利用Fhb1基因功能标记选择提高黄淮冬麦区小麦品种对赤霉病的抗性

张宏军, 宿振起, 柏贵华, 张旭, 马鸿翔, 李腾, 邓云, 买春艳, 于立强, 刘宏伟, 杨丽, 李洪杰, 周阳

Improvement of Resistance of Wheat Cultivars to Fusarium Head Blight in the Yellow-Huai Rivers Valley Winter Wheat Zone with Functional Marker Selection of Fhb1 Gene

Hong-Jun ZHANG, Zhen-Qi SU, Gui-Hua BAI, Xu ZHANG, Hong-Xiang MA, Teng LI, Yun DENG, Chun-Yan MAI, Li-Qiang YU, Hong-Wei LIU, Li YANG, Hong-Jie LI, Yang ZHOU

图2 携带不同供体Fhb1基因回交后代与轮回亲本、中感对照及不携带Fhb1基因回交后代间病小穗数和病情指数比较 携带Fhb1基因的所有回交后代与轮回亲本周麦16 (A)、中感对照淮麦20 (B)和不携带Fhb1基因的所有回交后代(C)病小穗数和病情指数比较。携带宁麦9号Fhb1基因的回交后代(D)、携带生选6号Fhb1基因的回交后代(E)、携带建阳798 Fhb1基因的回交后代(F)、携带建阳84 Fhb1基因的回交后代(G)、携带苏麦3号Fhb1基因的回交后代(H)和携带宁麦13 Fhb1基因的回交后代(I)分别与其不携带Fhb1基因的回交后代间病小穗数和病情指数比较。NDS: 病小穗数(人工接种); DI: 病情指数(自然发病)。++: 携带Fhb1基因的所有回交后代; RP: 轮回亲本; MS: 中感对照; ––: 不携带Fhb1基因的所有回交后代; +: 携带Fhb1基因的回交后代; –: 不携带Fhb1基因的回交后代。误差线上*和**分别表示在P < 0.05和P < 0.01水平下差异显著。

Fig. 2 Comparison of number of diseased spikelets and disease index between backcrossing progenies with Fhb1 gene from different donors and recurrent parent, moderately susceptible control and the backcrossing progenies without Fhb1 gene Comparisons of the number of diseased spikelets and disease index were carried out between all Fhb1 backcrossing progenies and the recurrent parent Zhoumai 16 (A), the moderately susceptible control Huaimai 20 (B) and all non-Fhb1 backcrossing progenies (C), and between non-Fhb1 and Fhb1 backcrossing progenies from the donor cultivars Ningmai 9 (D), Shengxuan 6 (E), Jianyang 798 (F), Jianyang 84 (G), Sumai 3 (H) and Ningmai 13 (I). NDS: number of diseased spikelets (floret-inoculation method); DI: disease index (natural infection nursery); ++: all Fhb1 backcrossing progenies; RP: recurrent parent; MS: moderately susceptible control; ––: all Fhb1 backcrossing progenies; +: Fhb1 backcrossing progenies; –: non-Fhb1 backcrossing progenies. * and ** above the error bars indicate significant difference at P < 0.05 and P < 0.01, respectively.