Insertion-deletion biases and the evolution of genome size.

Abstract excerpt

Numerous theories have been proposed to account for the pronounced differences in the quantity of non-coding DNA among eukaryotic genomes, but the current repertoire remains incomplete because the only explicit mechanisms it provides involve DNA gain. It has been proposed more recently that biases in spontaneous insertions and deletions (indels) can lead to genome shrinkage by mutational mechanisms alone. The...

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