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  • 1
    Electronic Resource
    Electronic Resource
    Maximum likelihood inference of protein phylogeny and the origin of chloroplasts (1990)
    Springer
    Journal of molecular evolution 31 (1990), S. 151-160 
    Details
    ISSN: 1432-1432
    Keywords: Evolutionary tree ; Amino acid sequence ; Insertion/deletion ; Bootstrap probability ; psbA ; Prochlorothrix
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary A maximum likelihood method for inferring protein phylogeny was developed. It is based on a Markov model that takes into account the unequal transition probabilities among pairs of amino acids and does not assume constancy of rate among different lineages. Therefore, this method is expected to be powerful in inferring phylogeny among distantly related proteins, either orthologous or parallogous, where the evolutionary rate may deviate from constancy. Not only amino acid substitutions but also insertion/deletion events during evolution were incorporated into the Markov model. A simple method for estimating a bootstrap probability for the maximum likelihood tree among alternatives without performing a maximum likelihood estimation for each resampled data set was developed. These methods were applied to amino acid sequence data of a photosynthetic membrane protein,psbA, from photosystem II, and the phylogeny of this protein was discussed in relation to the origin of chloroplasts.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02109483
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    The giant panda is closer to a bear, judged by α- and β-hemoglobin sequences (1993)
    Springer
    Journal of molecular evolution 36 (1993), S. 282-289 
    Details
    ISSN: 1432-1432
    Keywords: Ailuropoda melanoleuca ; Giant panda ; Carnivores ; Hemoglobin ; Maximum likelihood ; Protein phylogeny
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Using α- and β-hemoglobin sequences, we made a maximum likelihood inference as to the phylogenetic relationship among carnivores, including the two pandas, giant and lesser. Molecular phylogenetic studies up to 1985 had consistently indicated that the giant panda is more closely related to the bear than to the lesser panda. In 1986, however, a contradictory tree was constructed, using hemoglobins and so on, in which the two pandas link together (Tagle et al. 1986). In contrast to that tree, our conclusion supports the close relationship between bear and giant panda. The surface impression of a close relationship between the two pandas drawn from pairwise amino acid differences is explained by a rapid rate of hemoglobin evolution in the bear compared to that in the two pandas.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00160484
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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