Determinants of haemosporidian single- and co-infection risks in western palearctic birds

Pigeault, Romain; Chevalier, Mathieu; Cozzarolo, Camille-Sophie; Baur, Molly; M, Arlettaz; Cibois, Alice; Keiser, André; Guisan, Antoine; Christe, Philippe; Glaizot, Olivier

doi:10.1016/j.ijpara.2022.05.002

Cited by 7 publications

(4 citation statements)

References 80 publications

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“…The application of CISH tools using parasite-specific probes opens new opportunities to link tissue stages found in wild birds with certain haemosporidian parasites [ 93 , 94 , 95 , 234 , 250 , 251 , 252 ]. This was difficult or impossible to do before the molecular era because co-infections of Apicomplexan parasites are common and even predominating in many avian hosts worldwide [ 4 , 7 , 9 , 10 , 23 , 38 , 40 , 42 , 58 , 105 , 110 , 118 , 253 , 254 , 255 , 256 , 257 , 258 , 259 , 260 , 261 , 262 , 263 , 264 , 265 , 266 , 267 , 268 , 269 , 270 , 271 , 272 , 273 , 274 ]. Recent molecular and microscopic studies show that the morphological diversity of haemosporidian exo-erythrocytic stages is unexpectedly diverse, particularly in Haemoproteus and Leucocytozoon parasites, which have historically been difficult or impossible to link to certain parasite species or lineages, even on genera levels, due to common co-infections […”

Section: Resultsmentioning

confidence: 99%

“…Second, the molecular characterization of Leucocytozoon species is often confused because of common co-infections of parasites belonging to the same genus [ 7 , 10 , 38 , 40 , 42 , 105 , 118 , 119 , 254 , 256 , 257 , 259 , 260 , 261 , 262 , 263 , 268 , 270 , 272 , 273 , 274 ]. Microscopic examination of blood films from many naturally infected birds shows that infection with a single species of Leucocytozoon is rare.…”

Section: Resultsmentioning

confidence: 99%

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Insights into the Biology of Leucocytozoon Species (Haemosporida, Leucocytozoidae): Why Is There Slow Research Progress on Agents of Leucocytozoonosis?

Valkiūnas

Iezhova

2023

Microorganisms

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Blood parasites of the genus Leucocytozoon (Leucocytozoidae) only inhabit birds and represent a readily distinct evolutionary branch of the haemosporidians (Haemosporida, Apicomplexa). Some species cause pathology and even severe leucocytozoonosis in avian hosts, including poultry. The diversity of Leucocytozoon pathogens is remarkable, with over 1400 genetic lineages detected, most of which, however, have not been identified to the species level. At most, approximately 45 morphologically distinct species of Leucocytozoon have been described, but only a few have associated molecular data. This is unfortunate because basic information about named and morphologically recognized Leucocytozoon species is essential for a better understanding of phylogenetically closely related leucocytozoids that are known only by DNA sequence. Despite much research on haemosporidian parasites during the past 30 years, there has not been much progress in taxonomy, vectors, patterns of transmission, pathogenicity, and other aspects of the biology of these cosmopolitan bird pathogens. This study reviewed the available basic information on avian Leucocytozoon species, with particular attention to some obstacles that prevent progress to better understanding the biology of leucocytozoids. Major gaps in current Leucocytozoon species research are discussed, and possible approaches are suggested to resolve some issues that have limited practical parasitological studies of these pathogens.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Insights into the Biology of Leucocytozoon Species (Haemosporida, Leucocytozoidae): Why Is There Slow Research Progress on Agents of Leucocytozoonosis?

