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Lukas P, Olsson L. Bapx1
is required for jaw joint development in amphibians. Evol Dev 2018; 20:192-206. [DOI: 10.1111/ede.12267] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Paul Lukas
- Institut für Zoologie und Evolutionsforschung mit Phyletischem Museum, Ernst‐Haeckel‐Haus und BiologiedidaktikFriedrich‐Schiller‐Universität JenaJenaGermany
| | - Lennart Olsson
- Institut für Zoologie und Evolutionsforschung mit Phyletischem Museum, Ernst‐Haeckel‐Haus und BiologiedidaktikFriedrich‐Schiller‐Universität JenaJenaGermany
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Schneider RA. Neural crest and the origin of species-specific pattern. Genesis 2018; 56:e23219. [PMID: 30134069 PMCID: PMC6108449 DOI: 10.1002/dvg.23219] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 05/15/2018] [Accepted: 05/16/2018] [Indexed: 12/20/2022]
Abstract
For well over half of the 150 years since the discovery of the neural crest, the special ability of these cells to function as a source of species-specific pattern has been clearly recognized. Initially, this observation arose in association with chimeric transplant experiments among differentially pigmented amphibians, where the neural crest origin for melanocytes had been duly noted. Shortly thereafter, the role of cranial neural crest cells in transmitting species-specific information on size and shape to the pharyngeal arch skeleton as well as in regulating the timing of its differentiation became readily apparent. Since then, what has emerged is a deeper understanding of how the neural crest accomplishes such a presumably difficult mission, and this includes a more complete picture of the molecular and cellular programs whereby neural crest shapes the face of each species. This review covers studies on a broad range of vertebrates and describes neural-crest-mediated mechanisms that endow the craniofacial complex with species-specific pattern. A major focus is on experiments in quail and duck embryos that reveal a hierarchy of cell-autonomous and non-autonomous signaling interactions through which neural crest generates species-specific pattern in the craniofacial integument, skeleton, and musculature. By controlling size and shape throughout the development of these systems, the neural crest underlies the structural and functional integration of the craniofacial complex during evolution.
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Affiliation(s)
- Richard A. Schneider
- Department of Orthopedic SurgeryUniversity of California at San Francisco, 513 Parnassus AvenueS‐1161San Francisco, California
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Fish JL. Evolvability of the vertebrate craniofacial skeleton. Semin Cell Dev Biol 2017; 91:13-22. [PMID: 29248471 DOI: 10.1016/j.semcdb.2017.12.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2017] [Revised: 11/22/2017] [Accepted: 12/07/2017] [Indexed: 01/05/2023]
Abstract
The skull is a vertebrate novelty. Morphological adaptations of the skull are associated with major evolutionary transitions, including the shift to a predatory lifestyle and the ability to masticate while breathing. These adaptations include the chondrocranium, dermatocranium, articulated jaws, primary and secondary palates, internal choanae, the middle ear, and temporomandibular joint. The incredible adaptive diversity of the vertebrate skull indicates an underlying bauplan that promotes evolvability. Comparative studies in craniofacial development suggest that the craniofacial bauplan includes three secondary organizers, two that are bilaterally placed at the Hinge of the developing jaw, and one situated in the midline of the developing face (the FEZ). These organizers regulate tissue interactions between the cranial neural crest, the neuroepithelium, and facial and pharyngeal epithelia that regulate the development and evolvability of the craniofacial skeleton.
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Affiliation(s)
- Jennifer L Fish
- University of Massachusetts Lowell, Department of Biological Sciences, 198 Riverside St., Olsen Hall 619, Lowell, MA 01854, U.S.A..
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Abstract
Lampreys belong to the superclass Cyclostomata and represent the most ancient group of vertebrates. Existing for over 360 million years, they are known as living fossils due to their many evolutionally conserved features. They are not only a keystone species for studying the origin and evolution of vertebrates, but also one of the best models for researching vertebrate embryonic development and organ differentiation. From the perspective of genetic information, the lamprey genome remains primitive compared with that of other higher vertebrates, and possesses abundant functional genes. Through scientific and technological progress, scientists have conducted in-depth studies on the nervous, endocrine, and immune systems of lampreys. Such research has significance for understanding and revealing the origin and evolution of vertebrates, and could contribute to a greater understanding of human diseases and treatments. This review presents the current progress and significance of lamprey research.
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Affiliation(s)
- Yang Xu
- College of Life Science, Liaoning Normal University, Dalian Liaoning 116081, China;Lamprey Research Center, Liaoning Normal University, Dalian Liaoning 116081, China
| | - Si-Wei Zhu
- College of Life Science, Liaoning Normal University, Dalian Liaoning 116081, China;Lamprey Research Center, Liaoning Normal University, Dalian Liaoning 116081, China
| | - Qing-Wei Li
- College of Life Science, Liaoning Normal University, Dalian Liaoning 116081, China;Lamprey Research Center, Liaoning Normal University, Dalian Liaoning 116081, China.
