包籜矢竹族群遺傳變異之研究

Study on population genetic variation of Pseudosasa usawai (Hayata) Makino & Nemoto

韓中梅(Chung-mei May Han)

指導教授 ： 黃生

國立臺灣師範大學/理學院/生物學系/碩士(2000年)

摘要

無資料

關鍵字

包籜矢竹 ； 族群遺傳 ； 親緣地理

並列摘要

ABSTRACT
To investigate the population genetic structure and phylogeography of Pseudosasa usawai (Hayata) Makino & Nemoto in Taiwan, the intergenic spacers of chloroplast DNA (trnT-trnL and trnD-trnT) were sequenced. The results showed that, first of all, the trnD-trnT spacer examined accumulated little genetic variation (π=0.00019); whereas high genetic variation was detected in the trnT-trnL noncoding region（π=0.00366∼0.12619）. Secondly, seed dispersal has little to do with the gene flow among the populations and subpopulations studied as shown in their high degree of population differentiation. And, thirdly, the phylogeographic pattern as shown in the reconstructed network suggested that the present populations of Pseudosasa usawai were expanded from an ancient population at the Shumeiping area during the glacial retreat period and then further migrated uphill as an isolated population as the global climate turned warmer.

並列關鍵字

Pseudosasa usawai ； population genetics ； phylogeography

參考文獻

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