a cross between CO39 and ‘Moroberekan’, RIL276, was found to be resistant to lineage 44 isolates of Pyricularia grisea in the Philippines. One hundred F2 individuals were obtained from a backcross of RIL276 and CO39. Phenotypic analysis showed that RIL276 carries a single locus, tentatively named Pi44(t), conferring complete resistance to lineage 44 isolates of P. grisea. RFLP probes, STS primers and AFLP markers were applied to identify DNA markers linked to Pi44(t). Neither RFLP nor STS-PCR analysis gave rise to DNA markers linked to the locus. Using bulk segregant AFLP analysis, however, two dominant AFLP markers (AF348 and AF349) linked to Pi44(t) were identified. AF349 and AF348 were located at 3.3±1.5 cM and 11±3.5 cM from Pi44(t), respectively. These markers were mapped on chromosome 11 using an F2 population derived from a cross between ‘Labelle’ and ‘Black Gora’. The location of AF348 on chromosome 11 was confirmed using another F2 mapping population derived from IR40931-26-3-3-5/ PI543851. DNA products at the loci linked to Pi44(t) were amplified from RIL276, ‘Labelle’ and PI543851 using the same primer pairs used to amplify AF349 and AF348. Sequence analysis of these bands showed 100% identity between lines. This result indicates that these AFLP markers could be used for the comparison of maps or assignment of linkage groups to chromosomes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001220051166
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  • 16
    Electronic Resource
    Electronic Resource
    Dissection of a major QTL for photoperiod sensitivity in rice: its association with a gene expressed in an age-dependent manner (1998)
    Springer
    Theoretical and applied genetics 97 (1998), S. 714-720 
    Details
    ISSN: 1432-2242
    Keywords: Key words Oryza sativa L. ; Photoperiod-sensitivity genes ; Quantitative traits ; Gene complex ; Wild rice
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  A proposed major quantitative trait locus (QTL) for photoperiod sensitivity on chromosome 6 in rice was examined by introducing a chromosomal segment from a sensitive line into an insensitive one. The crossing experiments showed that a range of variation in heading date occurred in the later generations and that the region might contain at least a major gene and two additional recessive genes controlling photoperiod sensitivity. Gene mapping experiments showed that the major gene was Se-1 and that a recessive gene (tentatively named se-pat) was loosely linked to it. The responses to photoperiods were examined among the different genotypes under natural and controlled conditions. The two genes acted additively on the degree of photoperiod sensitivity. However, se-pat plants showed a response to photoperiods that differed from that of the other sensitive lines; a short-day treatment at the seedling stage delayed heading in the former plants, suggesting that the manner of its expression was age-dependent. A recessive gene similar to se-pat seemed to be widely distributed in wild and cultivated rice, suggesting that the gene complex in the region plays a significant role in response to photoperiod.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001220050947
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  • 17
    Electronic Resource
    Electronic Resource
    Genic analysis of hybrid sterility caused by anther indehiscence between distantly related rice varieties (1997)
    Springer
    Euphytica 94 (1997), S. 311-318 
    Details
    ISSN: 1573-5060
    Keywords: hybrid sterility ; anther indehiscence ; spikelet sterility ; pollen grain fertility ; Oryza sativa
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Hybrid sterility of the cross between Silewah, an Indonesian native variety and Hayakogane, a Hokkaido rice variety in Japan was confirmed to be caused by anther indehiscence, based on a lot of spikelets with fewer numbers than 3 of dehiscent anthers and fewer numbers of pollens poured onto stigma per spikelet in Silewah/Hayakogane F1. In Silewah/Hayakogane//Hayakogane BC1F1, spikelet fertility was correlated with mean number of dehiscent anthers per spikelet. So, genic analyses for hybrid sterility by anther indehiscence were conducted by scoring spikelet sterility in F2, BC1F1s and triple cross. As a result, it was concluded that the hybrid sterility was controlled by complementary action of three dominant genes. Silewah has one of the three genes and Hayakogane has the other two. It was presumed that the two genes which Hayakogane possesses were derived from those of Aikoku, an old native variety in Japan.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1002963402494
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