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題 名 | 玉山國家公園境內紅檜之微衛星DNA研究=Microsatellite Fingerprinting of Chamacyparis Formosensis in Yuan-Shan National Park |
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作 者 | 黃啟俊; 林其永; 王國雄; 許再文; 蔣鎮宇; | 書刊名 | 國家公園學報 |
卷 期 | 17:1 2007.06[民96.06] |
頁 次 | 頁17-32 |
分類號 | 436.12 |
關鍵詞 | 紅檜; 分子指紋; 微衛星DNA; 保育; Chamaecypairs formosensis; Conservation; Fingerprinting; Microsatellite DNA; |
語 文 | 中文(Chinese) |
中文摘要 | 分子指紋技術已廣泛應用於生物保育,其中基因體中的微衛星DNA因具有高解析力及變異性的特性,使得此一分子技術在物種之保育及遺傳多樣性的分析上提供了快速又可靠的工具。本研究針對之物種紅檜,其不論在林業、觀光或園藝上均極具價值,鑑於過去濫採盜伐等人為因素干擾造成紅檜野外族群受到極大的衝擊,針對紅檜野外族群進行族群遺傳結構及歧異度的分析,研究結果顯示紅檜野外族群仍維持高度遺傳歧異度,其中又以南橫地區檜谷的族群遺傳歧異度為最高,可考慮作為保育遺傳多樣性的熱點,紅檜雖然曾受到過去砍伐影響而降低老樹數量及分布,但仍保有較高之遺傳歧異度,因此針對紅檜擬定保育策略時,首重於維持野外族群數量及棲地完整性以降低外在因素干擾,微衛星DNA的高度變異是以區分紅檜巨木個體及族群,提供了紅檜的分子身份證。 |
英文摘要 | DNA fingerprinting has been widely applied to examine the genetic variation for the purpose of biological conservation. Microsatellites DNA with short sequence repeats provide high variability and high resolution in assessing population genetic structure. In this study, genetic diversity and population structure of Chamacyparis formosensis Matsumura were examined. In the past decades, human overexploitation has caused the population decline in the relic species. The microsatellite DNA diversity of C. formosensis is high within populations and species. Population of South-cross-island highway that processed the highest level of genetic diversity should be considered as a hot spot, as indicated by its demography. For maintaining the genetic diversity of C. formosensis, lowering down the disturbances that impact the habitats and increasing the effective population size are required. Microsatellite DNAs, which are able to distinguish individuals and populations, provide molecular ID for conservation. |
本系統中英文摘要資訊取自各篇刊載內容。