Laboratory and field evaluation of maize resistance to the two-spotted spider mite, Tetranychus urticae
文献类型： 外文期刊
作者： Di, Ning 1 ; Shi, Zi 1 ; Harwood, James D. 1 ; Chen, Yafeng 1 ; Wang, Jiarong 1 ; Zhu, Zhengyang 1 ; Wang, Su 1 ; Desneux, Nicolas 4 ; Zhao, Jiuran 1 ; Ren, Wen 1 ;
作者机构： 1.Beijing Acad Agr & Forestry Sci, Beijing 100097, Peoples R China
2.Minist Agr & Rural Affairs, Key Lab Nat Enemies Insects, Beijing, Peoples R China
3.Beijing Key Lab Maize DNA Fingerprinting & Mol Bre, Beijing, Peoples R China
4.Univ Cote dAzur, INRAE, UMR ISA, F-06000 Nice, France
5.Beijing Xicheng Vocat Sch, Beijing 100037, Peoples R China
关键词： Pest resistance; Maize; Spider mites; Stomatal dimensions
期刊名称：JOURNAL OF PEST SCIENCE （ 影响因子：4.8； 五年影响因子：5.0 ）
ISSN： 1612-4758
年卷期： 2023 年
页码：
收录情况： SCI
摘要： Spider mites are some of the most important agricultural pests worldwide, jeopardizing maize production across many continents. However, mechanisms of resistance to spider mite in maize remain unclear. Here, we report data from resistant and susceptible maize varieties, Jingke968 and Xianyu335 along with their parental lines, and investigate their responses to Tetranychus urticae (Acari: Tetranychidae). A significantly lower female adult mite population and total mite numbers were recorded in the resistant variety, Jingke968, compared to Xianyu335. Similarly, mite fecundity on Jingke968 was substantially lower compared to Xianyu335, which could be associated with its highly resistant parental line Jing92. Stomatal dimensions also showed a close correlation with the fitness of spider mites on the two maize varieties and four parental lines. Tetranychus urticae population numbers under field conditions showed lower mite densities (numbers per plant) in Jingke968 and Jing92 (75% and 89% lower, respectively) than the most sensitive line PH6WC, hinting toward a high level of resistance to spider mites in these maize lines. Our study provides new insights for mechanisms of physical defense to spider mites in maize and contributed to the basis for pest control and breeding of maize varieties.
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