1
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Soliz MC, Abdala V. Musculoskeletal and tendinous details of selected anomalies in the locomotor system of anurans. Anat Rec (Hoboken) 2024. [PMID: 38529857 DOI: 10.1002/ar.25430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 02/16/2024] [Accepted: 02/25/2024] [Indexed: 03/27/2024]
Abstract
Previous studies on anuran anomalies predominantly examine isolated cases or focus on external and skeletal features. Our study analyzes a comprehensive sample collected from 1991 to 2017, examining the muscle-tendon system in 24 anuran species across adult, juvenile, and metamorphic stages. This extensive sample size allows us to investigate consistent anomaly patterns across different developmental stages and anuran families, exploring potential common developmental or genetic factors. Our detailed anatomical examination, encompassing musculature, tendons, and skeletal structures, revealed that 21% of the specimens displayed anomalies, a noteworthy finding considering the extensive sample size and duration of the studied sample. Of these anomalies, 17% affected the locomotor system, predominantly in the upper limbs. Key anomalies included, forelimbs and hindlimbs brachydactyly, rotation in forelimbs, partial kyphotic lordosis, and scoliosis. Notably, the digit 4 in the forelimbs and digits 4 and 5 in the hindlimbs were particularly susceptible to teratogenic effects, indicating possible prolonged exposure during development. Our study also uncovered combinations of anomalies and identified a phenotype similar to Poland syndrome. The findings validate the "Logic of Monsters" (LoMo theory) by Alberch, although the name itself may not be deemed appropriate, showing that developmental disruptions in tetrapods are not random but follow distinct sequences and patterns. The name, while unfortunate, accurately reflects the unusual nature of these developmental anomalies. This contributes to the evolving "Evo-Devo-Path" framework, highlighting the study's importance in understanding developmental disruptions in tetrapods.
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Affiliation(s)
- Mónica C Soliz
- Consejo Nacional de Investigaciones Científicas y Técnicas, Facultad de Ciencias Naturales, Universidad Nacional de Salta, Salta, Argentina
| | - Virginia Abdala
- Instituto de Biodiversidad Neotropical, Facultad de Ciencias Naturales, Universidad Nacional de Tucumán-Consejo Nacional de Investigaciones Científicas y Técnicas, Cátedra de Biología General, Universidad Nacional de Tucumán, Tucumán, Argentina
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2
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Lazarte MDLÁ, Manzano A, Sanchez RS, Abdala V. Ontogeny of the meniscus in the anuran Xenopus laevis. Anat Rec (Hoboken) 2023; 306:457-469. [PMID: 36089759 DOI: 10.1002/ar.25076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 09/03/2022] [Accepted: 09/06/2022] [Indexed: 01/25/2023]
Abstract
The anuran knee joint is subjected to the jump, one of the tetrapods' most demanding mechanical stresses. Consistent with this continuous effort, the knee of the anurans has a complex structure comparable to that of an amniote. Here, we describe the ontogeny of the Xenopus knee tissues and study the morphogenesis of the knee joint shape by performing a geometric morphometric analysis of specially selected anatomical structures: the menisci and the long bone epiphyses. A meniscus is a crescent-shaped fibrocartilaginous structure, with a triangular cross-section inserted between joints surfaces. A meniscus transmits load across the tibiofemoral joint by increasing congruity of the long bone epiphysis and decreasing the resulting stress exerted on the articular cartilage. We ask two questions: (1) what is the tissue composition along the ontogeny of the menisci of a swimming frog? (2) How do the menisci acquire the shape that will allow their adjustment? We studied the structures and tissue ontogeny of the knee of several specimens of Xenopus laevis and evaluated the congruity of the knee structures across the species ontogeny. Histological sections showed that the cavitation process responsible for separating the menisci and the epiphyses seems to be pivotal in shaping the conformity of these structures and the long bone epiphyses of the hindlimbs. The geometric morphometric analysis allowed us to interpret three phases of differentiation associated with limb functionality. The characteristic shape of the meniscus appears early in the ontogeny of the knee, simultaneously with the epiphysis contours.
