BOISSIER, J., Jiří JARKOVSKÝ, S. MORAND and H. MONE. A model to explain the origin of a parasite sex-specific population structure. Theoretical population biology. 2004, vol. 66, No 3, p. 269-276, 7 pp. ISSN 0040-5809.
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Basic information
Original name A model to explain the origin of a parasite sex-specific population structure.
Name in Czech A model to explain the origin of a parasite sex-specific population structure.
Authors BOISSIER, J. (250 France), Jiří JARKOVSKÝ (203 Czech Republic, guarantor), S. MORAND (250 France) and H. MONE (250 France).
Edition Theoretical population biology, 2004, 0040-5809.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10600 1.6 Biological sciences
Country of publisher United States of America
Confidentiality degree is not subject to a state or trade secret
Impact factor Impact factor: 2.481
Organization unit Faculty of Science
UT WoS 000224597600010
Keywords in English Schistosoma mansoni; Population structure; Sex ratio; Sex dispersal
Tags population structure, Schistosoma mansoni, Sex dispersal, Sex ratio
Changed by Changed by: RNDr. Jiří Jarkovský, Ph.D., učo 9787. Changed: 29/6/2008 15:54.
Abstract
A discrete time model was built to understand the origin of the sex-specific population structure of the human blood fluke, Schistosoma mansoni. We have estimated both male/female individual ratio and male/female genotype ratio of this parasite taking into account all the experimental published values on differential male and female life-history traits all along the life cycle. We considered in our model male and female life-history traits when both separated and together. The model showed that both male/ female individual ratio and male/female genotype ratio of S. mansoni adultsare biased toward males in each combination. Thisbias wasmore important in male/female genotype ratio than in the male/female individual ratio for the same initial valuesof cercarial development success. This model could explain the sex specific population structure of this parasite. Firstly, we showed that the male-biased individual ratio finds its origin in the vertebrate host. Secondly, we showed that the male-biased genotype ratio originates prior to any interrelationship between adult worms and could generate by itself a sex-specific genetic structure.
Abstract (in Czech)
A discrete time model was built to understand the origin of the sex-specific population structure of the human blood fluke, Schistosoma mansoni. We have estimated both male/female individual ratio and male/female genotype ratio of this parasite taking into account all the experimental published values on differential male and female life-history traits all along the life cycle. We considered in our model male and female life-history traits when both separated and together. The model showed that both male/ female individual ratio and male/female genotype ratio of S. mansoni adultsare biased toward males in each combination. Thisbias wasmore important in male/female genotype ratio than in the male/female individual ratio for the same initial valuesof cercarial development success. This model could explain the sex specific population structure of this parasite. Firstly, we showed that the male-biased individual ratio finds its origin in the vertebrate host. Secondly, we showed that the male-biased genotype ratio originates prior to any interrelationship between adult worms and could generate by itself a sex-specific genetic structure.
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