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The pectoral fin muscles of the coelacanth Latimeria chalumnae: Functional and evolutionary implications for the fin-to-limb transition and subsequent evolution of tetrapods.
Anat Rec (Hoboken) 2016; 299(9):1203-23AR

Abstract

To investigate the morphology and evolutionary origin of muscles in vertebrate limbs, we conducted anatomical dissections, computed tomography and kinematic analyses on the pectoral fin of the African coelacanth, Latimeria chalumnae. We discovered nine antagonistic pairs of pronators and supinators that are anatomically and functionally distinct from the abductor and adductor superficiales and profundi. In particular, the first pronator and supinator pair represents mono- and biarticular muscles; a portion of the muscle fibers is attached to ridges on the humerus and is separated into two monoarticular muscles, whereas, as a biarticular muscle, the main body is inserted into the radius by crossing two joints from the shoulder girdle. This pair, consisting of a pronator and supinator, constitutes a muscle arrangement equivalent to two human antagonistic pairs of monoarticular muscles and one antagonistic pair of biarticular muscles in the stylopod between the shoulder and elbow joints. Our recent kinesiological and biomechanical engineering studies on human limbs have demonstrated that two antagonistic pairs of monoarticular muscles and one antagonistic pair of biarticular muscles in the stylopod (1) coordinately control output force and force direction at the wrist and ankle and (2) achieve a contact task to carry out weight-bearing motion and maintain stable posture. Therefore, along with dissections of the pectoral fins in two lungfish species, Neoceratodus forsteri and Protopterus aethiopicus, we discuss the functional and evolutionary implications for the fin-to-limb transition and subsequent evolution of tetrapods. Anat Rec, 299:1203-1223, 2016. © 2016 Wiley Periodicals, Inc.

Authors+Show Affiliations

The Graduate School of Science and Technology, Keio University, Tokyo, Japan. Department of Anatomy, The Jikei University School of Medicine, Tokyo, Japan.Kyoto University, Kyoto, Japan.Aquamarine Fukushima, Marine Science Museum, Iwaki, Japan.Institute of Biomechanical Control Systems, Kanazawa Institute of Technology, Hakusan, Japan.Department of Anatomy, The Jikei University School of Medicine, Tokyo, Japan.Department of Veterinary Medicine, Nihon University, Fujisawa, Japan.Research Center of Computational Mechanics (RCCM), Inc, Tokyo, Japan.Aquamarine Fukushima, Marine Science Museum, Iwaki, Japan.Aquamarine Fukushima, Marine Science Museum, Iwaki, Japan.Aquamarine Fukushima, Marine Science Museum, Iwaki, Japan.Aquamarine Fukushima, Marine Science Museum, Iwaki, Japan.Aquamarine Fukushima, Marine Science Museum, Iwaki, Japan.Aquamarine Fukushima, Marine Science Museum, Iwaki, Japan.Aquamarine Fukushima, Marine Science Museum, Iwaki, Japan.National Museum of Nature and Science, Tokyo, Japan.Aquamarine Fukushima, Marine Science Museum, Iwaki, Japan.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

27343022

Citation

Miyake, Tsutomu, et al. "The Pectoral Fin Muscles of the Coelacanth Latimeria Chalumnae: Functional and Evolutionary Implications for the Fin-to-limb Transition and Subsequent Evolution of Tetrapods." Anatomical Record (Hoboken, N.J. : 2007), vol. 299, no. 9, 2016, pp. 1203-23.
Miyake T, Kumamoto M, Iwata M, et al. The pectoral fin muscles of the coelacanth Latimeria chalumnae: Functional and evolutionary implications for the fin-to-limb transition and subsequent evolution of tetrapods. Anat Rec (Hoboken). 2016;299(9):1203-23.
Miyake, T., Kumamoto, M., Iwata, M., Sato, R., Okabe, M., Koie, H., ... Abe, Y. (2016). The pectoral fin muscles of the coelacanth Latimeria chalumnae: Functional and evolutionary implications for the fin-to-limb transition and subsequent evolution of tetrapods. Anatomical Record (Hoboken, N.J. : 2007), 299(9), pp. 1203-23. doi:10.1002/ar.23392.
Miyake T, et al. The Pectoral Fin Muscles of the Coelacanth Latimeria Chalumnae: Functional and Evolutionary Implications for the Fin-to-limb Transition and Subsequent Evolution of Tetrapods. Anat Rec (Hoboken). 2016;299(9):1203-23. PubMed PMID: 27343022.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The pectoral fin muscles of the coelacanth Latimeria chalumnae: Functional and evolutionary implications for the fin-to-limb transition and subsequent evolution of tetrapods. AU - Miyake,Tsutomu, AU - Kumamoto,Minayori, AU - Iwata,Masamitsu, AU - Sato,Ryuichi, AU - Okabe,Masataka, AU - Koie,Hiroshi, AU - Kumai,Nori, AU - Fujii,Kenichi, AU - Matsuzaki,Koji, AU - Nakamura,Chiho, AU - Yamauchi,Shinya, AU - Yoshida,Kosuke, AU - Yoshimura,Kohtaroh, AU - Komoda,Akira, AU - Uyeno,Teruya, AU - Abe,Yoshitaka, Y1 - 2016/07/22/ PY - 2015/07/13/received PY - 2016/05/25/accepted PY - 2016/6/26/entrez PY - 2016/6/28/pubmed PY - 2017/7/25/medline KW - Latimeria chalumnae KW - fin-to-limb transition KW - mono- and biarticular muscles KW - pectoral fin musculature KW - weight-bearing motion SP - 1203 EP - 23 JF - Anatomical record (Hoboken, N.J. : 2007) JO - Anat Rec (Hoboken) VL - 299 IS - 9 N2 - To investigate the morphology and evolutionary origin of muscles in vertebrate limbs, we conducted anatomical dissections, computed tomography and kinematic analyses on the pectoral fin of the African coelacanth, Latimeria chalumnae. We discovered nine antagonistic pairs of pronators and supinators that are anatomically and functionally distinct from the abductor and adductor superficiales and profundi. In particular, the first pronator and supinator pair represents mono- and biarticular muscles; a portion of the muscle fibers is attached to ridges on the humerus and is separated into two monoarticular muscles, whereas, as a biarticular muscle, the main body is inserted into the radius by crossing two joints from the shoulder girdle. This pair, consisting of a pronator and supinator, constitutes a muscle arrangement equivalent to two human antagonistic pairs of monoarticular muscles and one antagonistic pair of biarticular muscles in the stylopod between the shoulder and elbow joints. Our recent kinesiological and biomechanical engineering studies on human limbs have demonstrated that two antagonistic pairs of monoarticular muscles and one antagonistic pair of biarticular muscles in the stylopod (1) coordinately control output force and force direction at the wrist and ankle and (2) achieve a contact task to carry out weight-bearing motion and maintain stable posture. Therefore, along with dissections of the pectoral fins in two lungfish species, Neoceratodus forsteri and Protopterus aethiopicus, we discuss the functional and evolutionary implications for the fin-to-limb transition and subsequent evolution of tetrapods. Anat Rec, 299:1203-1223, 2016. © 2016 Wiley Periodicals, Inc. SN - 1932-8494 UR - https://www.unboundmedicine.com/medline/citation/27343022/The_pectoral_fin_muscles_of_the_coelacanth_Latimeria_chalumnae:_Functional_and_evolutionary_implications_for_the_fin_to_limb_transition_and_subsequent_evolution_of_tetrapods_ L2 - https://doi.org/10.1002/ar.23392 DB - PRIME DP - Unbound Medicine ER -