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Issue:ISSN 1000-7083
          CN 51-1193/Q
Director:Sichuan Association for Science and Technology
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Your Position :Home->Past Journals Catalog->2011 Vol.30 No.2

Progress on Avian CR1 Retroposons and their Applications as Genetic Markers
Author of the article:LIU Zhao-feng1, HE Li-wei2, YUAN Hong-gang1, YUE Bi-song1, LI Jing1*
Author's Workplace:(1. Sichuan Key Laboratory of Conservation Biology on Endangered Wildlife, College of Life Sciences, Sichuan University, Chengdu 610064, China; 2. Hebei Normal Universiy of Science and Technology, Qinhuangdao, Hebei Province 066004, China)
Key Words:retroposons; CR1 (Chicken repeat 1); genetic markers
Abstract:The most abundant repeat elements known in the chicken genome to date are non-LTR retroposons of the chicken repeat 1 (CR1) family which belongs to long interspersed elements (LINEs) and comprises 6.4% of the total chicken genome. CR1 are also enriched in other avian genomes. There are several advantages in using CR1 retroposons as genetic markers. For example, they are essentially free of homoplasy; moreover, the ancestral state of any given locus can be determined unambiguously as the absence of the retroposon insertion. Recently, CR1 retroposons have been recognized as powerful tools in avian phylogenetics and population genetic studies. The present review focuses on recently published works about the structures and characteristics of CR1 and their applications as genetic markers in avian phylogenetic studies.
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