Daily Archives: June 19, 2010

Evolutionary capacitance

Previously, I took issue with John Avise’s abrupt description of alternative splicing as having “some advantage,” as alternative splicing may play a crucial role in the evolution of metazoans by shielding sequence from selection, allowing minor variants to emerge and grow before being put to the full test of selection. It’s such shielding that might be required to expand a more complex state. One way to think of alternative splicing is as an evolutionary capacitor. I’ll let the Masel group describe what that means:

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