Host-induced Variation in Plagiorchis noblei Park, 1936 (Plagiorchiidae: Trematoda)

Blankespoor, Harvey D.

doi:10.2307/2424306

Cited by 33 publications

(27 citation statements)

References 10 publications

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“…Plagiorchis species (Fahmy, 1954;Tkach et al, 2000a) however as pointed out by Blankespoor (1974) and Gorman (1980) use of the glands for diagnosis may not be appropriate due to the intraspecific variation observed in this feature. For instance the vitelline glands of P. muris have been reported to extend to either the posterior border of the pharynx (Tanabe, 1922;Hong et al, 1996) or the level of the oral sucker (Fahmy and Rayski, 1963;Seo et al, 1964;Hong et al, 1998).…”

Section: Confluency Of the Vitelline Glands Have Been Used On Severalmentioning

confidence: 99%

A molecular and ecological analysis of the trematodePlagiorchis elegansin the wood mouseApodemus sylvaticusfrom a periaquatic ecosystem in the UK

et al. 2013

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The prevalence of the digenean Plagiorchis sp. was investigated in a natural wood mouse population (Apodemus sylvaticus) in a periaquatic environment. Classical identification was complemented with the use of molecular differentiation to determine prevalence and verify species identity. Use of the complete ITS1-5.8S rDNA-ITS2 and partial 28S rDNA gene sequences have confirmed that the species reported at this location was Plagiorchis elegans and not Plagiorchis muris as reported previously. This underlines the difficulties in identification of these morphologically similar parasites. Plagiorchis elegans is typically a gastrointestinal parasite of avian species but has also been reported from small mammal populations. Although the occurrence of this digenean in A. sylvaticus in the UK is rare, in the area immediately surrounding Malham Tarn, Yorkshire, it had a high prevalence (23%) and a mean worm burden of 26.6 ± 61.5. The distribution of P. elegans followed a typically overdispersed pattern and both mouse age-group and sex were determined to be two main factors associated with prevalence. Male mice harboured the majority of worms, carrying 688 of 717 recovered during the study, and had a higher prevalence of 32.4% in comparison to only 8.7% in the small intestine of female mice. A higher prevalence of 43% was also observed in adult mice compared to 14% for young adults. No infection was observed in juvenile mice. These significant differences are likely to be due to differences in the foraging behaviour between the sexes and age cohorts of wood mice.

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Section: Confluency Of the Vitelline Glands Have Been Used On Severalmentioning

confidence: 99%

A molecular and ecological analysis of the trematodePlagiorchis elegansin the wood mouseApodemus sylvaticusfrom a periaquatic ecosystem in the UK

et al. 2013

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“…Studies on intraspecific variations and the subspecific concept have increasingly influenced trematode taxonomy (see e.g. Boddeke 1960;Macko & Busa 1960;Marker & Cheng 1960;Odening 1961;Wright 1962;Mettrick 1963;Feige 1966;Panitz 1966;Grabda-Kazubska 1967;Blankespoor 1974;Palmieri 1975;Kennedy 1980;Scott et al 1980), andBakke (1980) arranged the known reports of L. variae broodsacs into L. variae-American variae forms and L. variae-European perturhaturn forms, and suggested that a polytypic subspecies complex is maybe involved in the most isolated populations. Evolution below species level is characterized by continuity of variation and not by a succession of distinct types.…”

Section: Concluding Discussionmentioning

confidence: 99%

The Morphology and Taxonomy of Leucochloridium (L.) variae Mclntosh (Digenea, Leucochloridiidae) from the Nearctic as Revealed by Light and Scanning Electron Microscopy

BAKKE

1982

Zool Scripta

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Bakke, T. A. 1982. The morphology and taxonomy of Leucochloridium ( L . ) variae McIntosh (Digenea, Leucochloridiidae) from the Nearctic as revealed by light and scanning electron microscopy.-2001. Scr. 11: 87-100.The morphology of the sporocyst and metacercarial stages of Leucochloridium (Leucochloridium) variae from Succinea ovalis in Nebraska, U.S.A., as revealed by light microscopy is described, These results are compared with earlier Holarctic larval descriptions of the brown-banded broodsac complex. The adult morphology as revealed by light and electron microscopical studies on experimentally reared adults from Larus canus and Taeniopygia guttata is described and compared with earlier information on this and other species described within the same species complex. No significant differences were found within the Nearctic, or between the Nearctic and Palaearctic material, which imply that L. variae McIntosh (and sensu Lewis), L. pricei McIntosh, the "Rensselaerville-sporocyst" described by Ingram & Hewitt, L . fuscostriatum Robinson, L. perturbatum Pojmanska, L. subtilis Pojmanska, L . fuscum Rietschel, and Leucochloridium sp. described by Bakke, are considered conspecific, L . melospizae McIntosh sp. inquirenda. The tendencies for larval differences to be correlated with geographical subregions were judged to be no more than intraspecific variation within a brown-banded sporocyst complex. Different characteristics of both larval and adult stages are described in more detail and discussed.

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“…Experimental evidence that the host species influences the morphology of developing flukes has accumulated during the past 20 years (Berrie, 1960;Watertor, 1967;Kinsella, 1971;Blankespoor, 1974;Palmieri, 1975;Bakke, 1978a;Kennedy, 1980). If the host species were responsible for the morphological differences observed between the roundand lobed-testis forms, one would expect that parasites developing in mallards would have round testes and those developing in canvasbacks and redheads would have lobed testes, regardless of the source of the infective material.…”

Section: O N T R O L I N F E C T I O N S Cross I N F E C T I O N S mentioning

confidence: 99%

Experimental studies on the taxonomic relationships in the subfamily Typhlocoelinae (Digenea: Cyclocoelidae)

1981

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Host-induced Variation in Plagiorchis noblei Park, 1936 (Plagiorchiidae: Trematoda)

Cited by 33 publications

References 10 publications

A molecular and ecological analysis of the trematodePlagiorchis elegansin the wood mouseApodemus sylvaticusfrom a periaquatic ecosystem in the UK

A molecular and ecological analysis of the trematodePlagiorchis elegansin the wood mouseApodemus sylvaticusfrom a periaquatic ecosystem in the UK

The Morphology and Taxonomy of Leucochloridium (L.) variae Mclntosh (Digenea, Leucochloridiidae) from the Nearctic as Revealed by Light and Scanning Electron Microscopy

Experimental studies on the taxonomic relationships in the subfamily Typhlocoelinae (Digenea: Cyclocoelidae)

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