Genetic variation for cardiac dysfunction in Drosophila.

Genetic variation for cardiac dysfunction in Drosophila.
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果蝇心脏功能障碍的遗传变异。

DOI:
10.1371/journal.pone.0000601
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发表时间:
2007-07-11
期刊:
影响因子:
3.7
通讯作者:
Bodmer, Rolf
Bodmer, Rolf
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Ocorr, Karen A.;Crawley, Timothy;Gibson, Greg;Bodmer, Rolf

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常见的疾病可能归因于变异等位基因的组合,但很少有模型系统,其中这些变异之间的相互作用可以在受控的遗传杂交中进行研究。虽然关联研究的目的是检测常见的多态性的中度影响,需要新的方法来表征罕见的等位基因之间的相互作用对疾病的影响。我们发现野生黑腹果蝇种群具有罕见的主效应(RAME)多态性,这种多态性使果蝇易患一种特定的疾病表型,即年龄依赖性心功能不全。50个近交野生型品系的筛选揭示了起搏诱导的心力衰竭的连续谱,其频率通常随年龄增加而增加。对诱导性心力衰竭发生率高的近交系进行高速视频分析表明心脏功能存在特定缺陷,包括心律失常和收缩性疾病(“心肌病”)。一个组合的散装分离分析和单特征多态性(SFP)检测本地化的心脏易感基因座之一的97 C间隔的苍蝇基因组。野生型果蝇,像人类一样,易患心脏功能障碍。与这些自然发生的心脏性状相关的因素的鉴定有望为心脏病的流行病学提供重要的见解。
Common diseases may be attributed to combinations of variant alleles, but there are few model systems where the interactions among such variants can be studied in controlled genetic crosses. While association studies are designed to detect common polymorphisms of moderate effect, new approaches are required to characterize the impact on disease of interactions among rare alleles. We show that wild populations of Drosophila melanogaster harbor rare polymorphisms of major effect (RAME) that predispose flies to a specific disease phenotype, age-dependent cardiac dysfunction. A screen of fifty inbred wild-type lines revealed a continuous spectrum of pacing-induced heart failure that generally increases in frequency with age. High-speed video analysis of the inbred lines with high rates of inducible heart failure indicates specific defects in cardiac function, including arrhythmias and contractile disorders (‘cardiomyopathies’). A combination of bulked segregant analysis and single feature polymorphism (SFP) detection localizes one of the cardiac susceptibility loci to the 97C interval on the fly genome. Wild-type Drosophila, like humans, are predisposed to cardiac dysfunction. Identification of factors associated with these naturally occurring cardiac traits promises to provide important insights into the epidemiology of cardiac disease.
DOI: 10.1073/pnas.0603098103
发表时间: 2006-08-08
影响因子: 11.1
作者:
Akasaka, Takeshi;Klinedinst, Susan;Bodmer, Rolf
通讯作者: Bodmer, Rolf
DOI: 10.1073/pnas.0609278104
发表时间: 2007-03-06
影响因子: 11.1
作者:
Ocorr, Karen;Reeves, Nick L.;Bodmer, Rolf
通讯作者: Bodmer, Rolf
DOI: 10.1534/genetics.104.026252
发表时间: 2004-07-01
期刊: GENETICS
影响因子: 3.3
作者:
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通讯作者: Gibson, G
DOI: 10.2144/04371st01
发表时间: 2004-07-01
期刊: BIOTECHNIQUES
影响因子: 2.7
作者:
Wessel, RJ;Bodmer, R
通讯作者: Bodmer, R
DOI: 10.3109/01677069509083461
发表时间: 1995-01-01
影响因子: 1.9
作者:
Dowse, H;Ringo, J;White, L
通讯作者: White, L