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  • Chemistry  (1)
  • In situ hybridization  (1)
  • 1985-1989  (1)
  • 1945-1949  (1)
  • 1
    Electronic Resource
    Electronic Resource
    In situ localization of the transcripts of a homeobox gene in the honeybee Apis mellifera L. (Hymenoptera) (1988)
    Springer
    Development genes and evolution 197 (1988), S. 269-274 
    Details
    ISSN: 1432-041X
    Keywords: Apis mellifera ; Homeobox genes ; Dfd ; In situ hybridization ; Blastoderm
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary We have isolated and characterized a homeoboxcontaining gene from the honeybee Apis mellifera. Its homeobox region shows a high degree of sequence similarity to the homeobox of the Drosophila gene Deformed (Dfd). At the DNA level 82% of the basepairs are the same, whereas the putative amino acid sequences are identical between the bee and the fruitfly genes. Similarity is also present 5′ and 3′ to the homeobox. Using this isolate as a probe we have performed in situ hybridization on sections from blastoderm-stage embryos of the honeybee Apis mellifera. In early blastoderm stages we found a rather irregular pattern of labelled nuclei. In middle stages we found silver grains over each nucleus and also over the cytoplasm in a belt of blastoderm cells in the prospective gnathal region. These results indicate that the Deformed genes from honeybee and fruitfly are homologous both with respect to their DNA sequence and their spatial and temporal pattern of expression during embryogenesis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00380020
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  • 2
    Electronic Resource
    Electronic Resource
    Beiträge zur Kenntnis der polymeren Metaphosphate. I. Das Natriumtetrametaphosphat Na4[(PO3)4] · 4 H2O (1949)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 260 (1949), S. 331-336 
    Details
    ISSN: 0372-7874
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die Verbindung Na4[(PO3)4] · 4 H2O wurde nach einem verbesserten Verfahren auf zwei Wegen dargestellt, und der Polymerisationsgrad des Metaphosphatanions röntgenographisch aufgeklärt.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19492600605
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