Kunz AK and Pung OJ: Effects of Microphallus
Infected samples were comprised of adult individuals that were infected with Microphallus (Microphallus-infected), or with any of the other trematode parasites (non-Microphallusinfected).
Tracking and overinfection of common clones by parasites should lead to high rates of clone-specific infection by both Microphallus and non-Microphallus parasites, and to clonal dynamics in the random sample.
These trematodes were assigned to the genera: Levinseniella (Levinseniella) Stiles & Hassal 1901, Maritrema Nicoll 1907, and Microphallus Ward 1901.
Cable and Hunninen (1940) described the first detailed accounts of an experimental life cycle for the genus Microphallus for M.
We compared the prevalence of infection by Microphallus sp.
The prevalence of Microphallus infection among triploid clones and diploid sexuals did not differ (pairwise t = -0.
Relations hotes-parasittes du trematode Microphallus
papillorobustus (Rankin 1940).
Live snails were transported to the laboratory, where we obtained two separate samples from each of the 20 sites: a sample of snails and a sample of Microphallus parasite tissue from infected snails.
Such inbreeding is possible in Microphallus because of the clonal production of larvae in the snail host; these clonemates are then ingested together by the final host and may be likely to encounter each other during mating.
The results showed that the frequency of infection by Microphallus has a highly significant association with the linear combination of the dependent variables, male frequency, and the mean size of brooding females (Wilks' [lambda] = 0.
Standardized regression coefficients from the univariate multiple regressions of male frequency and mean size of brooding females against shell length and Microphallus prevalence.