Genome-wide analysis of transposable elements and tandem repeats in the compact placozoan genome
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The placozoan Trichoplax adhaerens has a compact genome with many primitive eumetazoan characteristics. In order to gain a better understanding of its genome architecture, we conducted a detailed analysis of repeat content in this genome. The transposable element (TE) content is lower than that of other metazoans, and the few TEs present in the genome appear to be inactive. A new phylogenetic clade of the gypsy-like LTR retrotransposons was identified, which includes the majority of gypsy-like elements in Trichoplax. A particular microsatellite motif (ACAGT) exhibits unexpectedly high abundance, and also has strong association with its nearby genes. Reviewers: This article was reviewed by Dr. Jerzy Jurka and Dr. I. King Jordan.
Shi Wnag and Eli Meyer is with the Section of Integrative Biology, School of Biological Sciences, University of Texas at Austin, 1 University Station C0930, Austin, TX 78712, USA -- Shi Wang and Lingling Zhang are with the Waggoner Center for Alcohol and Addiction Research, University of Texas at Austin, 1 University Station A4800, Austin, TX 78712, USA -- Zhenmin Bao is with the Key Laboratory of Marine Genetics and Breeding, Ocean University of China,5 Yushan Road, Qingdao 266003, China