水稻 遺傳子 分析用 遺傳標識基株 育成 Ⅱ. japonica벼 遺傳檢定親으로서 三染色體植物의 育成

Development of genetic marker stocks in rice Ⅱ. Establishment of trisomics as genetic tester in japonica rice

Eleven primary trisomics of the japonica group, developed and made available by lwata and Omura, were crossed as females with Korean bred Seolakbyo. From the F₁, F₂ and BC₁F₁ of each crosses 11 types, of trisomics were identified on the basis of their distinct morphological characters. Leaf character and plant type were useful criteria for the identification of A, E, F and O type trisomics, while B, C, D, G, H, L and N type trisomics were classified by the panicle and glume characters. The female transmission frequency of the extra chromosome of each trisomics ranged from 8.3 to 35% in F₁, from 16.7 to 50% in F₂ and from 14.3 to 50% in BC₁F₁, respectively in this study.