Parasitic castration by the digenian trematode Allopodocotyle sp. alters gene expression in the brain of the host mollusc Haliotis asinina

Tamika Rice, Elizabeth McGraw, Elizabeth O'Brien, Antonio Reverter, Daniel Jackson, Bernard Degnan

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10 Citations (Scopus)


Infection of molluscs by digenean trematode parasites typically results in the repression of reproduction - the so-called parasitic castration. This is known to occur by altering the expression of a range of host neuropeptide genes. Here we analyse the expression levels of 10 members of POU, Pax, Sox and Hox transcription factor gene families, along with genes encoding FNIRFamide, prohormone convertase and P-tubulin, in the brain ganglia of actively reproducing (summer), non-reproducing (winter) and infected Haliotis asinina (a vetigastropod mollusc). A number of the regulatory genes are differentially expressed in parasitised H. asinina, but in only a few cases do expression patterns in infected animals match those occurring in animals where reproduction is normally repressed.
Original languageEnglish
Pages (from-to)3769 - 3774
Number of pages6
JournalFEBS Letters
Issue number15
Publication statusPublished - 2006
Externally publishedYes

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