臺灣博碩士論文加值系統

以國內種苗公司的49個番椒品種(Capsicum annuum L.)的外觀形態性狀進
行群叢分析(cluster analysis)，並篩選對農友種苗公司的7個品種具有
多型性的RAPD(random amplified polymorphic DNA)標誌之引子(
primers)，鑑別分析其他42個品種。番椒品種的形態性狀鑑別，依據「國
家作物種原中心」所訂定「番椒品種特性調查項目」的分類標準，25項性
狀調查分析結果顯示以種子、葉片、花器的11項性狀不易區別各品種的差
異，而以果實的14項性狀較易區別出各品種間的差異，但仍無法將全部供
試品種完全鑑別區分。自110組逢機引子(random primers)中篩選出
UBC-327、UBC-484、UBC-002、UBC-005、UBC-019、UBC-020、UBC-042、
UBC-043、UBC-066、及UBC-084等10組對農友種苗公司的7個品種具有多型
性的RAPD標誌之引子，對其他42個供試品種亦具有效的完全鑑別區分，最
遠的遺傳距離約為81%。從各品種的性狀特徵與RAPD條帶圖譜的比對，得
到有UBC-019m(1330bp)條帶或有UBC-020j(1800bp)條帶的品種為辣椒品種
，有UBC-043e(1300bp)條帶的為強辣、果型瘦小、果面無條溝的辣椒品種
，若有UBC-020j(1800bp)條帶，而無UBC-043e(1300bp)條帶的辣椒品種，
則如‵和星′與‵群星′品種一樣為微辣、果型寬大、果面有條溝的性狀
。而形態性狀與RAPD標誌群叢分析中，供試品種明顯區分為甜椒和辣椒品
種兩大群，農友種苗公司的‵天王星′和‵巨星′二個品種的親緣關係最
近，農友種苗公司的‵和星′、‵群星′、與生生種子公司的‵麗方′、
‵夏鐘′等四個品種分在同一群內，農友種苗公司的‵織女星′、‵美星
′與生生種子公司的‵友方′、‵富方′、‵豔方′等五個品種分在同一
群內，其他品種間的相對親緣關係之歸群結果也大致相同。

Morphological traits and randomly amplified polymorphic DNA
(RAPD) markers are used to identify their relationship of 49
pepper(Capsicum annuum L.) cultivars from Know You and Evergrow
Seed Companies. Twenty five horticultural traits based on the
classification system of National Plant Genetic Resource Center
showed that the morphological traits of seed, leaf, flower, and
fruit can be used to distinguish 49 Capsicum annuum L.
cultivars. By utilization of the differences of 14 fruit
characteristics to test these 49 cultivars that they could not
be fully distinguished by the morphological traits along.A total
of 10 DNA primers are selected from 110 random primers which has
shown the polymorphic patterns among 7 pepper cultivars from
Know You Seed Company. Ten of the 110 primers, i. e. UBC-327,
UBC-484, UBC-002, UBC-005, UBC-019, UBC-020, UBC-042, UBC-043,
UBC-066, UBC-084, showed polymorphism and could distinguish all
49 Capsicum annuum L. cultivars. The least similarity of cluster
analysis is about 81% among cultivars by 10 primers.Pepper
cultivars with UBC-019m(1330bp) or UBC-020j(1800bp) band belong
to group of hot pepper cultivars with UBC-043e(1300bp) band had
strong pungency, narrower fruit shape, and smooth fruit surface.
Hot pepper only showed cultivars with UBC-020j(1800bp) band but
without UBC-043e(1300bp) band are slight pungency , wider fruit
shape, and groove fruit surface, such as ‵Peace Star′ and ‵
Group Stars′ cultivars of Know You Seed Company. The
dendrograms displayed sweet pepper and hot pepper can be
distinguished through the cluster analysis of using RAPD
markers. Cultivar ‵Uranus′ showed proximate genetic
relationship with ‵Big Star′ of Know You Seed Company. And
Know You cultivars of ‵Peace Star′ and ‵Group Stars′ were
clustered in the same group with Evergrow Seed Company cultivars
of ‵Lady Square′ and ‵Summer Bell′. The same as ‵Vega′ and
‵Beauty Bell′ cultivars of Know You Seed Company and ‵Square
Lamuyo′, ‵Rich Square′, and ‵Blocky Red′ cultivars of
Evergrow Seed Company. The result of genetic relationship among
49 Capsicum annuum L. cultivars based on RAPD markers are
similarity with cluster analysis of morphological traits.