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Title:Distribution of P Elements in Muscomorpha
Author(s):Chen, Chun-Liang
Doctoral Committee Chair(s):Robertson, Hugh M.
Department / Program:Entomology
Degree Granting Institution:University of Illinois at Urbana-Champaign
Subject(s):Biology, Molecular
Abstract:Partial P elements (some almost full-length) were recovered from genomic libraries of the three species. The sequences of these newly recovered P element homologues have shed light on the distribution and evolution of P elements. First of all, these P element homologues are ancient and now defective. Second, P elements are not confined to Drosophilidae but are in fact widespread in the infraorder Muscomorpha of Diptera. Third, phylogenetic analyses showed that P elements have evolved into distinct Lucilia and Drosophila subfamilies. Fourth, the conservation of the leucine zipper domains and GTP-binding domain of the P element transposase in these flies indicates that they were important for the activity of these P elements. Finally, given the long evolutionary history of these flies, horizontal transfers of these P elements must have occurred at recent points in time for the P elements in the three flies to be reasonably well conserved.
Issue Date:1998
Description:87 p.
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1998.
Other Identifier(s):(MiAaPQ)AAI9904406
Date Available in IDEALS:2015-09-28
Date Deposited:1998

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