쌀 胚乳의 Amylose含量에 미치는 Wx 因子의 Dosage 効果 1. Base Color의 Isogenic Line을 利用한 交配種子의 Amylose含量

Dosage Effect of Wx Allele on the Amylose Content of Rice Grain 1. Amylose Content of Hybrid Seeds Obtained from Isogenic Lines for Glutinous and Base Color

Isogenic lines for glutinous endosperm and base color in rice were used to obtain different endosperm genotypes, wxwxwx, wxwxWx, WxWxwx and WxWxWx. The base color was used as the marker gene to elliminate the selfed seeds. The amylose content of rice endosperm was significantly different among genotypes. The dosage effect of the Wx allele seemed to be additive in its action on the amylose content, though the amylose content is not directly proportional to the number of Wx dose. The effects of Wx allele to wx and H-Wx allele to L-Wx, the first one dose (xwxw Wx/L, wxwx Wx/H and WxWx/L Wx/H) is most significant and the effect of 2 doses(WxWx wx/L and WxWx wx/H) and 3 doses (WxWxWx/L and WxWxWx/H) were linearly increased.