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Affiliation(s)
| | - Adriana Manzano
- Centro de Investigación Científica y Transferencia Tecnológica a la Producción (CICYTTP) CONICET, Diamante, Entre Ríos, Argentina
- Cátedra de Embriología y Anatomía Animal, Facultad de Ciencias y Tecnología (FCyT-UADER), Oro Verde, Entre Ríos, Argentina
| | - Romel S Sanchez
- Cátedra de Biología General, Facultad de Cs. Naturales e IML, UNT, Tucumán, Argentina
- Instituto Superior de Investigaciones Biológicas (INSIBIO) CONICET-UNT, and Instituto de Biología "Dr. Francisco D. Barbieri", Facultad de Bioquímica, Química y Farmacia, UNT, Tucumán, Argentina
- Cátedra de Fisiología, Departamento Biomédico-Fisiología, Facultad de Medicina, UNT, Tucumán, Argentina
| | - Virginia Abdala
- Instituto de Biodiversidad Neotropical (IBN), UNT-CONICET, Tucumán, Argentina
- Cátedra de Biología General, Facultad de Cs. Naturales e IML, UNT, Tucumán, Argentina
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3
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Van den Broeck M, Stock E, Duchateau L, Cornillie P. The sesamoid bone in the long abductor muscle tendon of the first digit in the dog. Anat Rec (Hoboken) 2021; 305:37-51. [PMID: 33943018 DOI: 10.1002/ar.24648] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 03/29/2021] [Accepted: 04/03/2021] [Indexed: 01/27/2023]
Abstract
The sesamoid bone in the tendon of the m. abductor digiti primi longus is considered present in most dog breeds and is described to be radiologically detectable at the level of the carpus from the age of 4 months. However, an extensive investigation of this sesamoid bone has not been conducted before. The aim of this study was therefore to determine its prevalence in different dog breeds, to describe its histological development, and to determine the age at which it becomes radiologically visible. The prevalence of the sesamoid bone was assessed on radiographic images of the carpus or by dissection of the carpal region in 743 adult dogs of 115 breeds. Its development was studied by dissection and histological analysis in 45 puppies and its timing of radiological appearance was evaluated in 209 puppies. At least one sesamoid bone was present in all adult dogs, except for 14 dogs of six breeds of predominantly the small breed category. The lowest prevalence rate of 38.46% was exhibited in the French bulldog. The histological development could be divided into five stages. The first radiographic appearance corresponded to the coalescence of smaller ossification centers into one big nucleus (stage 4). The mean time of radiographic appearance was 108.4 days. This study provides extensive data on the prevalence and timing of the radiographic appearance of a sesamoid at the carpus of the dog. The data on radiographic appearance may be helpful in the age estimation of puppies.
