Dissertation > Excellent graduate degree dissertation topics show

Molecular Phylogeny of Rhus Gall Aphids (Hemiptera: Aphididae: Pemphiginae) Based on DNA Sequences

Author: AnZuo
Tutor: RenZhuMei
School: Shanxi University
Course: Genetics
Keywords: Gall aphid DNA sequence mtDNA gene EF- 1α gene Phylogenetic
CLC: S899.4
Type: Master's thesis
Year: 2011
Downloads: 6
Quote: 0
Read: Download Dissertation


The Rhus gall aphids of the subtribe Melaphidina (Hemiptera: Aphididae:Pemphiginae), are a unique aphid group which parasitizes exclusively on the leaves of the primary host-plant Rhus to form galls. To complete their life cycle, it is necessary for this group of aphids to shift hosts between the primary (summer) hosts Rhus species and the secondary (winter) hosts mosses. The current classification system of Rhus gall aphids is mainly depends on morphology of aphids and galls, and their host plants. We examined the evolutionary relationships within the subtribe Melaphidina using sequences of the mitochondrial cytochrome C oxidase unitⅠ(COⅠ),Ⅱ(COⅡ), and cytochrome b (Cyt b) genes, and the nuclear elongation factor lα(EF-la) gene, with the sampling of nine species and three subspecies representing all six genera of Melaphidina. We obtained totally 3298bp of DNA sequence, including 1202bp of COⅠ、853bp of tRNA/COⅡ、433bp of Cyt b and 810bp of EF-1α, respectively. Phylogenetic trees of single and combined gene were constructed by MP, ML and BI methods. The results are as following:1, The Rhus gall aphids are showed to be monophyletic, six genera of Rhus gall aphids formed six well-supported clades, which supported the results of traditional morphological classification.2, Nurudea ibofushi is nested within the genus Schlechtendalia with high boot-strap value. In addition, gall shapes between N. ibofushi and other two species in Nurudea are quite different, but similar to the genus Schlechtendalia. So the species N. ibofushi should belong to the genus Schlechtendalia.3, The North American species Melaphis rhois is nested within the Asian species, which indicates that this species may originate from Asia.4, In case of the relationship between the subspecies of the genus Kaburagia, our results showed that K. rhusicola ovogallis is close to K. rhusicola, and then clustered with the other two subspecies K. rhusicola ensigallis and K. rhusicola ovatirhusicola. The monophyly of this genus Kaburagia was strongly supported with high boot-strap values.5, The cluster between genera are parallel with rather low boot-strap value, which indicates that the relationships between genera are still unsolved.

Related Dissertations

  1. Comparison of Genetic Diversity of Total Planktonic Bacteria and Active Planktonic Bacteria in Huguangyan Maar Lake in Summer,Q938
  2. Study on Phylogenetic Diversity and Bioactivity of Symbiotic Fungi of Coral,R284
  3. Establishment of the Molecular Identifying System of Curvualria and Application in Difficult Species,Q949.32
  4. Isolation and Identification of Infectious Bronchitis Virus in Henan and the Full Genome Sequence Analysis of Isolated Strains HN104 and HN091,S852.65
  5. Isolation and Identification of Avian Pathogenic Escherichia Coli from Chicken and Characterizations of Its Virulence-Associated Genes,S852.61
  6. Phylogenic Analysis of Henan Populations and Feeding Behavior Comparison of Bemisia Tabaci B and Q Biotypes,S433
  7. Identification and Lipopeptide Analysis of Biocontrol Bacillus Spp. Isolated from Tibet,S476.1
  8. The Molecular Evolution Analysis of Genes Related with Cotton Fiber Development in Different Cotton Species in Gossypium,S562
  9. Fine Mapping of Inter-Subspecies Hybrid Pollen Sterility Gene in Rice (Oryza Sativa L.) and Phylogenetic Analysis,S511
  10. Studies on Genetic Diversity and Phylogenetic Relationship of Dendranthema and Its Related Genera,S682.11
  11. Investigation on the Diversity and Phylogenetic of Methanogens and the Relationship between Methanogenesis and Acetogenesis in the Hindgut of Pigs,S828
  12. Phylogenetic Relationship and Biogeography of Thoreales Based on Gene Sequences,Q941
  13. Numerical Taxonomy of Rhus Gall Aphids (Hemiptera: Pemphigidae) from East Asia and North America,S899.4
  14. An Improvement of Cluster on Phylogenetic Profiling Method,TP311.13
  15. Mitogenome Structure and Phylogenetic Analyses of Exorista Sorbillans,S884.62
  16. Cetoniidae (Cetoniidae) some types of gene sequences and phylogenetic relationship,Q963
  17. DNA sequence data compression algorithm,TP311.13
  18. Isozyme Patterns in Various Tissues, Phylogenetic Analysis in Scorpaeniformes Base on Mitochondrial cyt B、COⅡof Inimicus Japonicus and Isolation and Characterization of High Polymorphic Microsatellite Markers in It,S917.4
  19. Morphology and Phylogenetic Analysis on Endoreticulatus Sp. Zhenjiang and Nosema Sp. MPr,S884
  20. Characteristics Analysis for DNA Sequences of the Influenza Virus Based on the Time Series Theory Methods,R346

CLC: > Agricultural Sciences > Livestock, animal medicine,hunting,silkworm,bee > Beekeeping,beneficial insects feeding > Beneficial insects feeding > Gall
© 2012 www.DissertationTopic.Net  Mobile