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Upgrading Functional Replacement: Evolutionary Evidence from Molecular Respiratory Proteins

並列摘要


Tree of life has always been a central issue in evolutionary biology since Darwin particularly Haeckel, but phylogeny is not the wholeness of evolution. In general, in tree-making one emphasizes gene duplication and divergence but excludes convergence in that the latter interferes tree topology reconstructed based on monophyly. However, the convergent evolution (convergence) has important ecological and evolutionary significance some scientists neglected. Therefore, this paper will discusses it at length. Based on that, we propose a new type of convergence: a progressive upgrading functional replacement with the three distinct classes of respiratory proteins: hemerythrin, hemocyanin and hemoglobin, which are the molecular lung rather than a container according to Perutz's view, as well as analyze its evolutionary implication.

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