Endocrine regulation of predator-induced phenotypic plasticity.
Endocrine regulation of predator-induced phenotypic plasticity.
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DOI：
10.1007/s00442-014-3102-8
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发表时间：
2014-11
期刊：
影响因子：
2.7
通讯作者：
Beckerman, Andrew P.
中科院分区：
文献类型：
--
作者：
Dennis, Stuart R.;LeBlanc, Gerald A.;Beckerman, Andrew P.
关键词：
阐明表型可塑性的发育和遗传控制仍然是进化生态学的中心议程。在这里，我们研究了另一种生物诱导表型可塑性的生理调节，特别是捕食者诱导的表型可塑性在模式生态和进化生物Daphnia Pulex中的作用。我们的研究集中在使用分子工具来测试与激素滴度、受体及其在生命周期中的时机有关的发育控制的替代机制。首先，我们综合了捕食者诱导的防御和节肢动物体细胞生长和形态的生理调控的细节，得出了一个明确的预测，即形态防御由保幼激素调节，生活史可塑性由蜕皮激素和保幼激素调节。然后，我们展示了一个小的基因网络如何在节肢动物的两个主要发育控制途径之间区分表型表达：幼虫和蜕皮激素信号。然后，通过应用捕食风险的实验梯度，我们展示了剂量依赖的基因表达将捕食者诱导的可塑性与幼体激素途径联系起来。我们的数据支持三个结论：(1)幼虫信号通路调节捕食者诱导的表型可塑性；(2)激素滴度(配体)而不是受体调节捕食者诱导的发育可塑性；(3)进化有利于利用节肢动物发育中一条重要的、高度保守的内分泌途径来调节对另一种有机体(捕食者)环境变化(风险)线索的反应。
Elucidating the developmental and genetic control of phenotypic plasticity remains a central agenda in evolutionary ecology. Here, we investigate the physiological regulation of phenotypic plasticity induced by another organism, specifically predator-induced phenotypic plasticity in the model ecological and evolutionary organism Daphnia pulex. Our research centres on using molecular tools to test among alternative mechanisms of developmental control tied to hormone titres, receptors and their timing in the life cycle. First, we synthesize detail about predator-induced defenses and the physiological regulation of arthropod somatic growth and morphology, leading to a clear prediction that morphological defences are regulated by juvenile hormone and life-history plasticity by ecdysone and juvenile hormone. We then show how a small network of genes can differentiate phenotype expression between the two primary developmental control pathways in arthropods: juvenoid and ecdysteroid hormone signalling. Then, by applying an experimental gradient of predation risk, we show dose-dependent gene expression linking predator-induced plasticity to the juvenoid hormone pathway. Our data support three conclusions: (1) the juvenoid signalling pathway regulates predator-induced phenotypic plasticity; (2) the hormone titre (ligand), rather than receptor, regulates predator-induced developmental plasticity; (3) evolution has favoured the harnessing of a major, highly conserved endocrine pathway in arthropod development to regulate the response to cues about changing environments (risk) from another organism (predator).
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影响因子：
2.7
作者：
Hannas, Bethany R.;Wang, Ying H.;Baldwin, William S.;Li, Yangchun;Wallace, Andrew D.;LeBlanc, Gerald A.
通讯作者：
LeBlanc, Gerald A.
影响因子：
2.1
作者：
Hammill, E.;Rogers, A.;Beckerman, A. P.
通讯作者：
Beckerman, A. P.
DOI：
10.1098/rspb.2010.1989
发表时间：
2011-06-07
影响因子：
4.7
作者：
Dennis, S. R.;Carter, Mauricio J.;Beckerman, A. P.
通讯作者：
Beckerman, A. P.
DOI：
10.1126/science.1197761
发表时间：
2011-02-04
期刊：
Science (New York, N.Y.)
影响因子：
--
作者：
Colbourne JK;Pfrender ME;Gilbert D;Thomas WK;Tucker A;Oakley TH;Tokishita S;Aerts A;Arnold GJ;Basu MK;Bauer DJ;Cáceres CE;Carmel L;Casola C;Choi JH;Detter JC;Dong Q;Dusheyko S;Eads BD;Fröhlich T;Geiler-Samerotte KA;Gerlach D;Hatcher P;Jogdeo S;Krijgsveld J;Kriventseva EV;Kültz D;Laforsch C;Lindquist E;Lopez J;Manak JR;Muller J;Pangilinan J;Patwardhan RP;Pitluck S;Pritham EJ;Rechtsteiner A;Rho M;Rogozin IB;Sakarya O;Salamov A;Schaack S;Shapiro H;Shiga Y;Skalitzky C;Smith Z;Souvorov A;Sung W;Tang Z;Tsuchiya D;Tu H;Vos H;Wang M;Wolf YI;Yamagata H;Yamada T;Ye Y;Shaw JR;Andrews J;Crease TJ;Tang H;Lucas SM;Robertson HM;Bork P;Koonin EV;Zdobnov EM;Grigoriev IV;Lynch M;Boore JL
通讯作者：
Boore JL
影响因子：
2.9
作者：
Brakefield, PM;Kesbeke, F;Koch, PB
通讯作者：
Koch, PB