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Affiliation(s)
- Martine Van den Broeck
- Department of Morphology, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Emmelie Stock
- Department of Veterinary Medical Imaging and Small Animal Orthopaedics, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Luc Duchateau
- Biometrics Research Center, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Pieter Cornillie
- Department of Morphology, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
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4
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Fontanarrosa G, Fratani J, Vera MC. Delimiting the boundaries of sesamoid identities under the network theory framework. PeerJ 2020; 8:e9691. [PMID: 32874781 PMCID: PMC7439958 DOI: 10.7717/peerj.9691] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 07/19/2020] [Indexed: 11/20/2022] Open
Abstract
Sesamoid identity has long been the focus of debate, and how they are linked to other elements of the skeleton has often been considered relevant to their definition. A driving hypothesis of our work was that sesamoids’ nature relies deeply on their connections, and thus we propose an explicit network framework to investigate this subject in Leptodactylus latinasus (Anura: Leptodactylidae). Through the dissection of L. latinasus’ skeleton, we modeled its anatomical network where skeletal elements were considered nodes while joints, muscles, tendons, and aponeurosis were considered links. The skeletal elements were categorized into canonical skeletal pieces, embedded sesamoids, and glide sesamoids. We inquired about the general network characterization and we have explored further into sesamoid connectivity behavior. We found that the network is structured in a modular hierarchical organization, with five modules on the first level and two modules on the second one. The modules reflect a functional, rather than a topological proximity clustering of the skeleton. The 25 sesamoid pieces are members of four of the first-level modules. Node parameters (centrality indicators) showed that: (i) sesamoids are, in general terms, peripheral elements of the skeleton, loosely connected to the canonical bone structures; (ii) embedded sesamoids are not significantly distinguishable from canonical skeletal elements; and (iii) glide sesamoids exhibit the lowest centrality values and strongly differ from both canonical skeletal elements and embedded sesamoids. The loose connectivity pattern of sesamoids, especially glides, could be related to their evolvability, which in turn seems to be reflected in their morphological variation and facultative expression. Based on the connectivity differences among skeletal categories found in our study, an open question remains: can embedded and glide sesamoids be defined under the same criteria? This study presents a new approach to the study of sesamoid identity and to the knowledge of their morphological evolution.
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Affiliation(s)
- Gabriela Fontanarrosa
- Instituto de Biodiversidad Neotropical (IBN), CONICET-UNT, Yerba Buena, Tucumán, Argentina
| | - Jessica Fratani
- Unidad Ejecutora Lillo (UEL), CONICET-Fundación Miguel Lillo, San Miguel, Tucumán, Argentina
| | - Miriam C Vera
- Laboratorio de Genética Evolutiva, Instituto de Biología Subtropical (IBS), CONICET-UNaM, Posadas, Misiones, Argentina
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5
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Fratani J, Ponssa ML, Rada M, Abdala V. The influence of locomotion and habitat use on tendo-muscular units of an anuran clade (Anura, Diphyabatrachia). ZOOL ANZ 2020. [DOI: 10.1016/j.jcz.2019.11.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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6
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Abdala V, Vera MC, Amador LI, Fontanarrosa G, Fratani J, Ponssa ML. Sesamoids in tetrapods: the origin of new skeletal morphologies. Biol Rev Camb Philos Soc 2019; 94:2011-2032. [PMID: 31359608 DOI: 10.1111/brv.12546] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 06/24/2019] [Accepted: 06/26/2019] [Indexed: 02/06/2023]
Abstract
Along with supernumerary bones, sesamoids, defined as any organized intratendinous/intraligamentous structure, including those composed of fibrocartilage, adjacent to an articulation or joint, have been frequently considered as enigmatic structures associated with the joints of the skeletal system of vertebrates. This review allows us to propose a dynamic model to account for part of skeletal phenotypic diversity: during evolution, sesamoids can become displaced, attaching to and detaching from the long bone epiphyses and diaphysis. Epiphyses, apophyses and detached sesamoids are able to transform into each other, contributing to the phenotypic variability of the tetrapod skeleton. This dynamic model is a new paradigm to delineate the contribution of sesamoids to skeletal diversity. Herein, we first present a historical approach to the study of sesamoids, discussing the genetic versus epigenetic theories of their genesis and growth. Second, we construct a dynamic model. Third, we present a summary of literature on sesamoids of the main groups of tetrapods, including veterinary and human clinical contributions, which are the best-studied aspects of sesamoids in recent decades. Finally, we discuss the identity of certain structures that have been labelled as sesamoids despite insufficient formal testing of homology. We also propose a new definition to help the identification of sesamoids in general. This review is particularly timely, given the recent increasing interest and research activity into the developmental biology and mechanics of sesamoids. With this updated and integrative discussion, we hope to pave the way to improve the understanding of sesamoid biology and evolution.
