臺灣水稻品種之譜系分析：Ⅰ.日本引種間之親緣關係

Pedigree Analysis of Rice Varieties of Taiwan: Ⅰ. Relationships among Japanese Introductions

吳文欽(Wen-Chin Wu) ； 林茂森(Maw-Sun Lin)

《作物、環境與生物資訊》 5卷4期 (2008/12) Pp. 248-257

https://doi.org/10.30061/CEB.200812.0004

摘要

引種在育種上有助於作物品種的改良，本研究以譜系分析的方法，來瞭解臺灣稉稻品種育成過程中，日本引種參與的程度，並估算引種間的親緣係數(coefficient of parentage)。分析160多個稉稻品種及品系，可追溯至55個日本及1個韓國引種。這些引種中，17個與其他引種無親緣關係。互有親緣關係的39個引種，經歸群分析(cluster analysis)產生8群，最大的兩群親緣關係也最高；這兩群共有18個引種，其平均親緣係數為0.298，都是與越光有很高親緣關係的種原。就改良食味性而言，臺灣及日本品種都出自相同的遺傳來源。

關鍵字

譜系 ； 親緣係數 ； 水稻

並列摘要

Introduction of elite germplasm is commonly performed in variety development to improve agronomic traits of local varieties. Using pedigree analysis, the objectives of this study were to examine the pedigrees of Japonica rice (Oryza sativa L.) varieties of Taiwan, and to monitor the involvement of Japanese introductions during variety development. A total of fifty-five Japanese and one Korean introductions were used for cross combinations. Among them, 17 were unrelated to the others. Cluster analysis based on 39 introductions produced 8 groups. Two of the largest groups were closely related and consisted of 18 introductions. The mean coefficient of parentage between 18 introductions was 0.298. These two groups mainly contained Koshihikari and varieties derived from Koshihikari. Both Japanese and Taiwanese varieties with good eating quality were developed from the common source.

並列關鍵字

Pedigree ； Coefficient of parentage ； Rice