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Description
Title: | Distribution of P Elements in Muscomorpha |
Author(s): | Chen, Chun-Liang |
Doctoral Committee Chair(s): | Robertson, Hugh M. |
Department / Program: | Entomology |
Discipline: | Entomology |
Degree Granting Institution: | University of Illinois at Urbana-Champaign |
Degree: | Ph.D. |
Genre: | Dissertation |
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 |
Type: | Text |
Language: | English |
Description: | 87 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1998. |
URI: | http://hdl.handle.net/2142/86478 |
Other Identifier(s): | (MiAaPQ)AAI9904406 |
Date Available in IDEALS: | 2015-09-28 |
Date Deposited: | 1998 |
This item appears in the following Collection(s)
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Dissertations and Theses - Entomology
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Graduate Dissertations and Theses at Illinois
Graduate Theses and Dissertations at Illinois