Male-biased sex ratio: why and what consequences for the genus Schistosoma?

摘要: Schistosomes are the cause of most significant helminth disease humans. Their unusual sexual biology is intriguing. Instead being hermaphroditic, as rule in other trematode species, they gonochoric. Furthermore, their mating system considered to be monogamous, a characteristic shared by only 1% living and sex ratio male-biased. In this paper we propose an explanation origin male-biased schistosomes highlight ecological evolutionary consequences bias. We argue that schistosome gonochorism, monogamy biased can integrated into single scheme.