Phylogenetic Analysis of the Metastrongyloidea (Nematoda: Strongylida) Inferred From Ribosomal Rna Gene Sequences

Carreno, Ramon A.; Nadler, Steven A.

doi:10.1645/ge-76r

Cited by 61 publications

(51 citation statements)

References 24 publications

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“…Rodpai et al. (2016) found complete congruence between two CO 1 clades and two 18S clades where the two 18S clades had prior reference sequences designating them as A. cantonensis (GenBank AY295804; Carreno & Nadler, 2003) or A. malaysiensis (GenBank EF514914; Fontanilla & Wade, 2008). To facilitate future studies, we provided Tables S5 and S6, which provide sample information linking 18S haplotypes and CO 1 haplotypes as well as the alignment of the unique 18S haplotypes of A. malaysiensis and A. cantonensis in fasta format.…”

Section: Discussionmentioning

confidence: 99%

“…Indeed, the use of DNA data only came about in the 2000s. For example, ribosomal DNA sequences were used to assess metastrongylid nematode relationships (Carreno & Nadler, 2003) or to help survey larvae from mollusk intermediate hosts (Fontanilla & Wade, 2008; Qvarnstrom, Sullivan, Bishop, Hollingsworth, & da Silva, 2007; Qvarnstrom et al., 2010), and ~360‐bp region of the cytochrome c oxidase 1 ( CO 1) gene was used to assess relationships to other species of Angiostrongylus (Eamsobhana et al., 2010). To date, molecular systematic/phylogeographic studies on A. cantonensis have mainly used two mitochondrial (mtDNA) markers, CO 1 and cytochrome b ( CYTB ), where the focus has largely been descriptive in terms of reporting local patterns of haplotype variants (Aghazadeh et al., 2015; Dalton, Fenton, Cleveland, Elsmo, & Yabsley, 2017; Dusitsittipon, Criscione, Morand, Komalamisra, & Thaenkham, 2017; Dusitsittipon, Thaenkham, Watthanakulpanich, Adisakwattana, & Komalamisra, 2015; Eamsobhana, Song, et al., 2017; Eamsobhana, Yong, et al., 2017; Lv et al., 2012; Monte et al., 2012; Moreira et al., 2013; Nakaya et al., 2013; Okano et al., 2014; Rodpai et al., 2016; Simoes et al., 2011; Tokiwa et al., 2012, 2013; Vitta et al., 2016; Yong, Eamsobhana, Song, Prasartvit, & Lim, 2015; Yong, Song, Eamsobhana, Goh, & Lim, 2015; Yong, Song, Eamsobhana, & Lim, 2016).…”

Section: Introductionmentioning

confidence: 99%

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Hurdles in the evolutionary epidemiology of Angiostrongylus cantonensis: Pseudogenes, incongruence between taxonomy and DNA sequence variants, and cryptic lineages

Dusitsittipon

Criscione

Morand

et al. 2018

Evolutionary Applications

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Angiostrongylus cantonensis, the rat lungworm, is a zoonotic pathogen that is one of the leading causes of eosinophilic meningitis worldwide. This parasite is regarded as an emerging pathogen with a global range expansion out of southeastern Asia post‐WWII. To date, molecular systematic/phylogeographic studies on A. cantonensis have mainly used two mitochondrial (mtDNA) markers, cytochrome c oxidase 1 (CO1) and cytochrome b (CYTB), where the focus has largely been descriptive in terms of reporting local patterns of haplotype variants. In order to look for more global evolutionary patterns, we herein provide a collective phylogenetic assessment using the six available whole mtDNA genome samples that have been tagged as A. cantonensis, A. malaysiensis, or A. mackerrasae along with all other GenBank CO1 and CYTB partial sequences that carry these species identifiers. The results reveal three important complications that researchers will need to be aware of, or will need to resolve, prior to conducting future molecular evolutionary studies on A. cantonensis. These three problems are (i) incongruence between taxonomic identifications and mtDNA variants (haplotypes or whole mtDNA genome samples), (ii) the presence of a CYTB mtDNA pseudogene, and (iii) the need to verify A. mackerrasae as a species along with other possible cryptic lineages, of which there is suggestive evidence (i.e., A. cantonensis could be a species complex). We provided a discussion of how these complications are hurdles to our understanding of the global epidemiology of angiostrongyliasis. We call for future studies to be more explicit in morphological traits used for identifications (e.g., provide measurements). Moreover, it will be necessary to repeat prior morphological and life‐history studies while simultaneously using sequence data in order to assess possible associations between critical epidemiological data (e.g., biogeography, virulence/pathology, host species use) and specific lineages.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Hurdles in the evolutionary epidemiology of Angiostrongylus cantonensis: Pseudogenes, incongruence between taxonomy and DNA sequence variants, and cryptic lineages

