碩士 / 國立臺灣師範大學 / 生命科學系 / 103 / The migration, dispersal, and distribution of primary freshwater fishes are associated with historical hydrogeography events such as river connection and separation. Because the distribution of freshwater fishes must depend on river connection, freshwater fishes can reflect biogeography and geological events. The genus Osteochilus, which includes 35 species, is mainly distributed throughout the ancient Sundaland. Osteochilus salsburyi, which is the only member of the Labeoninae family found in China, is the most eastern distributed species of the genus and is found in southern China and northern Indo-China peninsula, In this study, I aims to investigate the genetic structure and migration history of O.salsburyi by analyzing the mitochondrial and nuclear genes, including cytochrome b, D-loop, RAG1, MYH6, rpS7 and COMT. A total of 236 O.salsburyi were sample from 12 locations within southern China. Samples from Hainan Island exhibited highest genetic variations, including number of haplotypes, haplotype and nucleotide diversities, among all samples. Phylogenetic analyses showed that Hainan Island population were at the basal lineage to the rest of southern China O.salsburyi population. Historical demographic analyses (Bayesian skyline plot and Fu’s Fs test) revealed population expansion. Based on my current results, I propose that the southern China O.salsburyi population was originated from its south, and the Hainan Island was the first place to be colonized.
| Identifer | oai:union.ndltd.org:TW/103NTNU5112031 |
| Date | January 2015 |
| Creators | Peng, Liang-Wei, 彭良維 |
| Contributors | Wang, Jhen-Che, Wang, Hung-Yi, 王震哲, 王弘毅 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 100 |
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