大豆屬(Glycine spp.)의 形態的 特性에 의한 類緣關係 分析

Genetic diversity in glycine species based on morphological characters

Discovery and transfer of useful characters of wild species into the elite lines may facilitate the development of crop varieties with broad genetic bases. In this study, morphological relationships among fourteen Glycine species was analyzed on basis of twenty-five morphological characters. The upper five principle components contracted from twenty-five morphological characters by the principle component analysis accounted for about 72% of the total variation. The subgenus Soja; G. max, G. gracilis, and G. soja were clearly seperated from the subgenus Glycine; G. arenaria, G. falcata, G. canescens, G. latifolia, G. microphylla, and G. tomentella by the scatter diagrams distributed on the plane of the first and second or the first and third principle components. The cluster analysis and morphological characteristics of G. cyrtoloba and G. curvata were very similar, but they are distinguished from tri-compound leaves at the unifoliate leaf node. Fourteen Glycine species could be classified into eight major groups at the average distance of 0.75 and fourteen sub-groups at the average distance of 0.45, that is, into Group Ⅰ: G. max; Group Ⅱ: A: G. gracilis, B: G. soja; Group Ⅲ: G. microphylla; Group Ⅳ: G. tomentella (2n=38, 40, 78, 80) ; Group Ⅴ: A: G. tabacina (2n=120), B: G. tabacina(2n =40, 80) ; Group Ⅵ: A: G. clandestine, B: G. canescens; Group Ⅶ: A: G. latifolia, B: G. tabacina (2n=40), G. latrobeana, C: G. cyrtoloba, G. curvata; and Group Ⅷ: A: G. falcata, B: G. arenaria.