Persistent Link:
http://hdl.handle.net/10150/284095
Title:
Comparative analysis of the vitellogenin genes of the Culicidae
Author:
Isoe, Jun
Issue Date:
2000
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
A comparative sequence analysis of mosquito vitellogenin genes was done to gain a better understanding of the evolution of vitellogenin genes in mosquitoes. Genomic clones of vitellogenin genes were isolated from Aedes aegypti , Ae. atropalpus, Culex quinquefasciatus , Toxorhynchites amboinensis, and Anopheles albimanus. Vitellogenin genes were also cloned using degenerate PCR primers from 34 species of mosquitoes representing genera (Aedes, Anopheles, Armigeres, Coquillettidia, Culex, Culiseta, Deinocerites, Psorophora, Mansonia, Mimomyia, Toxorhynchites, and Wyeomyia). Analysis of mosquito vitellogenin gene sequences suggests that a majority of nonsynonymous amino acid substitutions were due to conserved and moderately conserved changes. The vitellogenin genes of the three anautogenous mosquito species had very high synonymous codon usage biases. On the other hand, the vitellogenin genes of autogenous mosquitoes exhibited low synonymous codon usage bias. An unusual pattern of synonymous codon usage was observed in the first 15 amino acid residues encoding the signal peptide in the mosquito vitellogenin genes, where a significantly high number of rarely used synonymous codons have accumulated. A phylogenetic footprinting analysis detected several evolutionarily conserved sequence elements in the 5' regulatory regions of some of the mosquito vitellogenin genes. Mosquito phylogenetic trees reconstructed from maximum parsimony, maximum likelihood, and distance methods based on vitellogenin gene sequences are highly supported and robust, and vitellogenin gene sequences can be utilized to infer the phylogenetic history of mosquitoes, and perhaps other animals.
Type:
text; Dissertation-Reproduction (electronic)
Keywords:
Biology, Molecular.; Biology, Genetics.
Degree Name:
Ph.D.
Degree Level:
doctoral
Degree Program:
Graduate College; Insect Science
Degree Grantor:
University of Arizona
Advisor:
Hagedorn, Henry H.

Full metadata record

DC FieldValue Language
dc.language.isoen_USen_US
dc.titleComparative analysis of the vitellogenin genes of the Culicidaeen_US
dc.creatorIsoe, Junen_US
dc.contributor.authorIsoe, Junen_US
dc.date.issued2000en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractA comparative sequence analysis of mosquito vitellogenin genes was done to gain a better understanding of the evolution of vitellogenin genes in mosquitoes. Genomic clones of vitellogenin genes were isolated from Aedes aegypti , Ae. atropalpus, Culex quinquefasciatus , Toxorhynchites amboinensis, and Anopheles albimanus. Vitellogenin genes were also cloned using degenerate PCR primers from 34 species of mosquitoes representing genera (Aedes, Anopheles, Armigeres, Coquillettidia, Culex, Culiseta, Deinocerites, Psorophora, Mansonia, Mimomyia, Toxorhynchites, and Wyeomyia). Analysis of mosquito vitellogenin gene sequences suggests that a majority of nonsynonymous amino acid substitutions were due to conserved and moderately conserved changes. The vitellogenin genes of the three anautogenous mosquito species had very high synonymous codon usage biases. On the other hand, the vitellogenin genes of autogenous mosquitoes exhibited low synonymous codon usage bias. An unusual pattern of synonymous codon usage was observed in the first 15 amino acid residues encoding the signal peptide in the mosquito vitellogenin genes, where a significantly high number of rarely used synonymous codons have accumulated. A phylogenetic footprinting analysis detected several evolutionarily conserved sequence elements in the 5' regulatory regions of some of the mosquito vitellogenin genes. Mosquito phylogenetic trees reconstructed from maximum parsimony, maximum likelihood, and distance methods based on vitellogenin gene sequences are highly supported and robust, and vitellogenin gene sequences can be utilized to infer the phylogenetic history of mosquitoes, and perhaps other animals.en_US
dc.typetexten_US
dc.typeDissertation-Reproduction (electronic)en_US
dc.subjectBiology, Molecular.en_US
dc.subjectBiology, Genetics.en_US
thesis.degree.namePh.D.en_US
thesis.degree.leveldoctoralen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.disciplineInsect Scienceen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorHagedorn, Henry H.en_US
dc.identifier.proquest9965873en_US
dc.identifier.bibrecord.b40479754en_US
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