水稻矮化宽叶突变体osdwl1的生理特性和基因定位

黄妍, 贺焕焕, 谢之耀, 李丹莹, 赵超越, 吴鑫, 黄福灯, 程方民, 潘刚

Physiological characters and gene mapping of a dwarf and wide-leaf mutant osdwl1 in rice (Oryza sativa L.)

HUANG Yan, HE Huan-Huan, XIE Zhi-Yao, LI Dan-Ying, ZHAO Chao-Yue, WU Xin, HUANG Fu-Deng, CHENG Fang-Min, PAN Gang

图1 突变体及其野生型的表型 A: 幼苗期; B: 开花初期; C: 开花初期叶片, 其中F代表剑叶, 2~4分别为倒二叶至倒四叶; D: 成熟期; E: 成熟期穗及茎节, P代表小穗, 1~5分别为倒一节至倒五节; F: 2019年成熟期各茎节长度; G~H: 野生型对照(G)和突变体(H)倒二茎节的纵切面。A~F的标尺为20 cm, G~H的标尺为20 μm。* 表示在0.05水平上差异显著; ** 表示在0.01水平上差异显著(t-test)。

Fig. 1 Phenotypes of osdwl1 and its wild-type (WT) plants at the different growth stages A: seedling stage; B: early-flowering stage; C: leaves at the early-flowering stage, and F means flag leaf and 2-4 means 2nd to 4th leaf from top in order, respectively; D: mature stage; E: panicle and the internodes at the mature stage, P means panicle, 1-4 means the 1st to 5th internode from top, respectively; F: the length of different internodes at the mature stage in 2019; G-H: longitudinal sections of the 2nd internode from top in wild-type plants (G) and osdwl1 (H); Bar = 20 cm in A-F; Bar = 20 μm in G-H. Values marked with * and ** indicate significant differences at P < 0.05 and P < 0.01 by Student’s t-test, respectively.