Valkiūnas

Iezhova

2023

Microorganisms

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“…However, how exactly phylogenetic, climatic, environmental and behavioural factors influence and form the occurrence and distribution of haemosporidian parasites is still under research (e.g. Pigeault et al 2022;de Angeli Dutra et al 2023).…”

Section: Resultsmentioning

confidence: 99%

High prevalence of haemosporidian parasites in Eurasian Jays

Schumm,

Lederer-Ponzer,

Masello

et al. 2023

Preprint

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Avian haemosporidians are vector-borne blood parasites, which infect a great variety of avian host species. The order Passeriformes has the highest average infection probability; nevertheless, some common species of this order have been rather poorly studied in terms of haemosporidian prevalence and diversity. In this study, we investigated the prevalence of haemosporidians in one of such species, the Eurasian Jay Garrulus glandarius (Corvidae), from a forest population in Hesse, Central Germany. All individuals were infected with at least one haemosporidian genus, i.e. an overall prevalence of 100%. The most common infection pattern was a mixed infection with Haemoproteus and Leucocytozoon, whereas no Plasmodium infection was detected. Our results regarding lineage diversity combined with data from other studies indicate a rather pronounced host-specificity of Haemoproteus and Leucocytozoon lineages infecting birds of the family Corvidae.

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“…Infections by Haemoproteus ( Parahaemoproteus ), family Haemoproteidae, and/or Leucocytozoon parasites (family Leucocytozoidae) can be lethal for captive and free-living birds (Niedringhaus et al ., 2018; Galosi et al ., 2019; Groff et al ., 2019; Ortiz-Catedral et al ., 2019; Yoshimoto, 2021). Additionally, simultaneous infections (coinfections) by these parasites may exert greater selective pressure and virulence than single infections, subsequently reducing host survival probability (Halpern and Bennett, 1983; Pigeault et al ., 2018; Nardoni et al ., 2020; Nourani et al ., 2022; Pigeault et al ., 2022).…”

Section: Introductionmentioning

confidence: 99%

Leucocytozoon cariamae n. sp. and Haemoproteus pulcher coinfection in Cariama cristata (Aves: Cariamiformes): first mitochondrial genome analysis and morphological description of a leucocytozoid in Brazil

Vieira,

Pereira,

Vilela

et al. 2023

Parasitology

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The distribution of avian haemosporidians of the genus Leucocytozoon in the Neotropics remains poorly understood. Recent studies confirmed their presence in the region using molecular techniques alone, but evidence for gametocytes and data on putative competent hosts for Leucocytozoon are still lacking outside highland areas. We combined morphological and molecular data to characterize a new Leucocytozoon species infecting a non-migratory red-legged seriema (Cariama cristata), the first report of a competent host for Leucocytozoon in Brazil. Leucocytozoon cariamae n. sp. is distinguished from the Leucocytozoon fringillinarum group by its microgametocytes that are not strongly appressed to the host cell nucleus. The bird studied was coinfected with Haemoproteus pulcher, and we present a Bayesian phylogenetic analysis based on nearly complete mitochondrial genomes of these 2 parasites. Leucocytozoon cariamae n. sp. morphology is consistent with our phylogenetic analysis indicating that it does not share a recent common ancestor with the L. fringillinarum group. Haemoproteus pulcher and Haemoproteus catharti form a monophyletic group with Haemocystidium parasites of Reptilia, supporting the polyphyly of the genus Haemoproteus. We also discussed the hypothesis that H. pulcher and H. catharti may be avian Haemocystidium, highlighting the need to study non-passerine parasites to untangle the systematics of Haemosporida.

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Determinants of haemosporidian single- and co-infection risks in western palearctic birds

Cited by 7 publications

References 80 publications

Insights into the Biology of Leucocytozoon Species (Haemosporida, Leucocytozoidae): Why Is There Slow Research Progress on Agents of Leucocytozoonosis?

Insights into the Biology of Leucocytozoon Species (Haemosporida, Leucocytozoidae): Why Is There Slow Research Progress on Agents of Leucocytozoonosis?

High prevalence of haemosporidian parasites in Eurasian Jays

Leucocytozoon cariamae n. sp. and Haemoproteus pulcher coinfection in Cariama cristata (Aves: Cariamiformes): first mitochondrial genome analysis and morphological description of a leucocytozoid in Brazil

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