Behavioral syndromes and the evolution of correlated behavior in zebrafish
Behavioral syndromes and the evolution of correlated behavior in zebrafish
复制标题
DOI：
10.1093/beheco/arm011
复制
发表时间：
2007-05-01
影响因子：
2.4
通讯作者：
Robison, Barrie D.
中科院分区：
文献类型：
--
作者：
Moretz, Jason A.;Martins, Emilia P.;Robison, Barrie D.
对不同种群和物种动物的“行为综合症”的研究可以用来阐明进化的潜在机制。例如，一些人格综合症表明存在潜在的荷尔蒙联系，而大胆和攻击性之间的其他关系似乎是类似的选择压力的结果。在这里，我们使用了1种野生斑马鱼和2种实验室品系的斑马鱼(Danio Rerio)来研究5种行为指标之间的关系：浅滩、活动水平、捕食者方法、干扰后进食的潜伏期以及对镜子刺激的咬合。我们发现了活动综合症的证据，似乎潜在的新陈代谢成本影响着多种形式的行为的变化。大胆和攻击性之间存在联系的证据也很明显，但这取决于紧张程度，以及哪些特定的行为模式被确定为“大胆”的衡量标准。尽管实验室和野生来源的一些菌株的比较符合驯化综合症，但另一些则不是。大多数观察到的关系相对较弱，偶尔也不一致，反对与任何行为指标相关的强大的潜在遗传联系或多效性效应。相反，更重要的可能是研究选择性背景的细节，或者研究影响复杂行为特征的大量基因之间的一些(但不是全部)联系的长期影响。我们发现不同品系在大多数行为模式上都有很大的差异，但性别差异很小。其中一个品系(TM1)始终与其他品系(SH和Nadia)不同，它比其他两个品系更具社会性，更容易接近捕食者，从干扰中恢复所需的时间更短。
Studies of "behavioral syndromes" in different populations and species of animals can be used to shed light on the underlying mechanisms of evolution. For example, some personality syndromes suggest the existence of an underlying hormonal link, whereas other relationships between boldness and aggression appear to be the result of similar selective pressures. Here, we used 1 wild-derived and 2 laboratory strains of zebrafish (Danio rerio) to examine relationships among 5 behavioral measures: shoaling, activity level, predator approaches, latency to feed after a disturbance, and biting to a mirror stimulus. We found evidence of an activity syndrome, as if underlying metabolic costs influence variation in multiple forms of behavior. Evidence for a relationship between boldness and aggression was also apparent but depended both on strain and which specific behavior patterns were identified as measures of "boldness." Although some comparisons of laboratory and wild-derived strains were consistent with a domestication syndrome, others were not. Most observed relationships were relatively weak and occasionally inconsistent, arguing against strong underlying genetic linkages or pleiotropic effects relating any of the behavioral measures. Instead, it may be more important to study the details of selective context or the long-term impact of linkages between some, but not all, of a large set of genes influencing complex behavioral traits. We found profound differences among strains in most behavior patterns, but few sex differences. One strain (TM1) was consistently different from the others (SH and Nadia) being more social, more likely to approach predators, and taking less time to recover from disturbance than were the other 2 strains.