文献类型： 外文期刊

作者： Sun Jing-xuan ¹ ; Li Qian ¹ ; Tan Xiao-ling ¹ ; Fan Jia ¹ ; Zhang Yong ¹ ; Qin Yao-guo ¹ ; Francis, Frederic ² ; Chen Ju-lian ¹ ;

作者机构： 1.Chinese Acad Agr Sci, Inst Plant Protect, State Key Lab Biol Plant Dis & Insect Pests, Beijing 100193, Peoples R China

2.Univ Liege, Dept Funct & Evolutionary Entomol, Gembloux Agrobio Tech, B-5030 Gembloux, Belgium

3.Heilongjiang Acad Agr Sci, Mudanjiang Branch, Mudanjiang 157000, Peoples R China

关键词： Sitobion miscanthi; molecular marker; COI; symbiotic bacteria; phylogenetic tree

期刊名称：JOURNAL OF INTEGRATIVE AGRICULTURE （ 影响因子：4.384； 五年影响因子：4.021 ）

ISSN： 2095-3119

年卷期： 2022 年 21 卷 1 期

页码：

收录情况： SCI

摘要： The wheat aphid, Sitobion miscanthi, is one of the most destructive pests of wheat plants in the temperate regions of China. Little is known about the genetic structure evolution of the different geographic populations of S. miscanthi with its migration. In this study, we investigated the population genetic structure and demographic history of S. miscanthi by analysing 18 geographical populations across China using one mitochondrial gene, COI; one nuclear gene, EF-1 alpha; and two endosymbiont Buchnera genes, gnd and trpA. Analysis of data from the various groups showed high haplotype diversity and low nucleotide variation. SAMOVA analysis did not find a correlation between genetic distance and geographic distance. However, areas with high population diversity exhibited high haplotype diversity. Therefore, we speculate that there are two main natural migration pathways of S. miscanthi in China. One is from Yunnan to the Sichuan Basin, and the other is from Wuhan, Xinyang and Jiaodong Peninsula areas to the northwest. Based on this hypothesis, we inferred that these aphid populations appear first in the southwestern and southern regions and spread to the north with the help of the southeastern and southwestern monsoons, which occur in spring and summer. In autumn, the aphids spread southward with the northeastern and northwestern monsoons.