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Affiliation(s)
- Virginia Abdala
- Cátedra de Biología General, Facultad de Ciencias Naturales e IML, UNT, Miguel Lillo 205, 4000, San Miguel de Tucumán, Argentina.,Instituto de Biodiversidad Neotropical, CONICET- UNT, Horco Molle s/n Yerba Buena, 4107, Tucumán, Argentina
| | - Miriam C Vera
- Instituto de Biología Subtropical (CONICET-UNaM), Facultad de Ciencias Exactas Químicas y Naturales, Universidad Nacional de Misiones, Félix de Azara 1552, CPA N3300LQF, Posadas, Argentina
| | - Lucila I Amador
- Unidad Ejecutora Lillo, FML-CONICET, Miguel Lillo 251, 4000, San Miguel de Tucumán, Argentina
| | - Gabriela Fontanarrosa
- Instituto de Biodiversidad Neotropical, CONICET- UNT, Horco Molle s/n Yerba Buena, 4107, Tucumán, Argentina
| | - Jessica Fratani
- Unidad Ejecutora Lillo, FML-CONICET, Miguel Lillo 251, 4000, San Miguel de Tucumán, Argentina
| | - María L Ponssa
- Unidad Ejecutora Lillo, FML-CONICET, Miguel Lillo 251, 4000, San Miguel de Tucumán, Argentina
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7
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Fratani J, Ponssa ML, Abdala V. Evolution of tendon shape in an anuran clade and its relation to size, phylogeny and locomotion. J Zool (1987) 2018. [DOI: 10.1111/jzo.12639] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- J. Fratani
- Unidad Ejecutora Lillo (CONICET‐Fundación Miguel Lillo) Tucumán Argentina
| | - M. L. Ponssa
- Unidad Ejecutora Lillo (CONICET‐Fundación Miguel Lillo) Tucumán Argentina
| | - V. Abdala
- Cátedra de Biología General Facultad de Ciencias Naturales e IML Instituto de Biodiversidad Neotropical UNT‐CONICET Tucumán Argentina
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8
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Vera MC, Abdala V, Aráoz E, Ponssa ML. Movement and joints: effects of overuse on anuran knee tissues. PeerJ 2018; 6:e5546. [PMID: 30186699 PMCID: PMC6120441 DOI: 10.7717/peerj.5546] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Accepted: 08/07/2018] [Indexed: 11/22/2022] Open
Abstract
Movement plays a main role in the correct development of joint tissues. In tetrapods, changes in normal movements produce alterations of such tissues during the ontogeny and in adult stages. The knee-joint is ideal for observing the influence of movement disorders, due to biomechanical properties of its components, which are involved in load transmission. We analyze the reaction of knee tissues under extreme exercise in juveniles and adults of five species of anurans with different locomotor modes. We use anurans as the case study because they undergo great mechanical stress during locomotion. We predicted that (a) knee tissues subjected to overuse will suffer a structural disorganization process; (b) adults will experience deeper morphological changes than juveniles; and (c) morphological changes will be higher in jumpers compared to walkers. To address these questions, we stimulated specimens on a treadmill belt during 2 months. We performed histological analyses of the knee of both treated and control specimens. As we expected, overuse caused structural changes in knee tissues. These alterations were gradual and higher in adults, and similar between jumpers and walkers species. This study represents a first approach to the understanding of the dynamics of anuran knee tissues during the ontogeny, and in relation to locomotion. Interestingly, the alterations found were similar to those observed in anurans subjected to reduced mobility and also to those described in joint diseases (i.e., osteoarthritis and tendinosis) in mammals, suggesting that among tetrapods, changes in movement generate similar responses in the tissues involved.
