Quantitative mapping of a digenic behavioral trait implicates globin variation in C. elegans sensory behaviors.

Quantitative mapping of a digenic behavioral trait implicates globin variation in C. elegans sensory behaviors.
复制标题

DOI:
10.1016/j.neuron.2009.02.012
复制
发表时间:
2009-03-12
期刊:
影响因子:
16.2
通讯作者:
Bargmann, Cornelia I.
Bargmann, Cornelia I.
中科院分区:
医学1区
文献类型:
--
作者:
McGrath, Patrick T.;Rockman, Matthew V.;Zimmer, Manuel;Jang, Heeun;Macosko, Evan Z.;Kruglyak, Leonid;Bargmann, Cornelia I.

文献摘要

参考文献

被引文献

相似文献

大多数可遗传的行为性状都有复杂的遗传基础,但很少有多基因性状在分子水平上被理解。在这里,我们发现线虫菌株N2和CB4856对环境O2和CO2的同时变化具有相反的行为反应。我们确定了影响这一性状的两个数量性状基因座(QTL),并将每个QTL定位到一个单基因多态。一个名为NPR-1的基因编码了之前描述的神经肽受体,该受体在氮气中的高活性促进了二氧化碳的避免。第二个基因GLB-5编码神经元球蛋白结构域蛋白,其在CB4856中的高活性改变了对O2和O2/CO2组合刺激的行为反应。GLB-5作用于氧敏感神经元,增加氧引起的钙信号,暗示珠蛋白参与感觉信号。对野生线虫的分析表明,NPR-1和GLB-5的N2等位基因是最近在同一菌株背景下出现的,可能是对实验室条件的适应。
Most heritable behavioral traits have a complex genetic basis, but few multigenic traits are understood at a molecular level. Here we show that the C. elegans strains N2 and CB4856 have opposite behavioral responses to simultaneous changes in environmental O2 and CO2. We identify two quantitative trait loci (QTL) that affect this trait, and map each QTL to a single-gene polymorphism. One gene, npr-1, encodes a previously described neuropeptide receptor whose high activity in N2 promotes CO2 avoidance. The second gene, glb-5, encodes a neuronal globin domain protein whose high activity in CB4856 modifies behavioral responses to O2 and combined O2/CO2 stimuli. glb-5 acts in O2–sensing neurons to increase O2-evoked calcium signals, implicating globins in sensory signaling. An analysis of wild C. elegans strains indicates that the N2 alleles of npr-1 and glb-5 arose recently in the same strain background, possibly as an adaptation to laboratory conditions.
DOI: 10.1371/journal.pbio.0040274
发表时间: 2006-09
期刊: PLoS biology
影响因子: 9.8
作者:
Chang AJ;Chronis N;Karow DS;Marletta MA;Bargmann CI
通讯作者: Bargmann CI
DOI: 10.1126/science.1166527
发表时间: 2009-01-16
期刊: Science (New York, N.Y.)
影响因子: --
作者:
Reddy KC;Andersen EC;Kruglyak L;Kim DH
通讯作者: Kim DH
DOI: 10.1038/nature02697
发表时间: 2004-08-05
期刊: NATURE
影响因子: 64.8
作者:
Denver, DR;Morris, K;Thomas, WK
通讯作者: Thomas, WK
DOI: 10.1126/science.277.5327.834
发表时间: 1997-08-08
期刊: SCIENCE
影响因子: 56.9
作者:
Osborne, KA;Robichon, A;Sokolowski, MB
通讯作者: Sokolowski, MB
秀丽隐杆线虫珠蛋白家族成员的结构和表达谱存在广泛多样性。
DOI: 10.1186/1471-2164-8-356
发表时间: 2007-10-04
期刊: BMC GENOMICS
影响因子: 4.4
作者:
Hoogewijs, David;Geuens, Eva;Dewilde, Sylvia;Vierstraete, Andy;Moens, Luc;Vinogradov, Serge;Vanfleteren, Jacques R.
通讯作者: Vanfleteren, Jacques R.