臺灣裡白葉薯榔（Dioscorea matsudae Hayata）植株性狀遺傳變異研究

Genetic variation of morphological characteristics for Dioscorea matsudae Hayata in Taiwan

龔財立(Tsai-Li Kung) ； 林順福(Shun-Fu Lin)

《桃園區農業改良場研究彙報》 80期 (2016/12) Pp. 1-24

摘要

藉由臺灣裡白葉薯榔種原8個質量性狀及9個數量性狀調查，以評估其種原遺傳變異。結果顯示，8個質量性狀中以莖蔓顏色及芽色性狀頻度分佈較均勻，可供遺傳變異評估及種原鑑定參考，輔以9個數量性狀，以增加種原評估或鑑定效果。9個數量性狀中葉柄直徑、葉前部寬度及葉中部寬度等3個性狀適合作為辨識種原重要指標。以群聚分析評估裡白葉薯榔種原植株外表性狀遺傳歧異性，結果顯示地區族群相互重疊。本研究對臺灣裡白葉薯榔種原植株性狀進行調查，並建立其種原蒐集、評估及利用上重要資訊。

關鍵字

遺傳歧異性 ； 山藥 ； 種原收集 ； 植株外表性狀 ； 裡白葉薯榔

並列摘要

Eight qualitative and nine quantitative traits were investigated to estimate genetic variation of D. matsudae Hayata in Taiwan. Results of the distribution frequency showed that stem color and bud color were suitable for genetic variation assessment and species identification. Petiole d iameter, terminal leaf width and medial leaf width could be used as important indicators for species identification. Cluster analysis showed obviously overlapping distribution in regions. This study established useful information for germplasm collection, evaluation and application of D. matsudae Hayata in Taiwan

並列關鍵字

genetic diversity ； yam ； germplasm collection ； morphological characteristic ； Dioscorea matsudae Hayata