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Affiliation(s)
- Miriam Corina Vera
- Unidad Ejecutora Lillo (UEL), CONICET-Fundación Miguel Lillo, San Miguel de Tucumán, Argentina
| | - Virginia Abdala
- Instituto de Biodiversidad Neotropical (IBN), UNT-CONICET, San Miguel de Tucumán, Argentina
| | - Ezequiel Aráoz
- Instituto de Ecología Regional, Universidad Nacional de Tucumán, Yerba Buena, Tucumán, Argentina
| | - María Laura Ponssa
- Unidad Ejecutora Lillo (UEL), CONICET-Fundación Miguel Lillo, San Miguel de Tucumán, Argentina
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9
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Reyes‐Amaya N, Jerez A, Flores D. Morphology and Postnatal Development of Lower Hindlimbs in
Desmodus rotundus
(Chiroptera: Phyllostomidae): A Comparative Study. Anat Rec (Hoboken) 2017; 300:2150-2165. [DOI: 10.1002/ar.23646] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 05/30/2017] [Accepted: 06/16/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Nicolás Reyes‐Amaya
- Unidad Ejecutora Lillo (CONICET—Fundación Miguel Lillo)San Miguel de Tucumán4000 Argentina
| | - Adriana Jerez
- Laboratorio de Ecología EvolutivaDepartamento de Biología, Facultad de Ciencias, Universidad Nacional de ColombiaSede Bogotá Colombia
| | - David Flores
- Unidad Ejecutora Lillo (CONICET—Fundación Miguel Lillo)San Miguel de Tucumán4000 Argentina
- Instituto de Vertebrados, Fundación Miguel LilloSan Miguel de Tucumán4000 Argentina
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10
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Marcellini S, González F, Sarrazin AF, Pabón-Mora N, Benítez M, Piñeyro-Nelson A, Rezende GL, Maldonado E, Schneider PN, Grizante MB, Da Fonseca RN, Vergara-Silva F, Suaza-Gaviria V, Zumajo-Cardona C, Zattara EE, Casasa S, Suárez-Baron H, Brown FD. Evolutionary Developmental Biology (Evo-Devo) Research in Latin America. JOURNAL OF EXPERIMENTAL ZOOLOGY PART B-MOLECULAR AND DEVELOPMENTAL EVOLUTION 2016; 328:5-40. [PMID: 27491339 DOI: 10.1002/jez.b.22687] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Revised: 06/16/2016] [Accepted: 06/20/2016] [Indexed: 12/29/2022]
Abstract
Famous for its blind cavefish and Darwin's finches, Latin America is home to some of the richest biodiversity hotspots of our planet. The Latin American fauna and flora inspired and captivated naturalists from the nineteenth and twentieth centuries, including such notable pioneers such as Fritz Müller, Florentino Ameghino, and Léon Croizat who made a significant contribution to the study of embryology and evolutionary thinking. But, what are the historical and present contributions of the Latin American scientific community to Evo-Devo? Here, we provide the first comprehensive overview of the Evo-Devo laboratories based in Latin America and describe current lines of research based on endemic species, focusing on body plans and patterning, systematics, physiology, computational modeling approaches, ecology, and domestication. Literature searches reveal that Evo-Devo in Latin America is still in its early days; while showing encouraging indicators of productivity, it has not stabilized yet, because it relies on few and sparsely distributed laboratories. Coping with the rapid changes in national scientific policies and contributing to solve social and health issues specific to each region are among the main challenges faced by Latin American researchers. The 2015 inaugural meeting of the Pan-American Society for Evolutionary Developmental Biology played a pivotal role in bringing together Latin American researchers eager to initiate and consolidate regional and worldwide collaborative networks. Such networks will undoubtedly advance research on the extremely high genetic and phenotypic biodiversity of Latin America, bound to be an almost infinite source of amazement and fascinating findings for the Evo-Devo community.
