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原文連結
論文資訊
- 類型：已發表論文
- 日期：2009
摘要
Background: Roo is the most abundant retrotransposon in the fruit fly Drosophila melanogaster. Its 演化ary origins and dynamics are thus of special interest for understanding the 演化ary history of Drosophila 基因組 organization. We here study the 系統發育 distribution and 演化 of roo, and its highly diverged relative rooA in 12 completely sequenced 基因組s of the genus Drosophila. Results: We identify a total of 164 roo copies, 57 of which were previously unidentified copies that occur in 9 of the 12 基因組s. Additionally we find 66 rooA copies in four 基因組s and remnants of this element in two additional 基因組s. We further increased the number of elements by searching for individual roo/rooA sequence domains. Most of our roo and rooA elements have been recently inserted. Most elements within a 基因組 are highly s
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