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  • Articles  (3)
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  • *Biological Evolution
  • 2005-2009
  • 1995-1999
  • 1975-1979  (3)
  • 1955-1959
  • 1979  (3)
  • 1
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    Heterogeneity of vertebrate luteinizing hormone-releasing hormone (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1979-10-05
    Description: Radioimmunoassay and chromatography analyses of hypothalamic luteinizing hormone-releasing hormone (LHRH) have demonstrated the presence of LHRH-like immunoreactive peptides in a wide range of vertebrates. Contrary to previous reports, the molecule differs in various vertebrates. Avian, reptilian, and teleostean LHRH's are chemically distinct from the mammalian peptide but are in themselves indistinguishable. However, amphibian LHRH appears to be identical to the mammalian peptide. These findings have interesting evolutionary implications.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉King, J A -- Millar, R P -- New York, N.Y. -- Science. 1979 Oct 5;206(4414):67-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/384514" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Chromatography ; Gonadotropin-Releasing Hormone/*analysis/immunology ; Hypothalamus/analysis ; Radioimmunoassay ; Species Specificity ; Structure-Activity Relationship
    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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  • 2
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    Evolutionary relatedness of viper and primate endogenous retroviruses (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1979-04-20
    Description: A retrovirus previously isolated from a tumored Russell's viper is shown by molecular hybridization to be an endogenous virus of this reptilian species. Radio-immunologic techniques revealed that the viper retrovirus is immunologically and, hence, evolutionarily related to endogenous type D retorviruses of Old World primates. These findings extend the number of vertebrate classes possessing endogenous retroviruses and suggest that type D retroviruses may even be more widely distributed in nature than type C retroviruses.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Andersen, P R -- Barbacid, M -- Tronick, S R -- Clark, H F -- Aaronson, S A -- New York, N.Y. -- Science. 1979 Apr 20;204(4390):318-21.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/219480" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, Viral/analysis ; Base Sequence ; *Biological Evolution ; *Genes, Viral ; Nucleic Acid Hybridization ; Primates/*microbiology ; Retroviridae/*genetics/immunology ; Snakes/genetics/*microbiology ; Viral Proteins/immunology
    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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  • 3
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    Endothermy and activity in vertebrates (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1979-11-09
    Description: Resting and maximal levels of oxygen consumption of endothermic vertebrates exceed those of ectotherms by an average of five- to tenfold. Endotherms have a much broader range of activity that can be sustained by this augmented aerobic metabolism. Ectotherms are more reliant upon, and limited by, anaerobic metabolism during activity. A principal factor in the evolution of endothermy was the increase in aerobic capacities to support sustained activity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bennett, A F -- Ruben, J A -- New York, N.Y. -- Science. 1979 Nov 9;206(4419):649-54.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/493968" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Biological ; Adenosine Triphosphate/biosynthesis ; Animals ; *Biological Evolution ; *Body Temperature Regulation ; *Energy Metabolism ; Locomotion ; Motor Activity ; Oxygen Consumption ; Selection, Genetic ; Vertebrates/*physiology
    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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