Effects of intermediate host genetic background on parasite transmission dynamics:: A case study using Schistosoma mansoni

被引：24
作者：
Zavodna, Monika [1 ]
Sandland, Gregory J. [1 ]
Minchella, Dennis J. [1 ]
机构：
[1] Purdue Univ, Dept Biol Sci, W Lafayette, IN 47907 USA
来源：
EXPERIMENTAL PARASITOLOGY | 2008年 / 120卷 / 01期
基金：
美国国家卫生研究院;
关键词：
Biomphalaria glabrata; complex-life cycle parasite; host-parasite interaction; local adaptation; microsatellites; parasite sex; Schistosoma mansoni; sex-ratio distortion; trematode;
D O I：
10.1016/j.exppara.2008.04.021
中图分类号：
R38 [医学寄生虫学]; Q [生物科学];
学科分类号：
07 ; 0710 ; 09 ; 100103 ;
摘要：
For parasites that require multiple hosts to complete their development, genetic interplay with one host may impact parasite transmission and establishment in subsequent hosts. In this study, we used microsatellite loci to address whether the genetic background of snail intermediate hosts influences life-history traits and transmission patterns of dioecious trematode parasites in their definitive hosts. We performed experimental Schistosoma mansoni infections utilizing two allopatric populations of Biomphalaria glabrata snails and assessed intensities and sex ratios of adult parasites in mouse definitive hosts. Our results suggest that the genetic background of hosts at one point in a parasite's life cycle can influence the intensities and sex ratios of worms in subsequent hosts. (C) 2008 Elsevier Inc. All rights reserved.
引用
收藏
页码：57 / 61
页数：5
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