Metacercaria of Alloglossidium corti (Digenea: Macroderoididae) from 3 Species of Crayfish (Decapoda: Cambaridae) in Arkansas and Oklahoma, U.S.A

McAllister, Chris T.; Robison, Henry W.; Font, William F.

doi:10.1654/4482.1

Cited by 4 publications

(2 citation statements)

References 26 publications

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“…Indeed, sequence data have since verified that the encysted metacercariae from crayfish that were identified as A. corti in McAllister et al. () are in fact, A. progeneticum . Adult specimens from slender madtoms ( Noturus exilis ) reported in McAllister et al.…”

Section: Discussionmentioning

confidence: 88%

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Evolutionary consequence of a change in life cycle complexity: A link between precocious development and evolution toward female-biased sex allocation in a hermaphroditic parasite

et al. 2015

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The evolutionary consequences of changes in the complex life cycles of parasites are not limited to the traits that directly affect transmission. For instance, mating systems that are altered due to precocious sexual maturation in what is typically regarded as an intermediate host may impact opportunities for outcrossing. In turn, reproductive traits may evolve to optimize sex allocation. Here, we test the hypothesis that sex allocation evolved toward a more female-biased function in populations of the hermaphroditic digenean trematode Alloglossidium progeneticum that can precociously reproduce in their second hosts. In these precocious populations, parasites are forced to self-fertilize as they remain encysted in their second hosts. In contrast, parasites in obligate three-host populations have more opportunities to outcross in their third host. We found strong support that in populations with precocious development, allocation to male resources was greatly reduced. We also identified a potential phenotypically plastic response in a body size sex allocation relationship that may be driven by the competition for mates. These results emphasize how changes in life cycle patterns that alter mating systems can impact the evolution of reproductive traits in parasites.

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Section: Discussionmentioning

confidence: 88%

“…For example, reports of nongravid, encysted metacercariae in crayfish were assumed to be A. corti (McAllister et al. ) based on historical life cycle work (McCoy ). Indeed, sequence data have since verified that the encysted metacercariae from crayfish that were identified as A. corti in McAllister et al.…”

Section: Discussionmentioning

confidence: 99%

Evolutionary consequence of a change in life cycle complexity: A link between precocious development and evolution toward female-biased sex allocation in a hermaphroditic parasite

et al. 2015

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Prevalence of Haematoloechus pulcher metacercariae (Digenea: Plagiorchioidea) in the crayfish Cambarellus montezumae in Salazar Lagoon, Estado de México

Pérez-Chi¹,

Carrillo-Laguna²,

Aguilar-Figueroa³

et al. 2015

Revista Mexicana de Biodiversidad

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Revista Mexicana de Biodiversidad 86 (2015) 730-736 Ecology Prevalence of Haematoloechus pulcher metacercariae (Digenea: Plagiorchioidea) in the crayfish Cambarellus montezumae in Salazar Lagoon, Estado de México Prevalencia de metacercarias de Haematoloechus pulcher (Digenea: Plagiorchioidea) en el acocil Cambarellus montezumae en la laguna de Salazar, Estado de México Abstract Crayfish can be intermediate hosts of larval digeneans.Cambarellus montezumae is a crustacean endemic of the Mexican plateau and is part of the diet of the inhabitants of Lerma; nonetheless, this municipality lacks parasitological studies on the species of hosts. This work is an analysis of 13 samples collected monthly proceeding from the lakeshore. Two hundred and twenty one crayfish were examined externally and internally. The metacercariae number per crayfish and per anatomical unit was registered. The prevalence, intensity and abundance were recorded each month. Ninety four crayfish were parasitized by metacercariae encysted mainly in the gills. The highest prevalence was observed in March, May and June. In spite of the slight difference in abundance between females (2.6) and males (2.4), there was no significant difference (U-Mann-Whitney test). The highest parasite burden was 26, with an average of 6 metacercariae per crayfish. In addition, all specimens with a size larger than 14 mm presented metacercariae, the only larval stage detected. C. montezumae could be considered a second intermediate host of the digenean Haematoloechus pulcher in

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Trematode Parasites (Digenea) of the Slender MadtomNoturus exilisand Black River MadtomNoturus maydeni(Siluriformes: Ictaluridae) from Arkansas, U.S.A

McAllister

Font

Connior

et al. 2015

Comparative Parasitology

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Metacercaria of Alloglossidium corti (Digenea: Macroderoididae) from 3 Species of Crayfish (Decapoda: Cambaridae) in Arkansas and Oklahoma, U.S.A

Cited by 4 publications

References 26 publications

Evolutionary consequence of a change in life cycle complexity: A link between precocious development and evolution toward female-biased sex allocation in a hermaphroditic parasite

Evolutionary consequence of a change in life cycle complexity: A link between precocious development and evolution toward female-biased sex allocation in a hermaphroditic parasite

Prevalence of Haematoloechus pulcher metacercariae (Digenea: Plagiorchioidea) in the crayfish Cambarellus montezumae in Salazar Lagoon, Estado de México

Trematode Parasites (Digenea) of the Slender MadtomNoturus exilisand Black River MadtomNoturus maydeni(Siluriformes: Ictaluridae) from Arkansas, U.S.A

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