Winning fights induces hyperaggression via the action of the biogenic amine octopamine in crickets.
Winning fights induces hyperaggression via the action of the biogenic amine octopamine in crickets.
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DOI：
10.1371/journal.pone.0028891
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发表时间：
2011
期刊：
影响因子：
3.7
通讯作者：
Stevenson PA
中科院分区：
文献类型：
--
作者：
Rillich J;Stevenson PA
赢得一个竞争的相互作用对同种被称为提高侵略性，但基本的事件和机制知之甚少。我们量化的效果，经历连续胜利的侵略成年雄性蟋蟀（蟋蟀bimaculatus）分期淘汰赛，并研究其依赖生物胺胺与胺受体拮抗剂治疗。对于5分钟的战斗间隔，胜利者之间的战斗升级到更高的侵略水平，持续时间明显长于前一轮。这种赢家效应是短暂的，并且在20分钟的战斗间隔中不再明显，这表明它并不是从一开始就选择具有超攻击性的个体而产生的。赢家效应在没有体力消耗的情况下经历胜利的蟋蟀中也很明显，或者在经历胜利之前被打断的战斗中也很明显。最后，赢家效应被取消了预先治疗依匹斯汀，一种高度选择性的章鱼胺受体阻滞剂，但不是普萘洛尔，β-肾上腺素能受体拮抗剂，也不是育亨宾，昆虫酪胺受体阻滞剂，也不是氟奋乃静昆虫多巴胺受体阻滞剂。总之，我们对板球的研究表明，战斗的体力消耗，加上实际获胜经验的一些奖励方面，通过激活章鱼胺能系统，无脊椎动物相当于脊椎动物的肾上腺素能系统，导致攻击性动机的短暂增加。
Winning an agonistic interaction against a conspecific is known to heighten aggressiveness, but the underlying events and mechanism are poorly understood. We quantified the effect of experiencing successive wins on aggression in adult male crickets (Gryllus bimaculatus) by staging knockout tournaments and investigated its dependence on biogenic amines by treatment with amine receptor antagonists. For an inter-fight interval of 5 min, fights between winners escalated to higher levels of aggression and lasted significantly longer than the preceding round. This winner effect is transient, and no longer evident for an inter-fight interval of 20 min, indicating that it does not result from selecting individuals that were hyper-aggressive from the outset. A winner effect was also evident in crickets that experienced wins without physical exertion, or that engaged in fights that were interrupted before a win was experienced. Finally, the winner effect was abolished by prior treatment with epinastine, a highly selective octopamine receptor blocker, but not by propranolol, a ß-adrenergic receptor antagonist, nor by yohimbine, an insect tyramine receptor blocker nor by fluphenazine an insect dopamine-receptor blocker. Taken together our study in the cricket indicates that the physical exertion of fighting, together with some rewarding aspect of the actual winning experience, leads to a transient increase in aggressive motivation via activation of the octopaminergic system, the invertebrate equivalent to the adrenergic system of vertebrates.
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影响因子：
3.7
作者：
Bondar NP;Boyarskikh UA;Kovalenko IL;Filipenko ML;Kudryavtseva NN
通讯作者：
Kudryavtseva NN
影响因子：
2.5
作者：
CHASE, ID;BARTOLOMEO, C;DUGATKIN, LA
通讯作者：
DUGATKIN, LA
影响因子：
3.4
作者：
Couppis, Maria H.;Kennedy, Craig H.
通讯作者：
Kennedy, Craig H.
DOI：
10.1073/pnas.1001394107
发表时间：
2010-07-06
影响因子：
11.1
作者：
Fuxjager, Matthew J.;Forbes-Lorman, Robin M.;Marler, Catherine A.
通讯作者：
Marler, Catherine A.
影响因子：
8.2
作者：
Archer, J
通讯作者：
Archer, J