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  • DNA characterization  (1)
  • Zfy-Zfx genes  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    Evolution of zinc finger-Y and zinc finger-X genes in oryzomyne-akodontine rodents (Cricetidae) (1992)
    Springer
    Journal of molecular evolution 34 (1992), S. 54-61 
    Details
    ISSN: 1432-1432
    Keywords: Zfy-Zfx genes ; Gene evolution ; Oryzomyne-akodontine rodents
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Zinc finger-Y (Zfy) and zinc finger-X (Zfx) genes were analyzed by Southern blotting in male and female specimens of 10 species belonging to the oryzomyne-akodontine stock of Cricetidae rodents. DNA fragments were used as characters to construct a parsimony tree of the genes. Zfx and Zfy trees in general coincide with the evolutionary history of the taxa. Both trees show Oryzomys longicaudatus genes as the outgroup whereas Akodon xanthorrhinus genes are also distant from those of the other species. Oxymycterus rufus and Bolomys obscurus share related sequences, while genes from the other six Akodon species form a group of their own. It was found that 9 out of the 10 species analyzed show Zfy amplification in a range varying from 2 to 24 copies and with a pattern that is clade specific. The estimation of the average changes per character strongly suggests that Zfy has evolved more rapidly than Zfx; our estimates of the rate of nucleotide substitution are 4.6 times higher for Zfy than for Zfx.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00163852
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    DNA of Akodon (Rodentia, Cricetidae). I. Biophysical characterization (1979)
    Springer
    Biochemical genetics 17 (1979), S. 297-303 
    Details
    ISSN: 1573-4927
    Keywords: Akodon ; Cricetidae ; DNA characterization
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Buoyant density in CsCl, melting temperature, and G + C base content of the DNA from four species of Akodon (Rodentia, Cricetidae) were determined. The buoyant density values of 1.699–1.701 g/cm3 were in accordance with the data reported for other cricetids. No satellite bands were seen in neutral CsCl. The T m values determined in 1 × SSC ranged from 86.2 to 87.0 C, which corresponds to G + C contents of 41.2–43.2%. There was good agreement in DNA base composition of the four species, although values were slightly higher in A. obscurus, suggesting a certain degree of interspecies variability.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00498970
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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