A multi‐genome analysis approach enables tracking of the invasion of a single <scp>R</scp>ussian wheat aphid (<i><scp>D</scp>iuraphis noxia</i>) clone throughout the <scp>N</scp>ew <scp>W</scp>orld

Zhang, Bo; Edwards, Owain; Kang, Le; Fuller, Susan

doi:10.1111/mec.12714

Cited by 33 publications

(37 citation statements)

References 72 publications

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“…Additionally, we theorized that a short distance step-by-step dispersion also occurred in the same or the neighboring provinces simultaneously. Long distance range expansion was also observed in some invasive species like the Russian wheat aphid, Diuraphis noxia (Zhang et al, 2014). The average gene flow of the five microsatellite loci tested in this study was lower than 1.0, suggesting an inter-population gene flow.…”

Section: Genetic Differentiation Of Tobacco Aphid Populationsmentioning

confidence: 45%

Population genetic structure of Myzus persicae nicotianae (Hemiptera: Aphididae) in China by microsatellite analysis

et al. 2015

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ABSTRACT. The tobacco aphid, Myzus persicae nicotianae (Hemiptera: Aphididae), is an important agricultural pest that feeds on host plants and transmits plant viruses in China. To effectively control this pest, we investigated the genetic variation and genetic structure of 54 populations of tobacco aphids collected in China, using five microsatellite loci. An average of 7 alleles with effective number ranging from 1.5 to 6.6 was detected using these five loci, and the average polymorphic information content (PIC) was 0.652, suggesting that the five selected microsatellite loci were polymorphic and suitable for the study of population genetics. The expected heterozygosities in the populations studied ranged from 0.128 and 0.653, with an average value of 0.464. However, the observed heterozygosities ranged from 0.250 and 0.942 (average = 0.735), revealing a high genetic variability and heterozygosity excess in the Chinese tobacco aphid populations. The global fixation index (F ST ) and mean gene flow (N m ) were 0.34 (P < 0.0001) and 0.50, respectively, suggesting the high genetic differentiation among Chinese populations. The 54 populations of tobacco aphids were classified into two groups. The populations did not cluster geographically, as populations from the same provinces were usually present in different clusters. This was also confirmed by the Mantel test, which showed no significant correlation between the genetic distance and geographical distance or altitude. Long distance migration might be responsible for the lack of distance-related isolation.

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Section: Genetic Differentiation Of Tobacco Aphid Populationsmentioning

confidence: 45%

Population genetic structure of Myzus persicae nicotianae (Hemiptera: Aphididae) in China by microsatellite analysis

et al. 2015

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“…Understanding source populations and spread dynamics may benefit from using nuclear and extranuclear genomes. For instance, in the Russian wheat aphid, Zhang et al (2014) tested patterns of invasion by characterizing more than 500 clones for genetic markers in nuclear DNA, mtDNA and endosymbionts. They were able to show that Turkey and Syria were the most likely sources of invasion to Kenya and South Africa respectively, as well as establishing patterns of invasion into the New World.…”

Section: Identifying Source Populationsmentioning

confidence: 99%

Biological invasions, climate change and genomics

Chown

Hodgins

Griffin

et al. 2014

Evolutionary Applications

225

214

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The rate of biological invasions is expected to increase as the effects of climate change on biological communities become widespread. Climate change enhances habitat disturbance which facilitates the establishment of invasive species, which in turn provides opportunities for hybridization and introgression. These effects influence local biodiversity that can be tracked through genetic and genomic approaches. Metabarcoding and metagenomic approaches provide a way of monitoring some types of communities under climate change for the appearance of invasives. Introgression and hybridization can be followed by the analysis of entire genomes so that rapidly changing areas of the genome are identified and instances of genetic pollution monitored. Genomic markers enable accurate tracking of invasive species’ geographic origin well beyond what was previously possible. New genomic tools are promoting fresh insights into classic questions about invading organisms under climate change, such as the role of genetic variation, local adaptation and climate pre-adaptation in successful invasions. These tools are providing managers with often more effective means to identify potential threats, improve surveillance and assess impacts on communities. We provide a framework for the application of genomic techniques within a management context and also indicate some important limitations in what can be achieved.

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“…While the synonymization clarifies taxonomic identity and helps some aspects of pre-and post-harvest control and market access (Dohino et al, 2016;Hendrichs et al, 2015), they also create new challenges. An organism, whose geographic range extends from Africa, across Asia to the Pacific, might be predicted to exhibit macrogeographic population structuring (Ascunce et al, 2011;Gloria-Soria et al, 2016;Virgilio, Delatte, Backeljau, & De Meyer, 2010;Zhang, Edwards, Kang, & Fuller, 2014). As the International Plant Protection Convention (FAO, 2011) recognizes "Pest" as "any species, strain or biotype of plant, animal or pathogenic agent injurious to plants or plant products," synonymization of taxa does not negate the issue that different geographic populations may still show high levels of population structuring and so be of potential quarantine and trade concern at the "strain" level.…”

Section: Introductionmentioning

confidence: 99%

Population structure of a global agricultural invasive pest, Bactrocera dorsalis (Diptera: Tephritidae)

Qin

Krosch

Schutze

et al. 2018

Evolutionary Applications

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Bactrocera dorsalis, the Oriental fruit fly, is one of the world's most destructive agricultural insect pests and a major impediment to international fresh commodity trade. The genetic structuring of the species across its entire geographic range has never been undertaken, because under a former taxonomy B. dorsalis was divided into four distinct taxonomic entities, each with their own, largely non‐overlapping, distributions. Based on the extensive sampling of six a priori groups from 63 locations, genetic and geometric morphometric datasets were generated to detect macrogeographic population structure, and to determine prior and current invasion pathways of this species. Weak population structure and high genetic diversity were detected among Asian populations. Invasive populations in Africa and Hawaii are inferred to be the result of separate, single invasions from South Asia, while South Asia is also the likely source of other Asian populations. The current northward invasion of B. dorsalis into Central China is the result of multiple, repeated dispersal events, most likely related to fruit trade. Results are discussed in the context of global quarantine, trade, and management of this pest. The recent expansion of the fly into temperate China, with very few associated genetic changes, clearly demonstrates the threat posed by this pest to ecologically similar areas in Europe and North America.

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A multi‐genome analysis approach enables tracking of the invasion of a single Russian wheat aphid (Diuraphis noxia) clone throughout the New World

Cited by 33 publications

References 72 publications

Population genetic structure of Myzus persicae nicotianae (Hemiptera: Aphididae) in China by microsatellite analysis

Population genetic structure of Myzus persicae nicotianae (Hemiptera: Aphididae) in China by microsatellite analysis

Biological invasions, climate change and genomics

Population structure of a global agricultural invasive pest, Bactrocera dorsalis (Diptera: Tephritidae)

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