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  • Drosophila  (3)
  • allozymes  (3)
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  • 1
    Electronic Resource
    Electronic Resource
    Genetic and cytogenetic studies of four glycolytic enzymes in Drosophila melanogaster: Aldolase, triosephosphate isomerase, 3-phosphoglycerate kinase, and phosphoglucomutase (1979)
    Springer
    Biochemical genetics 17 (1979), S. 769-783 
    Details
    ISSN: 1573-4927
    Keywords: Drosophila ; aldolase ; triosephosphate isomerase ; glycolysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Four glycolytic enzymes in Drosophila melanogaster have been genetically and/or cytogenetically mapped. The structural gene for aldolase (Ald) has been genetically mapped to 3-91.5 and cytogenetically localized to 97A-B. Tpi, the structural gene for triosephosphate isomerase, has been genetically mapped to 3-101.3 and cytogenetically localized to 99B-E. Utilizing closer-flanking markers than the previous mapping, Pgk, the structural gene for 3-phosphoglycerate kinase, has been mapped to 2-5.9; cytogenetically it was found to lie in the interval between 22D and 23E3. The cytogenetic location of Pgm, the structural gene for phosphoglucomutase which has been located genetically at 3-43.4, was determined to be in 72D1-5.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00502135
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  • 2
    Electronic Resource
    Electronic Resource
    Genetic and cytogenetic studies of the malate dehydrogenases of Drosophila melanogaster (1979)
    Springer
    Biochemical genetics 17 (1979), S. 947-956 
    Details
    ISSN: 1573-4927
    Keywords: malate dehydrogenase ; cytoplasmic ; mitochondrial ; cytogenetic ; Drosophila
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Genetic and cytogenetic locations of the structural genes for the NAD-dependent malate dehydrogenases have been studied. The mitochondrial form (mMDH) is coded for by a gene (Mdh) found at 62.6 on the third chromosome and included in Df(3R)P14, which includes 90C2–91A3 in the salivary gland chromosomes. Based on its inclusion within several J (Jammed; 2–41.0) deficiencies, the structural gene (cMdh) for the cytoplasmic form (cMDH) was determined to lie in region 31B-E, confirming the earlier finding of Grell. Flies lacking any cMDH activity (cMdhn-γ10069/ Df(2L)J-der-27) were both viable and fertile.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00504314
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  • 3
    Electronic Resource
    Electronic Resource
    Genetic and biochemical studies on glutamate-pyruvate transaminase from Drosophila melanogaster (1980)
    Springer
    Biochemical genetics 18 (1980), S. 303-309 
    Details
    ISSN: 1573-4927
    Keywords: Drosophila melanogaster ; allozymes ; GPT ; genetic mapping
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract We have used electrophoretic variants of glutamate-pyruvate transaminase (GPT, E.C. 2.6.1.2) in Drosophila melanogaster to genetically map the structural gene to position 42.6 on the X chromosome. By pseudodominance tests over several deficiencies we have localized it cytogenetically to the interval 11Fl-2 to 12Al-2. The sedimentation constant (s 20,w) of the native enzyme was determined in sucrose density gradients to be 5.9 and the native molecular weight approximately 87,000. The similarity in physical properties to mammalian enzymes suggests that the enzyme may also be dimeric in D. melanogaster.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00484243
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  • 4
    Electronic Resource
    Electronic Resource
    Comparative studies of allozyme loci in Drosophila simulans and Drosophila melanogaster. I. Three dipeptidase loci (1981)
    Springer
    Biochemical genetics 19 (1981), S. 75-85 
    Details
    ISSN: 1573-4927
    Keywords: dipeptidases ; variation ; allozymes ; Drosophila
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Genetic variation at three dipeptidase loci (Dip-A, Dip-B, and Dip-C) in Drosophila simulans was analyzed by starch gel electrophoresis. Dip-A was found to be polymorphic in four populations, while Dip-B and Dip-C were found to be polymorphic in one. The numbers of different alleles found at each respective locus were: Dip-A, two; Dip-B, two; and Dip-C, three. Dip-A was genetically mapped at 57.9 on the second chromosome, and Dip-B and Dip-C at 80.9 and 87.9 on the third chromosome, respectively. Neither Dip-B nor Dip-C has been mapped in D. melanogaster because both loci are apparently monomorphic. Their map positions in D. simulans with respect to flanking markers whose homologous genes have been cytogenetically localized in D. melanogaster suggested that they might be mapped cytogenetically by using available deficiencies in D. melanogaster. Accordingly, by the construction of interspecific hybrids which carried deficiencies of melanogaster and an allele of simulans with a mobility different from that of the fixed melanogaster allele, Dip-B and Dip-C were localized between 87F12-14 and 88C1-3 and between 87B5-6 and 87B8-10, respectively, in the salivary gland chromosomes of D. melanogaster. The similarity between these two species is discussed on the basis of these findings.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00486138
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  • 5
    Electronic Resource
    Electronic Resource
    Genetic and cytogenetic studies of malic enzyme in Drosophila melanogaster (1981)
    Springer
    Biochemical genetics 19 (1981), S. 525-534 
    Details
    ISSN: 1573-4927
    Keywords: malic enzyme ; nulls ; allozymes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The genetic and cytogenetic locations of the structural gene (Men) for malic enzyme have been determined. Men maps genetically between kar and ry at 51.73±0.02. Cytogenetically, Men probably lies in the proximal edge of 87D1,2, based on the results of mapping utilizing a number of deficiencies with breakpoints in that region. A number of null alleles have been recovered; heterozygotes for these nulls and a Men deficiency are both viable and fertile. These findings are related to the one band, one functional unit model of salivary gland chromosome structure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00484624
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