Holobiont suture zones: Parasite evidence across the European house mouse hybrid zone

Bellocq, Joëlle Goüy de; Wasimuddin, .; Ribas, Alexis; Bryja, Josef; Piálek, Jaroslav; Baird, Stuart J. E.

doi:10.1111/mec.14938

Cited by 20 publications

(15 citation statements)

References 88 publications

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“…Here, we summarize the few available examples of intraspecific genetic sampling of Pneumocystis from multiple localities across a host range. In two well-studied Pneumocystis species, the human-associated P. jirovecii and mouse (Mus musculus)-associated P. murina, variation has been observed at only two or three bases out of the approximately 250 bp long mtLSU fragment (0.8% to 1.2%) [19,20]. Pneumocystis sequences were recovered from populations of Mexican free-tailed bats (Tadarida brasiliensis) from Mexico and Argentina, with maximum divergence of 0.78% at mtLSU and 1.83% at mtSSU; in the common pipistrelle bat (Pipistrellus pipistrellus), no divergence was observed among individuals at mtLSU, but 0.49% divergence was seen at mtSSU [9].…”

Section: Expected Divergence At Pneumocystis Barcodesmentioning

confidence: 99%

Rethinking host range in Pneumocystis

2020

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Section: Expected Divergence At Pneumocystis Barcodesmentioning

confidence: 99%

Rethinking host range in Pneumocystis

2020

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“…Although several recent studies have described the existence of hybrid Pneumocystis using multiple genetic markers [27], isoenzymatic and first genetic data suggested that speciation in the Pneumocystis genus resulted from long genetic isolation and a potential co-speciation process [28,29]. The approximate time of Pneumocystis speciation was estimated by Keely et al [30], who examined the genetic variations at rRNA and DHFR loci between different Pneumocystis species.…”

Section: Pneumocystis Organisms As Stenoxenic Organisms With a Long Hmentioning

confidence: 99%

Pneumocystis Species Co-evolution: State-of-the-Art Review

Demanche¹,

Guillot²,

Chabé³

2019

obm genet

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Pneumocystis spp. are a group of fungi that are known for causing opportunistic infections in immunocompromised individuals. It was only at the end of the 20th century that the scientific community challenged the notion of a unique species in the genus Pneumocystis (i.e., Pneumocystis carinii) that drastically changed the understanding of the natural history of pneumocystosis. It is now accepted that the Pneumocystis genus comprises a group of heterogenous fungi having multiple stenoxenic biological entities. These are widely distributed in the ecosystems and closely adapt to the mammalian species they colonize. The infection is transmitted via airborne route, allowing them to successfully dwell in the lungs of infected individuals. This article reviews some of the atypical features of these fungal microorganisms, namely host specificity and their parallel history with the mammalian hosts in which they co-evolve. Pneumocystis organisms can serve as powerful tools for phylogenetic and phylogeographic studies in mammals. Finally, the review challenges the genetic markers used historically to study the genetic diversity of

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“…Although many studies have been devoted to comparing phylogenies and population structures of host–parasite associations, only a few analysed these processes within the context of host secondary contact zones and hybrid zones (reviewed by Theodosopoulos et al., 2019), and only recently, de Bellocq et al. (2018) focused on detecting a hybrid zone in parasite populations. Using two parasites of the house mouse Mus musculus , the nematode Syphacia obvelata and the fungus Pneumocystis murina , they found that within the host's hybrid zone both parasites create their own hybrid zone.…”

Section: Introductionmentioning

confidence: 99%

“Parasite turnover zone” at secondary contact: A new pattern in host–parasite population genetics

et al. 2020

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We describe here a new pattern of population genetic structure in a host-parasite system that can arise after secondary contact of previously isolated populations. Due to different generation times, and therefore different tempos of molecular evolution, the host and parasite populations reach different degrees of genetic differentiation during their separation (e.g., in refugia). Consequently, upon secondary contact, the host populations are able to re-establish a single panmictic population across the area of contact, while the parasite populations stop their dispersal at the secondary contact zone and create a narrow hybrid zone. From the host's perspective, the parasite's hybrid zone functions on a microevolutionary scale as a "parasite turnover zone": while the hosts are passing from area A to area B, their parasites turn genetically from the area A genotypes to the area B genotypes. We demonstrate this novel pattern with a model composed of Apodemus mice and Polyplax lice by comparing maternally inherited markers (complete mitochondrial genomes, and complete genomes of the vertically transmitted symbiont Legionella polyplacis) with single nucleotide polymorphisms derived from louse genomic data. We discuss the circumstances that may lead to this pattern and possible reasons why it has been overlooked in studies of host-parasite population genetics.

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Holobiont suture zones: Parasite evidence across the European house mouse hybrid zone

Cited by 20 publications

References 88 publications

Rethinking host range in Pneumocystis

Rethinking host range in Pneumocystis

Pneumocystis Species Co-evolution: State-of-the-Art Review

“Parasite turnover zone” at secondary contact: A new pattern in host–parasite population genetics

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