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Abstract：
Comprehending the phylogeography of invasive organisms enhances our insight into their distribution dynamics, which is instrumental for the development of effective prevention and management strategies. In China, Pomacea canaliculata and Pomacea maculata are the two most widespread and damaging species of the non-native Pomacea spp.. Given this species\' rapid spread throughout country, it is urgent to investigate the genetic diversity and structure of its different geographic populations, a task undertaken in the current study using the COI and ITS1 mitochondrial and ribosomal DNA genes, respectively. The result of this study, based on a nationwide systematic survey, a collection of Pomacea spp., and the identification of cryptic species, showed that there is a degree of genetic diversity and differentiation in P. canaliculata, and that all of its variations are mainly due to differences between individuals within different geographical populations. Indeed, this species contains multiple haplotypes, but none of them form a systematic geographical population structure. Furthermore, the COI gene exhibits higher genetic diversity than the ITS1 gene. Our study further clarifies the invasive pathways and dispersal patterns of P. canaliculata in China to provide a theoretical basis.
摘要：
了解入侵生物的系统地理学可以增强我们对其分布动态的了解，这有助于制定有效的预防和管理策略。在中国,Pomaceacanaliculata和Pomaceamaculata是非本地Pomaceaspp的两个最普遍和最具破坏性的物种。.鉴于这个物种在全国迅速传播，迫切需要研究其不同地理种群的遗传多样性和结构，当前研究中使用COI和ITS1线粒体和核糖体DNA基因进行的一项任务，分别。这项研究的结果，根据全国范围的系统调查，一组Pomaceaspp.,以及神秘物种的鉴定，结果表明，泪珠具有一定程度的遗传多样性和分化，它的所有变化主要是由于不同地理人口中的个体之间的差异。的确,这个物种包含多个单倍型，但是它们都没有形成系统的地理人口结构。此外，COI基因比ITS1基因表现出更高的遗传多样性。我们的研究进一步阐明了中国泪珠的入侵途径和扩散模式，提供了理论依据。
