Parasite mediated homogenizing selection at the MHC in guppies
نویسندگان
چکیده
منابع مشابه
The experimental evolution of parasite resistance in wild guppies: artificial selection, resource availability and predation pressure.
In a recent paper, ‘Experimental elimination of parasites in nature leads to the evolution of increased resistance in hosts’, Dargent et al. [1] reported on a transplant experiment using wild guppies, Poecilia reticulata. Fish were collected from a source population in a downstream, high productivity site where they experienced parasitism and predation. They were held in the laboratory and chem...
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Natural (parasite-driven) and sexual selection are thought to maintain high polymorphism in the genes of the major histocompatibility complex (MHC), but support for a link between mate choice, MHC variation and increased parasite resistance is circumstantial. We compared MHC diversity and Anisakis loads among anadromous Atlantic salmon (Salmo salar L.) returning to four rivers to spawn, which h...
متن کاملExperimental evolution of parasite resistance in wild guppies: natural and multifarious selection.
References http://rspb.royalsocietypublishing.org/content/281/1794/20141820.full.html#ref-list-1 This article cites 8 articles, 1 of which can be accessed free Subject collections (295 articles) environmental science (1773 articles) ecology Articles on similar topics can be found in the following collections Email alerting service here right-hand corner of the article or click Receive fre...
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Research into visual and acoustic signals has demonstrated that exaggerated sexual displays often provide an honest indicator of a male's resistance to parasites. Recent studies with rodents and humans now suggest that chemosensory signals also reveal a male's disease resistance and his genetic compatibility. Our understanding of sexual selection has been greatly enriched by considering the mec...
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انتخاب نامساعد یکی از مشکلات اساسی در صنعت بیمه است. که ابتدا در سال 1960، توسط روتشیلد واستیگلیتز مورد بحث ومطالعه قرار گرفت ازآن موقع تاکنون بسیاری از پژوهشگران مدل های مختلفی را برای تجزیه و تحلیل تقاضا برای صنعت بیمه عمر که تماما ناشی از عدم قطعیت در این صنعت میباشد انجام داده اند .وهدف از آن پیدا کردن شرایطی است که تحت آن شرایط انتخاب یا کنار گذاشتن یک بیمه گزار به نفع و یا زیان شرکت بیمه ...
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ژورنال
عنوان ژورنال: Genetica
سال: 2009
ISSN: 0016-6707,1573-6857
DOI: 10.1007/s10709-009-9402-y