Delineation of the Genera Haemoproteus and Plasmodium Using RNA-Seq and Multi-gene Phylogenetics
(2018) In Journal of Molecular Evolution 86(9). p.646-654- Abstract
Members of the order Haemosporida are protist parasites that infect mammals, reptiles and birds. This group includes the causal agents of malaria, Plasmodium parasites, the genera Leucocytozoon and Fallisia, as well as the species rich genus Haemoproteus with its two subgenera Haemoproteus and Parahaemoproteus. Some species of Haemoproteus cause severe disease in avian hosts, and these parasites display high levels of diversity worldwide. This diversity emphasizes the need for accurate evolutionary information. Most molecular studies of wildlife haemosporidians use a bar coding approach by sequencing a fragment of the mitochondrial cytochrome b gene. This method is efficient at differentiating parasite lineages but insufficient for... (More)
Members of the order Haemosporida are protist parasites that infect mammals, reptiles and birds. This group includes the causal agents of malaria, Plasmodium parasites, the genera Leucocytozoon and Fallisia, as well as the species rich genus Haemoproteus with its two subgenera Haemoproteus and Parahaemoproteus. Some species of Haemoproteus cause severe disease in avian hosts, and these parasites display high levels of diversity worldwide. This diversity emphasizes the need for accurate evolutionary information. Most molecular studies of wildlife haemosporidians use a bar coding approach by sequencing a fragment of the mitochondrial cytochrome b gene. This method is efficient at differentiating parasite lineages but insufficient for accurate phylogenetic inferences in highly diverse taxa such as haemosporidians. Recent studies have utilized multiple mitochondrial genes (cyt b, cox1 and cox3), sometimes combined with a few apicoplast and nuclear genes. These studies have been highly successful with one notable exception: the evolutionary relationships of the genus Haemoproteus remain unresolved. Here we describe the transcriptome of Haemoproteus columbae and investigate its phylogenetic position recovered from a multi-gene dataset (600 genes). This genomic approach restricts the taxon sampling to 18 species of apicomplexan parasites. We employed Bayesian inference and maximum likelihood methods of phylogenetic analyses and found H. columbae and a representative from the subgenus Parahaemoproteus to be sister taxa. This result strengthens the hypothesis of genus Haemoproteus being monophyletic; however, resolving this question will require sequences of orthologs from, in particular, representatives of Leucocytozoon species.
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- author
- Toscani Field, Jasper ; Weinberg, Josh ; Bensch, Staffan LU ; Matta, Nubia E. ; Valkiūnas, Gediminas and Sehgal, Ravinder N.M. LU
- organization
- publishing date
- 2018-11-13
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Avian parasitology, Haemoproteus, Phylogenetics, Transcriptome
- in
- Journal of Molecular Evolution
- volume
- 86
- issue
- 9
- pages
- 646 - 654
- publisher
- Springer
- external identifiers
-
- pmid:30426144
- scopus:85056616617
- ISSN
- 0022-2844
- DOI
- 10.1007/s00239-018-9875-3
- language
- English
- LU publication?
- yes
- id
- 1f7eea66-8994-4361-a13d-229d39547edd
- date added to LUP
- 2018-11-28 13:51:17
- date last changed
- 2024-04-15 17:42:47
@article{1f7eea66-8994-4361-a13d-229d39547edd,
abstract = {{<p>Members of the order Haemosporida are protist parasites that infect mammals, reptiles and birds. This group includes the causal agents of malaria, Plasmodium parasites, the genera Leucocytozoon and Fallisia, as well as the species rich genus Haemoproteus with its two subgenera Haemoproteus and Parahaemoproteus. Some species of Haemoproteus cause severe disease in avian hosts, and these parasites display high levels of diversity worldwide. This diversity emphasizes the need for accurate evolutionary information. Most molecular studies of wildlife haemosporidians use a bar coding approach by sequencing a fragment of the mitochondrial cytochrome b gene. This method is efficient at differentiating parasite lineages but insufficient for accurate phylogenetic inferences in highly diverse taxa such as haemosporidians. Recent studies have utilized multiple mitochondrial genes (cyt b, cox1 and cox3), sometimes combined with a few apicoplast and nuclear genes. These studies have been highly successful with one notable exception: the evolutionary relationships of the genus Haemoproteus remain unresolved. Here we describe the transcriptome of Haemoproteus columbae and investigate its phylogenetic position recovered from a multi-gene dataset (600 genes). This genomic approach restricts the taxon sampling to 18 species of apicomplexan parasites. We employed Bayesian inference and maximum likelihood methods of phylogenetic analyses and found H. columbae and a representative from the subgenus Parahaemoproteus to be sister taxa. This result strengthens the hypothesis of genus Haemoproteus being monophyletic; however, resolving this question will require sequences of orthologs from, in particular, representatives of Leucocytozoon species.</p>}},
author = {{Toscani Field, Jasper and Weinberg, Josh and Bensch, Staffan and Matta, Nubia E. and Valkiūnas, Gediminas and Sehgal, Ravinder N.M.}},
issn = {{0022-2844}},
keywords = {{Avian parasitology; Haemoproteus; Phylogenetics; Transcriptome}},
language = {{eng}},
month = {{11}},
number = {{9}},
pages = {{646--654}},
publisher = {{Springer}},
series = {{Journal of Molecular Evolution}},
title = {{Delineation of the Genera Haemoproteus and Plasmodium Using RNA-Seq and Multi-gene Phylogenetics}},
url = {{http://dx.doi.org/10.1007/s00239-018-9875-3}},
doi = {{10.1007/s00239-018-9875-3}},
volume = {{86}},
year = {{2018}},
}