Genetic origin and dispersal of the invasive soybean aphid inferred from population genetic analysis and approximate Bayesian computation

Abstract

Biological invasion is considered among the most important global environmental problems. Knowledge of the source and dispersal routes of invasion could facilitate the eradication and control of invasive species. Soybean aphid, Aphis glycines, is among the most destructive soybean pests. For effective management of this pest, we conducted genetic analyses and approximate Bayesian computation analysis to determine the origins and dispersal of the aphid species, as well as the source of its invasion in the USA, using 8 microsatellite loci and the mitochondrial cytochrome c oxidase subunit I gene. We were able to identify a significant isolation by distance pattern and 3 genetic lineages in the microsatellite data but not in the mtDNA dataset. The genetic structure showed that the USA population had the closest relationship with those from Korea and Japan, indicating that the 2 latter populations might be the sources of the invasion to the USA. Both population genetic analyses and approximate Bayesian computation showed that the northeastern populations in China were the possible sources of the further spread of A. glycines to Indonesia. The dispersal history of this aphid can provide useful information for pest management strategies and can further help predict areas at risk of invasion.

Genetic analyses reveal regional structure and demographic expansion of the predominant tea pest Empoasca onukii (Hemiptera: Cicadellidae) in China

“…From the viewpoint of genetic diversity, ancestral populations usually possess higher genetic diversity than derived populations. 1,[95][96][97] In our study, the Yunnan populations exhibited a relatively low genetic diversity, while the BS population showed the highest genetic diversity among the sampled populations. These findings indicated high genetic diversity out of the ancestral population, which may be the consequence of the admixture of divergent lineages colonizing the BS region from separate refugia.…”

Human‐mediated eco‐evolutionary processes of the herbivorous insect Hyalopterus arundiniformis during the Holocene

“…The five genes are widely utilized in aphid phylogenetic and phylogeographic studies (e.g. Fang et al, 2017; Fang et al, 2018; Liu et al, 2022; Zhang et al, 2012). All primers and the PCR procedures used in this study are summarized in Table .…”

“…Host plants are believed to have played a pivotal role in shaping aphid speciation and dispersal (Fang et al, 2018; Liu et al, 2022; Zhang et al, 2012). Evidence from archaeological and genomic studies has suggested that the primary host of HAR (i.e.…”

Large-scale geography survey provides insights into the colonization history of a major aphid pest on its cultivated apple host in Europe, North America and North Africa

“…Indeed, asexual reproduction allows for a rapid increase in population size after the colonization of a favorable new environment (Simon et al 2002(Simon et al , 2010Figueroa et al 2018). So far, only a handful of studies have reconstructed the colonization history of aphid crop pests by combining population genetics approaches using the information from SSR, sequence or single nucleotide polymorphism (SNP) markers (Peccoud et al 2008;Zepeda-Paulo et al 2010;Piffaretti et al 2013;Zhang et al 2014;Zhou et al 2015;Kim et al 2016;Fang et al 2018;Morales-Hojas et al 2020;Giordano et al 2020;Leclair et al 2021). These studies demonstrated that aphid species can spread very quickly across the world, probably via plants transported by humans and/or wind.…”