Studies on Genetic Linkage of Cymbidium spp. by Phenotype

Abstract

Morphological traits and linkage cluster analysis were used to study the identification and discrimination of Cymbidium species. The data of phenotype characters and growth habit showed that the ten Cymbidium spp. can be discriminated followed the order of serrulated margin of leaf, leaf shape , leaf size, and growth habit. However, fifteen cultivars of Cymbidium can only be partly discriminated with leaf stripes and leaf shape. The results of linkage cluster analysis is complementary to morphological traits analysis.本研究以台灣所產的蕙蘭屬種原為材料,調查植物外觀之園藝性狀,並以外表性狀作為指標,比較不同種原間之相似性,再經NTSYS程式建立種原間遺傳連鎖群之關係,探討以植株外表性狀做為種原間親緣性研究之可行性。調查十種蕙蘭屬不同種職務(四季蘭、寒蘭、觀音素心蘭、鳳蘭、報歲蘭、東亞蘭、金稜邊、春蘭、管草蘭與綠花竹伯蘭)、二種素心蘭(觀音素心蘭與鐵骨素心蘭)、十一種報歲蘭品系(報歲蘭、'瑞寶'、'陽明錦'、'雪白爪'、'金山'、聖紀光、'旭晃'、'石門'、'桃姬'、'金華山'與'十八學士')及二個春蘭品系(春蘭與細葉春之外表園藝性狀及生長習性。結果顯示十種蕙蘭屬之不同品系的植株可依葉緣構造、葉片形態、葉片大小及生長習性等順序將其完全分類;群體分析結果與檢索表的分類是可相輔相成的,而群體分析更能顯示出族群性狀之連鎖相關性。十五種蕙蘭品系,依葉藝或花藝的變化及葉緣型態構造等順序可將其部份分類;然而品種間有太多相似的特徵時,群體分析之外表型連鎖關係較無意義

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Last time updated on 16/06/2016

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