EVOLUTION OF PUFFERFISH INFLATION BEHAVIOR
EVOLUTION OF PUFFERFISH INFLATION BEHAVIOR
复制标题
河豚通货膨胀行为的演变
DOI：
10.1111/j.1558-5646.1997.tb02438.x
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发表时间：
1997
期刊：
影响因子：
3.3
通讯作者：
R. Turingan
中科院分区：
文献类型：
--
作者：
P. Wainwright;R. Turingan
根据独立衍生的四齿状鱼类系统发育假说，研究了河豚异常膨胀机制的进化。河鲀姐妹分类群四齿兽科和双齿兽科的所有成员都存在膨胀行为。然而，大多数其他四齿鱼表现出两种功能相似的行为。所有类群都表现出“咳嗽”行为，除了以三棘科为代表的所有其他四齿兽类的姐妹群外，所有谱系都从嘴中“吹”出强烈的水流来挖掘猎物。通过对主要谱系代表的肌肉活动的解剖分析和肌电图记录，确定了与这三种行为相关的功能专门化。三种颊压缩行为的系统发育分布及其功能基础表明：（1）膨胀行为的进化涉及头部的主要结构修改，该修改以一种新颖的机制发挥作用，该机制将口底的凹陷与颊腔的后部扩张联系起来； （2）这三种行为中使用的四个关键头部肌肉的收缩模式在行为和类群上通常是相似的； （3）然而，肌肉活动的两种显着变化的分布与这三种行为代表从咳嗽到吹水再到充气的转变系列的假设是一致的。吹水的运动模式是咳嗽运动模式的稍微修改版本，充气运动模式保留了吹水的专业化并添加了一个额外的修改。至少一种锉鱼属的膨胀行为不发达的趋同进化提供了证据，表明四齿鱼容易进化出这种不寻常的防御行为。大多数四齿兽谱系中存在发育良好的吹水行为，这可能代表了一种中间的功能特化，增加了膨胀进化的可能性。
The evolution of the extraordinary inflation mechanism of pufferfishes was studied in the light of an independently derived phylogenetic hypothesis of tetraodontiform fishes. Inflation behavior is found in all members of the puffer sister taxa Tetraodontidae and Diodontidae. However, most other tetraodontiform fishes exhibit two functionally similar behaviors. All taxa exhibit a “coughing” behavior and, with the exception of the sister‐group to all other tetraodontiforms, represented by the Triacanthidae, all lineages “blow” strong jets of water out of their mouth to excavate prey. Functional specializations associated with the three behaviors were identified from anatomical analyses and electromyographic recordings of muscle activity in representatives of the major lineages of the order. The phylogenetic distribution of the three buccal compression behaviors and their functional bases indicates the following: (1) the evolution of inflation behavior involved major structural modifications of the head that function in a novel mechanism that links depression of the floor of the mouth to posterior expansion of the buccal cavity; (2) the contraction patterns of four key head muscles used in the three behaviors are generally similar both across behaviors and taxa; (3) however, the distribution of the two significant modifications of muscle activity are consistent with the hypothesis that the three behaviors represent a transformation series from coughing to water blowing to inflation. The motor pattern for water blowing is a slightly modified version of that seen in coughing, and the inflation motor pattern retains the blowing specialization and adds a single additional modification. The convergent evolution of a poorly developed inflation behavior in at least one genus of filefish provides evidence that tetraodontiform fishes are predisposed to the evolution of this unusual defensive behavior. The presence of a well developed water‐blowing behavior in most tetraodontiform lineages may represent an intermediate functional specialization that increased the probability of the evolution of inflation.