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Statistical Theory and Methods for Evolutionary Genomics$
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Xun Gu

Print publication date: 2010

Print ISBN-13: 9780199213269

Published to Oxford Scholarship Online: January 2011

DOI: 10.1093/acprof:oso/9780199213269.001.0001

Functional Divergence after Gene Duplication: Applications and Others

Chapter:
(p. 73 ) 4 Functional Divergence after Gene Duplication: Applications and Others
Source:
Statistical Theory and Methods for Evolutionary Genomics
Author(s):

Xun Gu

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780199213269.003.0004

As most amino acid substitutions are not related to the functional divergence but only represent the neutral evolution, it becomes crucial how to distinguish statistically between these two possibilities. Chapter 3 introduced the statistical methods to solve this problem, based on the principle that functional divergence between duplicate genes is highly correlated with the change of evolutionary rate. This chapter discusses several case studies for applying these methods to biological problems.

Keywords:   gene duplication, functional divergence, case studies, amino acid substituion

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