Microgeographic Population Genetic Structure of Baylisascaris procyonis (Nematoda: Ascaroidae) in Western Michigan Indicates the Grand River Is a Barrier to Gene Flow

Sarkissian, Christina A.; Campbell, S. A.; Dharmarajan, Guha; Jacquot, Joseph J.; Page, L. Kristen; Graham, Douglas H.

doi:10.1645/15-767

Cited by 8 publications

(3 citation statements)

References 52 publications

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“…Numerous studies of the Northeastern and Midwestern United States as well as Ontario have demonstrated the aforementioned seasonal trend of infection in raccoons (e.g., Sarkissian et al, 2015). In a study of raccoon fecal samples in upstate New York, noted that despite collecting for 11 months, 80% of the positive samples were collected in the fall.…”

Section: Seasonmentioning

confidence: 99%

Spatio-temporal clustering of Baylisascaris procyonis, a zoonotic parasite, in raccoons across different landscapes in southern Ontario

French

Pearl

Peregrine

et al. 2020

Spatial and Spatio-temporal Epidemiology

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Section: Seasonmentioning

confidence: 99%

Spatio-temporal clustering of Baylisascaris procyonis, a zoonotic parasite, in raccoons across different landscapes in southern Ontario

French

Pearl

Peregrine

et al. 2020

Spatial and Spatio-temporal Epidemiology

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“…The population genetics of Baylisascaris procyonis infecting raccoons ( Procyon lotor ) has been studied using both ribosomal and microsatellite loci in its native range [ 140 , 141 ], with microsatellite loci revealing genetic differentiation across the Grand River (Michigan, USA). Among invasive B. procyonis populations in Germany, two well-differentiated clades have been detected by both ITS and mitochondrial sequence analysis, suggesting two independent introductions of B. procyonis into Germany [ 142 ].…”

Section: Influence Of Anthropogenic Disruption On Parasitic Nematode mentioning

confidence: 99%

The population genetics of parasitic nematodes of wild animals

Cole

Viney

2018

Parasites Vectors

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Parasitic nematodes are highly diverse and common, infecting virtually all animal species, and the importance of their roles in natural ecosystems is increasingly becoming apparent. How genes flow within and among populations of these parasites - their population genetics - has profound implications for the epidemiology of host infection and disease, and for the response of parasite populations to selection pressures. The population genetics of nematode parasites of wild animals may have consequences for host conservation, or influence the risk of zoonotic disease. Host movement has long been recognised as an important determinant of parasitic nematode population genetic structure, and recent research has also highlighted the importance of nematode life histories, environmental conditions, and other aspects of host ecology. Commonly, factors influencing parasitic nematode population genetics have been studied in isolation, such that an integrated view of the drivers of population genetic structure of parasitic nematodes is still lacking. Here, we seek to provide a comprehensive, broad, and integrative picture of these factors in parasitic nematodes of wild animals that will be a useful resource for investigators studying non-model parasitic nematodes in natural ecosystems. Increasingly, new methods of analysing the population genetics of nematodes are becoming available, and we consider the opportunities that these afford in resolving hitherto inaccessible questions of the population genetics of these important animals.

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“…High genetic variation within the parasite populations on each mountain range was observed, but the lack ofpopulation diversity across the mountain ranges suggested a homogenous parasite population, based on the complete mitochondrial cytb, atp6 and cox1 gene targets. In contrast, use of microsatellite markers revealed two genetic clusters in B. procyonis across the Grand River in Western Michigan, USA (Sarkissian et al., 2015). Lack of population structure in B. schroederi parasites across the mountain ranges in China indicates the fast evolving rate of parasites compared to their hosts and microsatellite markers may be able to further confirm if there is any recent genetic divergence between the parasite populations.…”

Section: Molecular and Diagnostic Approaches To The Study Of Baylisasmentioning

confidence: 99%

Beyond the raccoon roundworm: The natural history of non-raccoon Baylisascaris species in the New World

Sapp¹,

Gupta²,

Martin³

et al. 2017

International Journal for Parasitology: Parasites and Wildlife

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A total of 10 species of Baylisascaris, a genus of ascaridoid nematodes, occur worldwide and 6 of them occur in the New World. Most of the Baylisascaris species have a similar life cycle with carnivorous mammals or marsupials serving as definitive hosts and a smaller prey host serving as paratenic (or intermediate) hosts. However, one species in rodents is unique in that it only has one host. Considerable research has been conducted on B. procyonis, the raccoon roundworm, as it is a well-known cause of severe to fatal neurologic disease in humans and many wildlife species. However, other Baylisascaris species could cause larva migrans but research on them is limited in comparison. In addition to concerns related to the potential impacts of larva migrans on potential paratenic hosts, there are many questions about the geographic ranges, definitive and paratenic host diversity, and general ecology of these non-raccoon Baylisascaris species. Here, we provide a comprehensive review of the current knowledge of New World Baylisascaris species, including B. columnaris of skunks, B. transfuga and B. venezuelensis of bears, B. laevis of sciurids, B. devosi of gulonids, B. melis of badgers, and B. potosis of kinkajou. Discussed are what is known regarding the morphology, host range, geographic distribution, ecoepidemiology, infection dynamics in definitive and paratenic hosts, treatment, and control of these under-studied species. Also, we discuss the currently used molecular tools used to investigate this group of parasites. Because of morphologic similarities among larval stages of sympatric Baylisascaris species, these molecular tools should provide critical insight into these poorly-understood areas, especially paratenic and definitive host diversity and the possible risk these parasites pose to the health to the former group. This, paired with traditional experimental infections, morphological analysis, and field surveys will lead to a greater understanding of this interesting and important nematode genus.

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Microgeographic Population Genetic Structure of Baylisascaris procyonis (Nematoda: Ascaroidae) in Western Michigan Indicates the Grand River Is a Barrier to Gene Flow

Cited by 8 publications

References 52 publications

Spatio-temporal clustering of Baylisascaris procyonis, a zoonotic parasite, in raccoons across different landscapes in southern Ontario

Spatio-temporal clustering of Baylisascaris procyonis, a zoonotic parasite, in raccoons across different landscapes in southern Ontario

The population genetics of parasitic nematodes of wild animals

Beyond the raccoon roundworm: The natural history of non-raccoon Baylisascaris species in the New World

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