Genome Complexity: Adaptive evolution or genetic drift? Does genome complexity produce organismal complexity?
نویسندگان
چکیده
منابع مشابه
Drift and Genome Complexity Revisited
1 Department of Ecology and Evolutionary Biology, Rice University, Houston, Texas, United States of America, 2 Department of Integrative Biology, University of California Berkeley, Berkeley, California, United States of America, 3 Laboratoire de Biométrie et Biologie Evolutive, Université de Lyon, Université Lyon 1, CNRS, UMR5558, Villeurbanne, France, 4 Department of Biology, Luther College, D...
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Genome complexity is correlated with biological complexity. A recent paper by Michael Lynch proposes that evolution of complex genomic architecture was driven primarily by non-adaptive stochastic forces, rather than by adaptive evolution.1 A general negative relationship between selection efficiency and genome complexity provides a strong support for this hypothesis. The broad capacity of this ...
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Mechanisms underlying the dramatic patterns of genome size variation across the tree of life remain mysterious. Effective population size (N(e)) has been proposed as a major driver of genome size: selection is expected to efficiently weed out deleterious mutations increasing genome size in lineages with large (but not small) N(e). Strong support for this model was claimed from a comparative ana...
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Although the evolutionary significance of gene duplication has long been recognized, it remains unclear what determines gene duplicability. We find protein complexity to be an important determinant because the proportion of unduplicated genes (P) increases with the number of subunits in a protein. However, P is high (>or=65%) for both monomers and multimers in yeast, but <or=30% in human except...
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ژورنال
عنوان ژورنال: Heredity
سال: 2004
ISSN: 0018-067X,1365-2540
DOI: 10.1038/sj.hdy.6800494