Phylogenetic analysis of the genus Hepatozoon Miller, 1908 (Apicomplexa: Adeleorina)

Smith, T.; Desser, Sherwin S.

doi:10.1023/a:1005721501485

Cited by 34 publications

(17 citation statements)

References 42 publications

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“…Morphological characteristics of gametocytes have been rejected by many authors (Smith & Desser, 1997;Jakes et al, 2003) as valid criteria for differentiating genera of haemogregarines because: (i) gametocytes of two or more species may be present in the same vertebrate host (Smith, 1996); (ii) mature and immature gametocytes of the same species might be considered as different species (Jakes et al, 2003); and (iii) there may be confusion between macro-and microgametocytes, which could also be considered as different species (Smith, 1996;Paperna & Lainson, 2004). Thus, other traits, such as developmental stages found in vertebrate hosts, invertebrate hosts involved in the life-cycle, and the biogeography and ecology of the vertebrate hosts, have been used to differentiate genera of these blood parasites.…”

Section: Discussionmentioning

confidence: 99%

Haemogregarine blood parasites in the lizards Podarcis bocagei (Seoane) and P. carbonelli (Pérez-Mellado) (Sauria: Lacertidae) from NW Portugal

Roca

Galdón

2009

Syst Parasitol

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In Iberian and Canarian lizards, haemogregarines have been recorded infecting erythrocytes, but most of the records correspond to mature gametocytes. We analysed blood smears from 75 specimens of Podarcis bocagei (Seoane) and 33 specimens of P. carbonelli (Pérez-Mellado) from localities of north-western Portugal. We found haemogregarines in 74.7% of P. bocagei and 69.7% of P. carbonelli. Our observations show characteristics of the haemogregarines other than the morphology of the mature gametocytes. In histological sections of the liver of four hosts latent cysts with sporozoites and meronts with merozoites were detected. Both traits have been described as typical of the genera Hepatozoon Miller, 1908 and Hemolivia Petit, Landau, Baccam & Lainson, 1990. We suggest that not only P. bocagei and P. carbonelli from Portugal but other species of Iberian and Canarian lacertids might also be infected by species belonging to one or both genera.

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Section: Discussionmentioning

confidence: 99%

Haemogregarine blood parasites in the lizards Podarcis bocagei (Seoane) and P. carbonelli (Pérez-Mellado) (Sauria: Lacertidae) from NW Portugal

Roca

Galdón

2009

Syst Parasitol

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confidence: 99%

“…Although limited molecular phylogenetic analyses of the Adeleorina have been attempted, morphological features, cytopathologic changes to infected host cells, and host associations have been the mainstay of their taxonomic classification (Boulianne et al 2007;Siddall 1995;Smith 1996;Smith and Desser 1997;Smith et al 2000;Vilcins et al 2009). Classification based on biology and morphology of these parasites is fraught with homoplasy and differences in opinion with regard to the weight to give individual characters.…”

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confidence: 99%

Phylogenetic Position of the Adeleorinid Coccidia (Myzozoa, Apicomplexa, Coccidia, Eucoccidiorida, Adeleorina) Inferred Using 18S rDNA Sequences

Barta

Ogedengbe²,

Martin³

et al. 2012

J Eukaryotic Microbiology

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112

113

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Investigating the evolutionary relationships of the major groups of Apicomplexa remains an important area of study. Morphological features and host-parasite relationships continue to be important in the systematics of the adeleorinid coccidia (suborder Adeleorina), but the systematics of these parasites have not been well-supported or have been constrained by data that were lacking or difficult to interpret. Previous phylogenetic studies of the Adeleorina have been based on morphological and developmental characters of several well-described species or based on nuclear 18S ribosomal DNA (rDNA) sequences from taxa of limited taxonomic diversity. Twelve new 18S rDNA sequences from adeleorinid coccidia were combined with published sequences to study the molecular phylogeny of taxa within the Adeleorina and to investigate the evolutionary relationships of adeleorinid parasites within the Apicomplexa. Three phylogenetic methods supported strongly that the suborder Adeleorina formed a monophyletic clade within the Apicomplexa. Most widely recognized families within the Adeleorina were hypothesized to be monophyletic in all analyses, although the single Hemolivia species included in the analyses was the sister taxon to a Hepatozoon sp. within a larger clade that contained all other Hepatozoon spp. making the family Hepatozoidae paraphyletic. There was an apparent relationship between the various clades generated by the analyses and the definitive (invertebrate) host parasitized and, to lesser extent, the type of intermediate (vertebrate) host exploited by the adeleorinid parasites. We conclude that additional taxon sampling and use of other genetic markers apart from 18S rDNA will be required to better resolve relationships among these parasites.

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“…The primers used in this assessment allowed the detection of multiple and phylogenetically diverse lineages of the Apicomplexa. Haemogregarines are composed of the genera Haemogregarina Danilewsky, 1885, Desseria Siddall, 1995and Cyrilia Lainson, 1981, Hepatozoon (Hepatozoidae), Hemolivia Petit, Landau, Baccam et Lainson, 1990and Karyolysus Labbé, 1894(Karyolysidae), and Dactylosoma Labbé, 1894and Babesiosoma Jakowska et Nigrelli, 1956 (see Smith andDesser 1997, Telford 2009). Parasites of the genus Haemogregarina are known to use chelonians as the vertebrate host.…”

Section: Discussionmentioning

confidence: 99%

Diversity of haemoprotozoan parasites infecting the wildlife of South Africa

Harris

Halajian

Santos³

et al. 2018

FOLIA PARASIT

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Tissue samples from wildlife from South Africa were opportunistically collected and screened for haemoprotozoan parasites using nonspecific PCR primers. Samples of 127 individuals were tested, comprising over 50 different species. Haemogregarines were the most commonly identified parasites, but sarcocystids and piroplasmids were also detected. Phylogenetic analyses estimated from the 18S rDNA marker highlighted the occurrence of several novel parasite forms and the detection of parasites in novel hosts. Phylogenetic relationships, which have been recently reviewed, appear to be much more complex than previously considered. Our study highlights the high diversity of parasites circulating in wildlife in this biodiverse region, and the need for further studies to resolve taxonomic issues.

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Phylogenetic analysis of the genus Hepatozoon Miller, 1908 (Apicomplexa: Adeleorina)

Cited by 34 publications

References 42 publications

Haemogregarine blood parasites in the lizards Podarcis bocagei (Seoane) and P. carbonelli (Pérez-Mellado) (Sauria: Lacertidae) from NW Portugal

Haemogregarine blood parasites in the lizards Podarcis bocagei (Seoane) and P. carbonelli (Pérez-Mellado) (Sauria: Lacertidae) from NW Portugal

Phylogenetic Position of the Adeleorinid Coccidia (Myzozoa, Apicomplexa, Coccidia, Eucoccidiorida, Adeleorina) Inferred Using 18S rDNA Sequences

Diversity of haemoprotozoan parasites infecting the wildlife of South Africa

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