Dusitsittipon

Criscione

Morand

et al. 2018

Evolutionary Applications

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“…In contrast, the harbour porpoise (Phocoena phocoena) calving in the same habitat does not exhibit strong age-dependent lungworm infections (Lehnert et al 2005), although lungworm species of harbour porpoises and harbour seals are quite closely related (Carreno and Nadler 2003) and the lifecycles therefore may be similar (K. Lehnert et al unpublished data). The diVerences might be due to the longer lactation period of porpoises of about 8 months (Møhl-Hansen 1954).…”

Section: Discussionmentioning

confidence: 99%

Parasites in harbour seals (Phoca vitulina) from the German Wadden Sea between two Phocine Distemper Virus epidemics

2007

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Parasites were collected from 107 harbour seals (Phoca vitulina) found on the coasts of Schleswig-Holstein, Germany, between 1997 and 2000. The prevalence of the parasites and their associated pathology were investigated. Eight species of parasites, primarily nematodes, were identiWed from the examined organs: two anisakid nematodes (Pseudoterranova decipiens (sensu lato), Contracaecum osculatum (sensu lato)) from the stomach, Otostrongylus circumlitus (Crenosomatidae) and ParaWlaroides gymnurus (Filaroididae) from the respiratory tract, one Wlarioid nematode (Acanthocheilonema spirocauda) from the heart, two acanthocephalans, Corynosoma strumosum and C. semerme (Polymorphidae), from the intestine and an ectoparasite, Echinophthirius horridus (Anoplura, Insecta). Lungworm infection was the most prominent parasitological Wnding and secondary bacterial bronchopneumonia the most pathogenic lesion correlated with the parasites. Heavy nematode burdens in the respiratory tract were highly agerelated and more frequent in young seals. A positive correlation was observed between high levels of pulmonary infection and severity of bronchopneumonia. The prevalence of lungworms in this study was higher than in seals that died during the 1988/1989 Phocine Distemper Virus epidemic, and the prevalence of acanthocephalans and heartworms had decreased compared to Wndings from the Wrst die-oV.

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“…The F2 and R1 primers amplified a 1,111-base pair (bp) segment of the 18S gene (GenBank accession JQ730004) and BLAST searches revealed that the O. osleri 18S sequence from our study was 100% identical to the 18S sequence of O. osleri identified in a coyote from California (Carreno and Nadler, 2003; GenBank accession AY295812). The NC1/NC2 primer set amplified a 537-bp segment of rDNA genome that included part of the 5.8S gene, the ITS-2 region, and part of the 28S gene (GenBank accession JQ730005).…”

mentioning

confidence: 70%

Oslerus osleri (Metastrongyloidea; Filaroididae) in Gray Wolves (Canis lupus) from Banff National Park, Alberta, Canada

Verocai

Schock

Lejeune

et al. 2013

Journal of Wildlife Diseases

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Phylogenetic Analysis of the Metastrongyloidea (Nematoda: Strongylida) Inferred From Ribosomal Rna Gene Sequences

Cited by 61 publications

References 24 publications

Hurdles in the evolutionary epidemiology of Angiostrongylus cantonensis: Pseudogenes, incongruence between taxonomy and DNA sequence variants, and cryptic lineages

Hurdles in the evolutionary epidemiology of Angiostrongylus cantonensis: Pseudogenes, incongruence between taxonomy and DNA sequence variants, and cryptic lineages

Parasites in harbour seals (Phoca vitulina) from the German Wadden Sea between two Phocine Distemper Virus epidemics

Oslerus osleri (Metastrongyloidea; Filaroididae) in Gray Wolves (Canis lupus) from Banff National Park, Alberta, Canada

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