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Affiliation(s)
- Sylvain Marcellini
- Laboratorio de Desarrollo y Evolución, Departamento de Biología Celular, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
| | - Favio González
- Facultad de Ciencias, Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Andres F Sarrazin
- Instituto de Química, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
| | | | - Mariana Benítez
- Laboratorio Nacional de Ciencias de la Sostenibilidad, Instituto de Ecología, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Alma Piñeyro-Nelson
- Departamento de Producción Agrícola y Animal, Universidad Autónoma Metropolitana, Xochimilco, Ciudad de México, México
| | - Gustavo L Rezende
- Universidade Estadual do Norte Fluminense, CBB, LQFPP, Campos dos Goytacazes, RJ, Brazil
| | - Ernesto Maldonado
- EvoDevo Lab, Unidad de Sistemas Arrecifales, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Puerto Morelos, Quintana Roo, México
| | | | | | - Rodrigo Nunes Da Fonseca
- Núcleo em Ecologia e Desenvolvimento SócioAmbiental de Macaé (NUPEM), Campus Macaé, Universidade Federal do Rio de Janeiro, Macae, RJ, Brazil
| | | | | | | | | | - Sofia Casasa
- Department of Biology, Indiana University, Bloomington, IN, USA
| | | | - Federico D Brown
- Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo, São Paulo, SP, Brazil
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11
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Perotti MG, Pueta M, Jara FG, Úbeda CA, Moreno Azocar DL. Lack of functional link in the tadpole morphology induced by predators. Curr Zool 2016; 62:227-235. [PMID: 29491910 PMCID: PMC5804239 DOI: 10.1093/cz/zow014] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Accepted: 09/10/2015] [Indexed: 11/14/2022] Open
Abstract
Most studies of predator-induced plasticity have focused on documenting how prey species respond to predators by modifying phenotypic traits and how traits correlate with fitness. We have previously shown that Pleurodema thaul tadpoles exposed to the dragonfly Rhionaeschna variegata responded strongly by showing morphological changes, less activity, and better survival than non-exposed tadpoles. Here, we tested whether there is a functional link between morphological plasticity and increased survival in the presence of predators. Tadpoles that experienced predation risk were smaller, less developed, and much less active than tadpoles without this experience. Burst speed did not correlate significantly with morphological changes and predator-induced deeper tails did not act as a lure to divert predator strikes away from the head. Although we have previously found that tadpoles with predator-induced morphology survive better under a direct predator threat, our results on the functional link between morphology and fitness are not conclusive. Our results suggest that in P. thaul tadpoles (1) burst speed is not important to evade predators, (2) those exposed to predators reduce their activity, and (3) morphological changes do not divert predator attacks away from areas that compromise tadpole survivalEE. Our results show that morphological changes in P. thaul tadpoles do not explain burst speed or lure attraction, although there was a clear reduction of activity, which itself reduces predation. We propose that changes in tadpole activity could be further analyzed from another perspective, with morphological change as an indirect product of behavior mediated by physiological mechanisms.
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Affiliation(s)
- María Gabriela Perotti
- Laboratorio de Fotobiología, INIBIOMA, CONICET-Universidad Nacional del Comahue, Quintral 1250, Bariloche, Rio Negro, Argentina
| | - Mariana Pueta
- Laboratorio de Fotobiología, INIBIOMA, CONICET-Universidad Nacional del Comahue, Quintral 1250, Bariloche, Rio Negro, Argentina.,Departamento de Biología General. Universidad Nacional del Comahue, Quintral 1250, Bariloche, Rio Negro, Argentina, and
| | - Fabián Gastón Jara
- Laboratorio de Fotobiología, INIBIOMA, CONICET-Universidad Nacional del Comahue, Quintral 1250, Bariloche, Rio Negro, Argentina
| | - Carmen Adria Úbeda
