中国高油酸花生种质创制、品种选育进展与建议

High-Oleic Peanut Germplasm Enhancement and Cultivar Releases in China:Main Achievements and Suggestions

除高油酸自然突变体外,中国通过辐射诱变、化学诱变已创制出新的高油酸花生突变体。从花生栽培种与不亲和野生种Arachis rigonii杂交后代中鉴定出FAD2G插入型新突变,不同于国内外已报道的FAD2B A插入型突变。中国迄今已育成14个高油酸花生品种,通过省级或国家级区试。中国高油酸花生品种的产量潜力和综合抗性水平尚有进一步提升的空间,高油酸花生品种区试和扩繁工作亟待重视和加强,高油酸花生相关标准须尽快制定,以加速高油酸花生产业化进程。

In addition to high-oleic peanut natural mutants, new irradiation /chemical mutants have also been obtained in China.Different from the previously reported 441_442 insA in FAD 2B , a novel mutation in FAD 2B with G insertion in the same position was identified from hybrid derivatives be-tween the cultivated peanut and an incompatible Arachis species Arachis rigonii .Up to now, 14 high-oleic peanut cultivars have been released by provincial /national authorities in China.However, there is still room for further improvement in yield potentials and stress resistances.Pre-release regional varietal eval-uation tests and variety multiplication should be strengthened, and provincial /national standards related to high-oleic peanut formulated to promote the industrialization process of high-oleic peanut.