In this study, mtDNA was used to examine the phylogenetic and molecular relationships of the freshwater shrimp family Atyidae. The phylogeographical variations of two landlocked Caridina pseudodenticulata and Neocaridina denticulata were also discussed. Four genera and 32 species of the Atyidae were identified and divided into 6 groups. In addition to 14 previously recorded species, eight of them are new records, while another 10 species remain unconfirmed. The combination of morphological and molecular characteristics can effectively differentiate species within the family Atyidae. Analysis of demographic parameters indicates a recent population expansion of C. pseudodenticulata, but not for N. denticulata. The result of Bayesian skyline plot analysis implies that the expansion of C. pseudodenticulata began about 70,000 years ago, followed by a very recent rapid expansion approximately 4,000-6,000 years ago. Four major geographical regions of N. denticulata can be identified, including: (1) Southern Taiwan group; (2) Hualian group; (3) Northern Taiwan group; and (4) Ilan group. The study on the phylogenetic relationship of Atyidae in Taiwan could provide valuable information for future study of speciation and geological variation in tropical island.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0728110-034124 |
| Date | 28 July 2010 |
| Creators | Han, Chiao-Chuan |
| Contributors | Tzen-Yuh Chiang, Lee-Shing Fang, I-Shiung Chen, I-Ming Chen, Chyng-Shyan Tzeng, Jong-Kang Liu |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | Cholon |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0728110-034124 |
| Rights | not_available, Copyright information available at source archive |
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