- Departamento de Zoología, INIBIOMA, CONICET-Universidad Nacional del Comahue, Quintral 1250, 8400, Bariloche, Rio Negro, Argentina
| | - Debora Lina Moreno Azocar
- Laboratorio de Fotobiología, INIBIOMA, CONICET-Universidad Nacional del Comahue, Quintral 1250, Bariloche, Rio Negro, Argentina
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12
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Ponssa ML, Abdala V. Phenotypical expression of reduced mobility during limb ontogeny in frogs: the knee-joint case. PeerJ 2016; 4:e1730. [PMID: 26925340 PMCID: PMC4768673 DOI: 10.7717/peerj.1730] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Accepted: 02/02/2016] [Indexed: 11/20/2022] Open
Abstract
Movement is one of the most important epigenetic factors for normal development of the musculoskeletal system, particularly during genesis and joint development. Studies regarding alterations to embryonic mobility, performed on anurans, chickens and mammals, report important phenotypical similarities as a result of the reduction or absence of this stimulus. The precise stage of development at which the stimulus modification generates phenotypic modifications however, is yet to be determined. In this work we explore whether the developmental effects of abnormal mobility can appear at any time during development or whether they begin to express themselves in particular phases of tadpole ontogeny. We conducted five experiments that showed that morphological abnormalities are not visible until Stages 40–42. Morphology in earlier stages remains normal, probably due to the fact that the bones/muscles/tendons have not yet developed and therefore are not affected by immobilization. These results suggest the existence of a specific period of phenotypical expression in which normal limb movement is necessary for the correct development of the joint tissue framework.
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Affiliation(s)
- Maria Laura Ponssa
- Unidad Ejecutora Lillo (UEL), CONICET-Fundación Miguel Lillo , San Miguel de Tucumán, Tucumán , Argentina
| | - Virginia Abdala
- Cátedra de Biología General, Facultad de Ciencias Naturales e IML, UNT, Instituto de Biodiversidad Neotropical (IBN), UNT-CONICET , San Miguel de Tucumán, Tucumán , Argentina
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13
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Eyal S, Blitz E, Shwartz Y, Akiyama H, Schweitzer R, Zelzer E. On the development of the patella. Development 2015; 142:1831-9. [PMID: 25926361 DOI: 10.1242/dev.121970] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Accepted: 03/25/2015] [Indexed: 11/20/2022]
Abstract
The current view of skeletal patterning fails to explain the formation of sesamoid bones. These small bones, which facilitate musculoskeletal function, are exceptionally embedded within tendons. Although their structural design has long puzzled researchers, only a limited model for sesamoid bone development has emerged. To date, sesamoids are thought to develop inside tendons in response to mechanical signals from the attaching muscles. However, this widely accepted model has lacked substantiation. Here, we show that, contrary to the current view, in the mouse embryo the patella initially develops as a bony process at the anteriodistal surface of the femur. Later, the patella is separated from the femur by a joint formation process that is regulated by mechanical load. Concurrently, the patella becomes superficially embedded within the quadriceps tendon. At the cellular level, we show that, similar to bone eminences, the patella is formed secondarily by a distinct pool of Sox9- and Scx-positive progenitor cells. Finally, we show that TGFβ signaling is necessary for the specification of patella progenitors, whereas the BMP4 pathway is required for their differentiation. These findings establish an alternative model for patella development and provide the mechanical and molecular mechanisms that underlie this process. More broadly, our finding that activation of a joint formation program can be used to switch between the formation of bony processes and of new auxiliary bones provides a new perspective on plasticity during skeletal patterning and evolution.
