Origins of New Genes and Evolution of Their Novel Functions

Author:

Ding Yun12,Zhou Qi3,Wang Wen1

Affiliation:

1. State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China;

2. Janelia Farm Research Campus, Howard Hughes Medical Institute, Ashburn, Virginia 20147;

3. Department of Integrative Biology, University of California, Berkeley, California 94709;

Abstract

The origination of novel genes is an important process during the evolution of organisms because it provides critical sources for evolutionary innovation. Addressing how novel genes emerged and acquired novel and adaptive functions is of fundamental importance. Here we summarize the newest advances in our understanding of the molecular mechanisms and genome-wide patterns of new gene origination and new gene functions. We pay special attention to the origins of noncoding RNA genes and de novo genes, whose processes had been previously overlooked but are gaining increasingly visible importance. We then introduce recent findings that have opened a path to the study of the evolution of novel functions and pathways via novel genes. We also discuss the important issues and potential developments in the field.

Publisher

Annual Reviews

Subject

Ecology,Ecology, Evolution, Behavior and Systematics

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