+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Does a facultative precocious life cycle predispose the marine trematode Proctoeces cf. lintoni to inbreeding and genetic differentiation among host species?



Does a facultative precocious life cycle predispose the marine trematode Proctoeces cf. lintoni to inbreeding and genetic differentiation among host species?



International Journal for Parasitology 44(3-4): 183-188



Intraspecific variability in parasite life cycle complexity (number of hosts and species of hosts in the life cycle) may have an impact how parasite genetic variation is partitioned among individual parasites, host individuals or host species within a given area. Among digenean trematodes, a three-host life cycle is common. However, a few species are precocious and may reach sexual maturity in what is typically regarded as the second intermediate host. The objective of this study was to determine whether a precocious life cycle predisposes digeneans to possible inbreeding or genetic subdivision among host species. As a study system, we used the digenean Proctoeces cf. lintoni whose metacercariae precociously mature (facultative) without a cyst wall in the gonads of multiple sympatric species of keyhole limpets (Fissurella spp.), typically regarded as the second intermediate hosts. Genotyped parasites were collected from four species of limpets and the clingfish Sicyases sanguineus, the third and final host where sexual maturity occurs. We found very high microsatellite diversity, Hardy-Weinberg equilibrium over all genotyped individuals, and little to no genetic structuring among parasites collected from the different host species. The fact that metacercariae do not encyst in the keyhole limpets, coupled with the high mixing potential of an aquatic environment, likely promote panmixia in local populations of P. cf. lintoni.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 052686151

Download citation: RISBibTeXText

PMID: 24447491

DOI: 10.1016/j.ijpara.2013.10.008


Related references

Differential Precocious Sexual Development of Proctoeces lintoni (Digenea: Fellodistomidae) in Three Sympatric Species of Keyhole Limpets Fissurella spp. May Affect Transmission to the Final Host. The Journal of Parasitology 87(5): 1164-1167, 2001

Differential precocious sexual development of Proctoeces lintoni (Digenea: Fellodistomidae) in three sympatric species of keyhole limpets Fissurella spp. may affect transmission to the final host. Journal of Parasitology 87(5): 1164-1167, 2001

First intermediate host of the digenean trematode Proctoeces lintoni (Fellodistomidae) in Chile. Journal of Parasitology 95(6): 1408-1414, 2010

Molecular and experimental evidence refuse the life cycle of Proctoeces lintoni in Chile. Parasitology Research6: 3, 737-740, 2010

Molecular and experimental evidence refuse the life cycle of Proctoeces lintoni (Fellodistomidae) in Chile. Parasitology Research 106(3): 737-740, 2010

Effect of an adult trematode, Proctoeces lintoni , on the gonadosomatic index of Fissurella limbata. Acta Parasitologica 38(4): 155-156, 1993

Life cycle of proctoeces orientalis new species in marine bivalves. Acta Zoologica Sinica 35(1): 58-65, 1989

The life-cycle of the digenetic trematode, Proctoeces maculatus Odhner, 1911. Biol Bull 116(1): 184-193, 1959

Life cycle and host specificity of the marine digenetic trematode genitocotyle acirra. Journal of Parasitology 56(4 SEC II PT 1): 273-274, 1970

Is a vertebrate a better host for a parasite than an invertebrate host? Fecundity of Proctoeces cf lintoni (Digenea: Fellodistomidae), a parasite of fish and gastropods in northern Chile. Parasitology Research 109(6): 1731-1734, 2012

The life cycle of the digenetic trematode Proctoeces maculatus (Looss, 1901) Odhner,1911 and description of Cercaria adrenocerca n. sp. Biological Bulletin Wood's Hole, 116: 184-193, 1959

Studies on a trematode genus Proctoeces parasitic in pearl oyster, Pinctada fucata-3. On the adult trematode, Proctoeces ostreae Fujita in Dollfus, 1925, found in the black porgy, Mylio macrocephalus, from Tanabe Bay. Bulletin natn Pearl Res Lab, 16: 2028-2037, 1972

The Life-Cycle of the Digenetic trematode, Proctoeces maculatus (Looss, 1901) Odhner, 1911 [Syn. P. subtenuis (Linton, 1907) Hanson, 1950], and Description of Cercaria adranocerca n. sp. Biological Bulletin 116(1): 184-193, 1959

Progenesis and facultative life cycle abbreviation in trematode parasites: Are there more constraints than costs?. International Journal for Parasitology 2019, 2019

The key-hole limpets Fissurella spp Mollusca Archaeogastropoda and the clingfish Sicyases sanguineus Pisces Gobiesocidae are sequential hosts of Proctoeces lintoni Digenea Fellodistomidae in Chile Las lapas Fissurella spp Mollusca Archaeogastropoda y el pejesapo Sicyases sanguineus Pisces Gobiesocidae son huespedes secuenciales de Proctoeces lintoni Digenea Fellodistomidae en Chile. Revista Chilena de Historia Natural. Junio; 712: 169-176, 1998