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Affiliation(s)
- Shai Eyal
- Weizmann Institute of Science, Department of Molecular Genetics, PO Box 26, Rehovot 76100, Israel
| | - Einat Blitz
- Weizmann Institute of Science, Department of Molecular Genetics, PO Box 26, Rehovot 76100, Israel
| | - Yulia Shwartz
- Weizmann Institute of Science, Department of Molecular Genetics, PO Box 26, Rehovot 76100, Israel
| | - Haruhiko Akiyama
- Gifu University, Department of Orthopedics, Gifu City 501-1194, Japan
| | - Ronen Schweitzer
- Research Division, Shriners Hospital for Children, Portland, OR 97201, USA
| | - Elazar Zelzer
- Weizmann Institute of Science, Department of Molecular Genetics, PO Box 26, Rehovot 76100, Israel
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14
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Corina Vera M, Laura Ponssa M, Abdala V. Further Data on Sesamoid Identity from Two Anuran Species. Anat Rec (Hoboken) 2015; 298:1376-94. [PMID: 25810404 DOI: 10.1002/ar.23158] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Accepted: 01/26/2015] [Indexed: 11/07/2022]
Abstract
Considering that the identification of equivalent entities is the basis for any comparative analysis, we compare the histology, histochemistry, shape and dimensions of epiphyses, carpal and sesamoids in two anuran frogs. Our goal was to explore the morphological correspondence among these three skeletal elements in order to clarify the sesamoid identity. We studied the skeletogenesis, contour geometric morphometry and dimensions of forelimb elements of juveniles of two anurans species Leptodactylus bufonius and Rhinella arenarum. Skeletogenesis in anurans present a common trait between carpals and sesamoids: both elements exhibit endochondral ossification. A difference between these elements is the presence of fibrocartilage in the development of sesamoids. The geometric morphometry does not allow us to establish a shape pattern that can be compared either between sesamoids and epiphyses or carpals. With regard to dimensions, our data indicate that bones categorization based on these aspects is ambiguous and therefore is useless to classify of skeletal bones. The data about tissue differentiation of sesamoids provide evidence that support the idea that these elements should be considered part of the typical endowment of the vertebrate skeleton.
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Affiliation(s)
- Miriam Corina Vera
- Unidad Ejecutora Lillo, Instituto de Herpetología, CONICET-Fundación Miguel Lillo, Miguel Lillo 251, San Miguel de Tucumán 4000, Argentina
| | - María Laura Ponssa
- Unidad Ejecutora Lillo, Instituto de Herpetología, CONICET-Fundación Miguel Lillo, Miguel Lillo 251, San Miguel de Tucumán 4000, Argentina
| | - Virginia Abdala
- Instituto de Biodiversidad Neotropical, UNT-CONICET, Cátedra de Biología General, Facultad de Ciencias Naturales e IML, UNT. Miguel Lillo 205, San Miguel de Tucumán 4000, Argentina
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15
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Vera MC, Ponssa ML. Skeletogenesis in anurans: cranial and postcranial development in metamorphic and postmetamorphic stages ofLeptodactylus bufonius(Anura: Leptodactylidae). ACTA ZOOL-STOCKHOLM 2013. [DOI: 10.1111/azo.12007] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Miriam Corina Vera
- Fac. de Ciencias Nat. e Inst. Miguel Lillo Univ. Nacional de Tucumán Instituto de Herpetología Fundación Miguel Lillo Miguel Lillo 251 San Miguel de Tucumán (4000) Argentina
| | - María Laura Ponssa
- CONICET Instituto de Herpetología Fundación Miguel Lillo Miguel Lillo 251 San Miguel de Tucumán (4000) Argentina
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16
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Manzano A, Abdala V, Ponssa ML, Soliz M. Ontogeny and tissue differentiation of the pelvic girdle and hind limbs of anurans. ACTA ZOOL-STOCKHOLM 2012. [DOI: 10.1111/j.1463-6395.2012.00571.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Adriana Manzano
- CONICET-UADER; Matteri y España (3105); Diamante; Entre Ríos; Argentina
| | - Virginia Abdala
- Instituto de Herpetología; Facultad de Ciencias Naturales (UNT); Fundación Miguel Lillo-CONICET; Miguel Lillo 251 (4000), Tucumán; Argentina
| | - María L. Ponssa
- Instituto de Herpetología; Fundación Miguel Lillo-CONICET; Miguel Lillo 251 (4000), Tucumán; Argentina
| | - Mónica Soliz
- Instituto de Herpetología; Fundación Miguel Lillo-CONICET; Miguel Lillo 251 (4000), Tucumán; Argentina
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