We are analyzing https://link.springer.com/article/10.1007/bf01795974.

Title:
The phylogeny of human globin genes investigated by the maximum parsimony method | Journal of Molecular Evolution
Description:
Gene phylogenetic trees were constructed by the maximum parsimony method for various sets of ninety six globin chain amino acid sequences spanning plant and animal kingdoms. The method, executed by several computer programs, constructed ancestor and descendant globin messengers on tree topologies which required the least number of nucleotide replacements to account for the evolution of the globins. The human myoglobin-hemoglobin divergence was traced to a gene duplication which occurred either in the first vertebrates or earlier yet in the common ancestor of chordates and annelids, the alpha-beta divergence to a gene duplication in the common ancestor of teleosts and tetrapods, the gamma divergence from typical beta chains to a gene duplication in basal therian mammals, and the delta separation from beta to a duplication in the basal catarrhine primates. Evidence was provided by the globin phylogenies for the hominoid affinities of the gibbon and the close phyletic relationship of the African apes to man. Over the period of teleos-tetrapod divergence the globin messengers evolved at an average rate of 18.5 nucleotide replacements per 100 codons per 108 years, a faster rate than most previous estimates. Very fast and very slow rates were encountered in different globin lineages and at different stages of descent, reducing the effectiveness of globins as molecular clocks. Rates increased with gene duplication and decreased after selection discovered useful specializations in the products of genes which had previously been freer to accept mutations. The early eutherian radiation was characterized by rapid rates of globin evolution, but the later hominoid radiation by extremely slow rates. This pattern was related to more complicated grades of internal organization evolving in human ancestors. The types of nucleotide replacements in the globin messengers over the long course of globin evolution did not seem indicative of any special mutational mechanisms.
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google, scholar, pubmed, biol, biochem, chem, evolution, nature, goodman, article, globin, human, biophys, moore, barnabas, matsuda, gene, duplication, sci, shelton, press, braunitzer, acta, protein, biochim, access, schroeder, mol, privacy, cookies, content, journal, research, molecular, thompson, physiol, boyer, eur, chicago, huisman, lehmann, publish, search, genes, method, nucleotide, replacements, divergence, vertebrates, rates,

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month download article/chapter molecular evolution aims protein evolution access human myoglobin-hemoglobin divergence duplication-loss hemoglobin gene family related subjects pubmed google scholar gene duplication privacy choices/manage cookies full article pdf nucleotide replacements 5 nucleotide replacements globin evolution descendant globin messengers globin messengers evolved wayne state university maximum parsimony method european economic area close phyletic relationship teleos-tetrapod divergence special mutational mechanisms conditions privacy policy human evolution early eutherian radiation internal organization evolving alpha-beta divergence typical beta chains accepting optional cookies basal therian mammals basal catarrhine primates average rate faster rate molecular clocks journal finder publish extremely slow rates primate evolution check access instant access main content log article goodman books a article journal globin messengers duplication globin phylogenies globin lineages article log evolution privacy policy

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         headline:The phylogeny of human globin genes investigated by the maximum parsimony method
         description:Gene phylogenetic trees were constructed by the maximum parsimony method for various sets of ninety six globin chain amino acid sequences spanning plant and animal kingdoms. The method, executed by several computer programs, constructed ancestor and descendant globin messengers on tree topologies which required the least number of nucleotide replacements to account for the evolution of the globins. The human myoglobin-hemoglobin divergence was traced to a gene duplication which occurred either in the first vertebrates or earlier yet in the common ancestor of chordates and annelids, the alpha-beta divergence to a gene duplication in the common ancestor of teleosts and tetrapods, the gamma divergence from typical beta chains to a gene duplication in basal therian mammals, and the delta separation from beta to a duplication in the basal catarrhine primates. Evidence was provided by the globin phylogenies for the hominoid affinities of the gibbon and the close phyletic relationship of the African apes to man. Over the period of teleos-tetrapod divergence the globin messengers evolved at an average rate of 18.5 nucleotide replacements per 100 codons per 108 years, a faster rate than most previous estimates. Very fast and very slow rates were encountered in different globin lineages and at different stages of descent, reducing the effectiveness of globins as molecular clocks. Rates increased with gene duplication and decreased after selection discovered useful specializations in the products of genes which had previously been freer to accept mutations. The early eutherian radiation was characterized by rapid rates of globin evolution, but the later hominoid radiation by extremely slow rates. This pattern was related to more complicated grades of internal organization evolving in human ancestors. The types of nucleotide replacements in the globin messengers over the long course of globin evolution did not seem indicative of any special mutational mechanisms.
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      headline:The phylogeny of human globin genes investigated by the maximum parsimony method
      description:Gene phylogenetic trees were constructed by the maximum parsimony method for various sets of ninety six globin chain amino acid sequences spanning plant and animal kingdoms. The method, executed by several computer programs, constructed ancestor and descendant globin messengers on tree topologies which required the least number of nucleotide replacements to account for the evolution of the globins. The human myoglobin-hemoglobin divergence was traced to a gene duplication which occurred either in the first vertebrates or earlier yet in the common ancestor of chordates and annelids, the alpha-beta divergence to a gene duplication in the common ancestor of teleosts and tetrapods, the gamma divergence from typical beta chains to a gene duplication in basal therian mammals, and the delta separation from beta to a duplication in the basal catarrhine primates. Evidence was provided by the globin phylogenies for the hominoid affinities of the gibbon and the close phyletic relationship of the African apes to man. Over the period of teleos-tetrapod divergence the globin messengers evolved at an average rate of 18.5 nucleotide replacements per 100 codons per 108 years, a faster rate than most previous estimates. Very fast and very slow rates were encountered in different globin lineages and at different stages of descent, reducing the effectiveness of globins as molecular clocks. Rates increased with gene duplication and decreased after selection discovered useful specializations in the products of genes which had previously been freer to accept mutations. The early eutherian radiation was characterized by rapid rates of globin evolution, but the later hominoid radiation by extremely slow rates. This pattern was related to more complicated grades of internal organization evolving in human ancestors. The types of nucleotide replacements in the globin messengers over the long course of globin evolution did not seem indicative of any special mutational mechanisms.
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         Phylogenetic Trees
         Ancestral Sequences
         Gene Duplication
         Nucleotide Replacements
         Rate of Protein Evolution
         Evolutionary Biology
         Microbiology
         Plant Sciences
         Plant Genetics and Genomics
         Animal Genetics and Genomics
         Cell Biology
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