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A review of performance and pathogenicity of male and female Schistosoma mansoni during the life-cycle

  • J. BOISSIER (a1), S. MORAND (a1) and H. MONÉ (a1)

Abstract

The sexual life-history traits of Schistosoma mansoni have been reviewed to compare male and female performance and pathogenicity against Biomphalaria glabrata during the life-cycle. A meta-analysis was used on pooled results from different experiments. In most cases, there was no difference between males and females but male cercariae were significantly more infectious than female cercariae. Conversely, cercarial production and cercarial life-span were significantly greater for females than for males; furthermore, females have a tendency to occur in molluscs of larger size. Each difference is discussed and interpreted when possible in terms of male and female differences in transmission strategies. The female strategy may consist of producing many long-living larvae. The male strategy may consist of producing few short-living larvae and would invest in the quality of these larvae instead of their quantity or their life-span.

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Corresponding author. Tel: +33 (0)4 68 66 20 50. Fax: +33 (0)4 68-66 22 81. E-mail: boissier@univ-perp.fr

Keywords

A review of performance and pathogenicity of male and female Schistosoma mansoni during the life-cycle

  • J. BOISSIER (a1), S. MORAND (a1) and H. MONÉ (a1)

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