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  • *DNA Transposable Elements  (1)
  • Australopithecus afarensis  (1)
  • 1995-1999  (2)
  • 1955-1959
  • 1
    Electronic Resource
    Electronic Resource
    What's Your Angle? Size Correction and Bar–Glenoid Orientation in “Lucy” (A.L. 288-1) (1997)
    Springer
    International journal of primatology 18 (1997), S. 629-650 
    Details
    ISSN: 1573-8604
    Keywords: allometry ; ontogeny ; Australopithecus afarensis ; scapula ; African apes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract There has been much debate as to the locomotor repertoire of Lucy (A.L. 288-1) and other specimens of Australopithecus afarensis, ranging from fully committed bipeds to species that spent a significant time in the trees as well as on the ground. We examined the bar–glenoid angle, a character purported to indicate arboreal propensities, and its implications for this specific debate and the more general challenge of extracting behavioral information from fossils. We examined the bar–glenoid angle in ontogenetic samples of Pan paniscus, Pan troglodytes, Gorilla gorilla gorilla, Gorilla gorilla beringei, Pongo pygmaeus, Homo sapiens, and A.L. 288-1 (“Lucy”). We found that there is no allometry in the bar–glenoid angle for the great apes, but a weak correlation for humans. Moreover, the data scatters for the African apes and humans converge at the smaller size ranges, and Lucy's value for bar–glenoid angle falls precisely in this area of overlap. Therefore, we conclude that the bar–glenoid angle is not tightly correlated with function and, as such, cannot be used as a morphological signal of arboreal behavior, especially in the smaller size ranges, at which arboreal and nonarboreal species overlap. Our work does not resolve issues concerning Lucy's precise locomotor repertoire but adds new information to consider. The total morphological pattern, plus an appreciation of the underlying variance in morphological and behavioral characters in extant species, is key for making functional inferences from the morphology of fossils.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1026319424308
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    Paper (German National Licenses)
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  • 2
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    Simultaneous identification of bacterial virulence genes by negative selection (1995)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1995-07-21
    Description: An insertional mutagenesis system that uses transposons carrying unique DNA sequence tags was developed for the isolation of bacterial virulence genes. The tags from a mixed population of bacterial mutants representing the inoculum and bacteria recovered from infected hosts were detected by amplification, radiolabeling, and hybridization analysis. When applied to a murine model of typhoid fever caused by Salmonella typhimurium, mutants with attenuated virulence were revealed by use of tags that were present in the inoculum but not in bacteria recovered from infected mice. This approach resulted in the identification of new virulence genes, some of which are related to, but functionally distinct from, the inv/spa family of S. typhimurium.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hensel, M -- Shea, J E -- Gleeson, C -- Jones, M D -- Dalton, E -- Holden, D W -- New York, N.Y. -- Science. 1995 Jul 21;269(5222):400-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Infectious Diseases and Bacteriology, Royal Postgraduate Medical School, Hammersmith Hospital, London, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7618105" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; *DNA Transposable Elements ; *Genes, Bacterial ; Mice ; Mice, Inbred BALB C ; Molecular Sequence Data ; *Mutagenesis, Insertional ; Nucleic Acid Hybridization ; Polymerase Chain Reaction ; Salmonella Infections, Animal/*microbiology ; Salmonella typhimurium/genetics/*pathogenicity ; Sequence Tagged Sites ; Virulence/genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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