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首页> 外文期刊>BMC Evolutionary Biology >Migration of Sogatella furcifera between the Greater Mekong Subregion and northern China revealed by mtDNA and SNP
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Migration of Sogatella furcifera between the Greater Mekong Subregion and northern China revealed by mtDNA and SNP

机译：MTDNA和SNP揭示了大湄公河次区域与中国北方北方沼泽地的迁移

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The white-backed planthopper (WBPH), Sogatella furcifera (Horváth) (Hemiptera, Delphacidae), is a migratory pest of rice in Asia. Shandong Province, in northern China, is located on the migration pathway of WBPH between southern and northeast China. The potential sources of WBPH in northern China are poorly understood. We studied the sources of WBPH in Shandong Province by determining the population genetic structure of WBPH in 18 sites distributed in Shandong and in six regions of the Greater Mekong Subregion (GMS). We used mitochondrial gene and single-nucleotide polymorphism (SNP) markers for analysis. All of the WBPH populations studied in the seven regions had low genetic diversity. Pairwise FST values based on mtDNA?ranged from ? 0.061 to 0.285, while FST based on SNP data ranged from ? 0.007 to 0.009. These two molecular markers revealed that 4.40% (mtDNA) and 0.19% (SNP) genetic variation could be explained by the interpopulation variation, while the rest came from intrapopulation variation. The populations in the seven geographic regions comprised four hypothetical genetic clusters (K?=?4) not associated with geographic location. Eighty-four of 129 individuals distributed across the given area were designated as recent migrants or of admixed ancestry. Although the substantial migration presented, a weak but significant correlation between genetic and geographic distances was found (r?=?0.083, P?=?0.004). The Greater Mekong Subregion was the main genetic source of WBPH in Shandong, while other source populations may also exist. The genetic structure of WBPH is shaped by both migration and geographic barriers. These results help clarify the migration route and the source of WBPH in northern China.
机译：白背锅（WBPH），Sogatella Furcifera（Horváth）（河豚，Delphacidae）是亚洲米饭的迁徙害虫。山东省在中国北部，位于中国南部和东北地区之间的WBPH迁徙路径。中国北方WBPH的潜在来源很差。我们通过在山东分布的18个地点和大湄公河次区域（GMS）的六个地区确定WBPH的人口遗传结构研究了山东省WBPH的来源。我们使用线粒体基因和单核苷酸多态性（SNP）标记进行分析。七个地区研究的所有WBPH人群都有低遗传多样性。基于MTDNA的成对FST值？范围从？ 0.061至0.285，而FST基于SNP数据范围从吗？ 0.007至0.009。这两个分子标记显示出4.40％（MTDNA）和0.19％（SNP）遗传变异可以通过口腔间变异来解释，而其余部分来自跨州静脉化变化。七个地理区域中的群体包括与地理位置相关的四个假设遗传簇（K？=？4）。在给定区域分布在给定区域中的八十四个人被指定为最近的移民或混合的祖先。虽然呈现了大量的迁移，发现了遗传和地理距离之间的弱但显着的相关性（R？= 0.083，p？= 0.004）。大湄公河次区域是山东WBPH的主要遗传来源，而其他源人口也可能存在。 WBPH的遗传结构由迁移和地理屏障形成。这些结果有助于澄清中国北方迁徙路线和WBPH的来源。

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