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Abstract Detail


Evolution and Diversification in the Sapindales

Chiang, Yu-Chung [1], Hsu, Tsai-Wen [2], Chiang, Tzen-Yuh [3], Gong, Xun [4], Tsai, Chi-Chu [5], Wang, Wei-Li [6].

Phylogeography study of Toxicodendron radicans ssp hispidum and orientale in East Asia.

In order to investigate the genetic diversity, phylogeography, possible dispersing pathway and refugium within and among natural populations on the two subspecies of Toxicodendron radicans in Asia, was analyzed by using sequence data of organelle genome. T. radicans in Asia, known as the relative or complex of North American poison ivy is a perennial climbing deciduous woody shrub. Populations are distributed in the monsoon Asia, including Southwest China, Taiwan and Japan, where the geological history is largely affected by plate tectonics, island formation, and Pleistocene glaciations. Gillis (1975) reclassified Rhus ambigua in East Asia to T. radicans and devided to two subspecies. One subspecies, T. radicans ssp. hispidum, is distributed in Southwest China, while another one, ssp. orientale, is distributed in Japan. Asian poison ivy is an ideal model for estimating population diversity, migration, speciation, vicarance and phylogeographical reconstruction. Using sequences of highly diverse regions in organelle DNA was used to investigate the phygeographical pattern, dispersing pathway and refugium of Asian poison ivy.


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1 - Pingtung University of Science and Technology, Department of Life Sciences, Depart. Life Science, NPUST,, No. 1, Hseuhfu Rd. Neipu, Pingtung, 912, Taiwan
2 - Taiwan Endemic Species Research Institute, Nantou, 552, Taiwan
3 - Cheng-Kung University, Department of Biology, Tainan, 701, Taiwan
4 - Kunming Institute of Botany, Chinese Academy of Sciences, Laboratory of Biodiversity and Biogeography, Kunming, Yunan, 650204, China
5 - Kaohsiung District Agricultural Research and Extension Station, Crop Improvement Division, Pingtung, 900, Taiwan
6 - Pingtung University of Science and Technology, Graduate Institute of Biotechnology, No. 1, Hseuhfu Rd. Neipu, Pingtung, 912, Taiwan

Keywords:
Toxicodendron redicans
spp. hispidum
spp. orientale
Rhus ambigua
population genetics
phylogeography.

Presentation Type: Symposium or Colloquium Presentation
Session: C01
Location: Boulevard B/Hilton
Date: Tuesday, July 10th, 2007
Time: 11:00 AM
Number: C01011
Abstract ID:840


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