Title page for etd-0711107-105219


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URN etd-0711107-105219
Author Chang-En Chou
Author's Email Address m932010014@student.nsysu.edu.tw
Statistics This thesis had been viewed 5575 times. Download 2001 times.
Department Biological Sciences
Year 2006
Semester 2
Degree Ph.D.
Type of Document
Language English
Title Phylogeography of the Endemic Species Japalura brevipes of Taiwan Based on cytochrome b Sequences and Morphology
Date of Defense 2007-06-11
Page Count 53
Keyword
  • refuge effect
  • canonical discriminate analysis
  • population genetic
  • dispersal ability
  • mid-altitude
  • Abstract The study intended to investigate the phylogeography of mid-altitude species, Japalura brevipes, which is the endemic to Taiwan. I used mitochondrial cytochrome b sequences and morphological characters to investigate the phylogeography. The molecular results showed that there are 16 haplotypes. The length of partial cytochrome b sequences is 617 bp including 84 informative sites, and the mean genetic distance is 5.4%. In phylogenetic analyses, three major clades were found in the phylogenetic trees. Moreover, these clades (north, central-north and south) corresponded to the geographic distribution. Analysis of population genetic structure revealed significant differentiation among populations, and most of the haplotypes were restricted to the locally. The morphological analyses showed that there is no difference between sexes at 18 characters, with the exception of the axilla-groin length and dorsal-crest scales. The Principal Component Analysis and Canonical Discriminate Analysis using 16 morphological characters showed the different results. Principal Component Analysis failed to separate populations. However, Canonical Discriminate Analysis could discriminate the populations of Guanwu, Nanheng, Sihyuantkou and Wuling Farm from others. Phylogeography of J. brevipes belonged to category 1 defined by Avise (2000). I infer refuge effect and dispersal ability hypotheses to explain the genetic structure of J. brevipes.
    Advisory Committee
  • Michael Hin-Kiu Mok - chair
  • Lin, Si-Min - co-chair
  • Chang, Hsueh-Wen - advisor
  • Files
  • etd-0711107-105219.pdf
  • indicate accessible in a year
    Date of Submission 2007-07-11

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