【摘 要】
：
Organisms have variable genome sizes andcontain different numbers of genes. This difference demonstrates that new gene origination is a fundamental process in e
【机 构】
：
CAS-Max Planck Junior Scientist Group,College of Animal Science and Technology,Graduate School of th
【基金项目】
：
国家自然科学基金;the program of the CAS-Max Planck Junior Scientist Group, the key project of the CAS
论文部分内容阅读
Organisms have variable genome sizes andcontain different numbers of genes. This difference demonstrates that new gene origination is a fundamental process in evolutionary biology. Though the study of the origination of new genes dated back more than half a century ago, it is not until the 1990s when the first young genejingwei was found that empirical investigation of the molecular mechanisms of origination of new genes became possible. In the recent years,several young genes were identified and the studies on these genes have greatly enriched the knowledge of this field. Yet more details in a general picture of new genes origination are to be clarified. We have developed a systematic approach to searching for young genes at the genomic level, in the hope to summarize a general pattern of the origination and evolution of new genes, such as the rate of new gene appearance, impact of new genes on their host genomes, etc.
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