Lian Yun, Yuan Ming, Wei He, Li Jinying, Ding Binke, Wang Jinshe, Lu Weiguo, Koch Georg
Henan Academy of Crop Molecular Breeding, Henan Academy of Agricultural Sciences, Zhengzhou, China.
Qiqihar Branch of Heilongjiang Academy of Agricultural Sciences, Qiqihar, Heilongjiang, China.
Front Plant Sci. 2023 Mar 7;14:1143676. doi: 10.3389/fpls.2023.1143676. eCollection 2023.
Soybean cyst nematode (SCN, , HG) is one of the severe pests in plant-parasitic nematodes, which impairs root development and causes severe losses in soybean production worldwide. Breeding SCN-resistant cultivars is an important measure for securing harvests without affecting the environment, as can be done with pesticides. The majority of genetic resources for plant pest resistances are found in wild or closely related species which are often difficult to use in breeding due to crossing barriers or close linkage with unfavorable agronomic traits. In this study, 12 soybean cultivars were evaluated for their marker haplotype at the and SCN resistance loci and their SCN resistance tested against multiple races in environmentally controlled bioassays. The results showed that all 12 cultivars displayed Peking-type resistance marker haplotypes and all of them proved to be resistant to multiple SCN races. These cultivars provide potential for improving resistance of soybean as donor parent in breeding and can contribute to reduce SCN field populations as part of a sustainable agriculture management.
大豆胞囊线虫（SCN，，HG）是植物寄生线虫中的严重害虫之一，它会损害根系发育并在全球范围内导致大豆产量严重损失。培育抗SCN品种是在不影响环境的情况下确保收成的一项重要措施，这与使用农药的方式不同。大多数植物抗虫性的遗传资源存在于野生或近缘物种中，由于杂交障碍或与不良农艺性状紧密连锁，这些资源在育种中往往难以利用。在本研究中，对12个大豆品种在和SCN抗性位点的标记单倍型进行了评估，并在环境控制的生物测定中针对多个小种测试了它们的SCN抗性。结果表明，所有12个品种都表现出北京型抗性标记单倍型，并且它们都被证明对多个SCN小种具有抗性。这些品种作为育种中的供体亲本，具有提高大豆抗性的潜力，并且作为可持续农业管理的一部分，有助于减少田间SCN种群数量。
