The diversity and evolution of electric organs in Neotropical knifefishes.
The diversity and evolution of electric organs in Neotropical knifefishes.
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DOI：
10.1186/s13227-022-00194-5
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发表时间：
2022-04-01
期刊：
影响因子：
4.1
通讯作者：
Kudoh T
中科院分区：
文献类型：
--
作者：
Bray IE;Alshami IJJ;Kudoh T
裸鳍鱼形目（Gymnotiformes），也被称为南美洲或新热带区的刀鱼，包括强电的Electrophorus electricus和许多其他弱电的物种。这些鱼拥有专门的电器官，能够向水中释放放电，用于电定位和交流，有时还用于捕食和防御。所有裸腹鱼形目的物种都具有来自肌肉组织的肌源性电器官（mEO），并且无鳍鱼科的成员独特地具有来自神经组织的神经源性电器官（nEO）。mEO可能由在尾肌内发育的“A型”电细胞（例如，在细吻无鳍龙中）或在尾肌下方发育的“B型”电细胞（例如，在高氏短尾鲈中）组成。在这篇综述中，我们讨论了在不同的Gymnotiform物种中发现的解剖学，放电和电器官的发展的多样性，以及可能导致这种多样性的生态和环境因素。然后，我们描述了各种假说的进化的电器官，并讨论了潜在的进化起源的nEO：一对神经索，位于两侧的主动脉在B。gauderio，并且其可能在其从共同祖先物种进化的过程中扩展并发展成Apteronotidae家族中的nEO。最后，我们比较了潜在的Gymnotiform arrhogenies和他们的支持证据。
The Gymnotiformes, also known as the South American or Neotropical knifefishes, include the strongly electric Electrophorus electricus and many other weakly electric species. These fish possess specialised electric organs that are able to release electric discharges into the water, for electrolocation and communication, and sometimes for predation and defence. All Gymnotiform species possess a myogenic electric organ (mEO) derived from the muscle tissue, and members of the Apteronotidae family uniquely possess a neurogenic electric organ (nEOs) derived from the nervous tissue. A mEO may consist of ‘Type A’ electrocytes that develop within the tail muscle (for example, in Apteronotus leptorhynchus), or ‘Type B’ electrocytes that develop below the tail muscle (for example, in Brachyhypopomus gauderio). In this review, we discuss the diversity in the anatomy, electric discharge and development of electric organs found in different Gymnotiform species, as well as the ecological and environmental factors that have likely contributed to this diversity. We then describe various hypotheses regarding the evolution of electric organs, and discuss the potential evolutionary origin of the nEO: a pair of nerve cords that are located on either side of the aorta in B. gauderio, and which may have expanded and developed into a nEO in the Apteronotidae family during its evolution from a common ancestral species. Finally, we compare potential Gymnotiform phylogenies and their supporting evidence.
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影响因子：
2.7
作者：
Alshami IJJ;Ono Y;Correia A;Hacker C;Lange A;Scholpp S;Kawasaki M;Ingham PW;Kudoh T
通讯作者：
Kudoh T
DOI：
10.1242/jeb.082362
发表时间：
2013-07-01
期刊：
The Journal of experimental biology
影响因子：
--
作者：
Baker CV;Modrell MS;Gillis JA
通讯作者：
Gillis JA
影响因子：
5.5
作者：
KEYNES, RD;MARTINSFERREIRA, H
通讯作者：
MARTINSFERREIRA, H
影响因子：
1.5
作者：
KIRSCHBAUM, F;MEUNIER, FJ
通讯作者：
MEUNIER, FJ
DOI：
10.1126/science.1254432
发表时间：
2014-06-27
期刊：
Science (New York, N.Y.)
影响因子：
--
作者：
Gallant JR;Traeger LL;Volkening JD;Moffett H;Chen PH;Novina CD;Phillips GN Jr;Anand R;Wells GB;Pinch M;Güth R;Unguez GA;Albert JS;Zakon HH;Samanta MP;Sussman MR
通讯作者：
Sussman MR