Title page for etd-0725106-173423


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URN etd-0725106-173423
Author Jia-Rung Shie
Author's Email Address No Public.
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Department Biological Sciences
Year 2005
Semester 2
Degree Master
Type of Document
Language English
Title Phylogeography of Odd-scaled Snake Achalinus in Taiwan
Date of Defense 2006-06-14
Page Count 53
Keyword
  • phylogeography
  • genetic structure
  • Achalinus niger
  • Abstract Achalinus niger is an endemic species of Taiwan. It distributes from 1000 to 3000 m in altitude. The effect of geological isolation, especially mountains and valleys may influence the population genetic structure of the species. The ND2 gene was used as genetic marker to analyze the genetic structure of populations and phylogeography of A. niger. The mean genetic distance is 3.87% and the mean nucleotide diversity 3.5%. The Meifeng population was distinct in genetic structure from other populations. The data suggest that A. niger had more than one incursion events. In phylogenetic analyses, there were three major lineages in A. niger, and these lineages were correlated to geographic distribution. LineageⅠ was sampled from northern Taiwan, lineageⅡ from southern Taiwan, while lineage Ⅲ from Meifeng only. The result of AMOVA indicated that there were high genetic variations among groups. The genetic isolation and geographic distribution of these groups probably resulted from the geographic barriers.
    Advisory Committee
  • Hin-Kiu Mok - chair
  • Si-Min Lin - co-chair
  • Hsueh-Wen Chang - advisor
  • Files
  • etd-0725106-173423.pdf
  • indicate accessible in a year
    Date of Submission 2006-07-25

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