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Dupret V, Sanchez S, Goujet D, Ahlberg PE. The internal cranial anatomy of Romundina stellina Ørvig, 1975 (Vertebrata, Placodermi, Acanthothoraci) and the origin of jawed vertebrates-Anatomical atlas of a primitive gnathostome. PLoS One 2017; 12:e0171241. [PMID: 28170434 PMCID: PMC5295682 DOI: 10.1371/journal.pone.0171241] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Accepted: 01/16/2017] [Indexed: 11/19/2022] Open
Abstract
Placoderms are considered as the first jawed vertebrates and constitute a paraphyletic group in the stem-gnathostome grade. The acanthothoracid placoderms are among the phylogenetically most basal and morphologically primitive gnathostomes, but their neurocranial anatomy is poorly understood. Here we present a near-complete three-dimensional skull of Romundina stellina, a small Early Devonian acanthothoracid from the Canadian Arctic Archipelago, scanned with propagation phase contrast microtomography at a 7.46 μm isotropic voxel size at the European Synchrotron Radiation Facility, Grenoble, France. This is the first model of an early gnathostome skull produced using this technique, and as such represents a major advance in objectivity compared to past descriptions of placoderm neurocrania on the basis of grinding series. Despite some loss of material along an oblique crack, most of the internal structures are remarkably preserved, and most of the missing structures can be reconstructed by symmetry. This virtual approach offers the possibility to connect with certainty all the external foramina to the blood and nerve canals and the central structures, and thus identify accurate homologies without destroying the specimen. The high level of detail enables description of the main arterial, venous and nerve canals of the skull, and other perichondrally ossified endocranial structures such as the palatoquadrate articulations, the endocranial cavity and the inner ear cavities. The braincase morphology appears less extreme than that of Brindabellaspis, and is in some respects more reminiscent of a basal arthrodire such as Kujdanowiaspis.
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Affiliation(s)
- Vincent Dupret
- Science for Life Laboratory and Uppsala University, Department of Organismal Biology, Subdepartment of Evolution and Development, Norbyvägen, SE Uppsala, Sweden
- * E-mail: (VD); (PEA)
| | - Sophie Sanchez
- Science for Life Laboratory and Uppsala University, Department of Organismal Biology, Subdepartment of Evolution and Development, Norbyvägen, SE Uppsala, Sweden
- European Synchrotron Radiation Facility, Grenoble, France
| | - Daniel Goujet
- Centre de Recherche sur la Paléobiodiversité et les Paléoenvironnements (CR2P, UMR 7207), Sorbonne Universités, MNHN, CNRS, UPMC-Paris 6, Muséum National d’Histoire Naturelle, Paris, France
| | - Per Erik Ahlberg
- Science for Life Laboratory and Uppsala University, Department of Organismal Biology, Subdepartment of Evolution and Development, Norbyvägen, SE Uppsala, Sweden
- * E-mail: (VD); (PEA)
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Kuratani S, Oisi Y, Ota KG. Evolution of the Vertebrate Cranium: Viewed from Hagfish Developmental Studies. Zoolog Sci 2016; 33:229-38. [DOI: 10.2108/zs150187] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Shigeru Kuratani
- Laboratory for Evolutionary Morphology, RIKEN, Kobe 650-0047, Japan
| | - Yasuhiro Oisi
- Development and Function of Inhibitory Neural Circuits, Max Planck Florida Institute for Neuroscience, One Max Planck Way, Jupiter, FL 33458-2906, USA
| | - Kinya G. Ota
- Marine Research Station, Institute of Cellular and Organismic Biology, Academia Sinica, Yilan 26242, Taiwan
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Havstad JC, Assis LC, Rieppel O. The semaphorontic view of homology. JOURNAL OF EXPERIMENTAL ZOOLOGY. PART B, MOLECULAR AND DEVELOPMENTAL EVOLUTION 2015; 324:578-87. [PMID: 26175214 PMCID: PMC5034804 DOI: 10.1002/jez.b.22634] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Accepted: 05/14/2015] [Indexed: 01/02/2023]
Abstract
The relation of homology is generally characterized as an identity relation, or alternatively as a correspondence relation, both of which are transitive. We use the example of the ontogenetic development and evolutionary origin of the gnathostome jaw to discuss identity and transitivity of the homology relation under the transformationist and emergentist paradigms respectively. Token identity and consequent transitivity of homology relations are shown to be requirements that are too strong to allow the origin of genuine evolutionary novelties. We consequently introduce the concept of compositional identity that is grounded in relations prevailing between parts (organs and organ systems) of a whole (organism). We recognize an ontogenetic identity of parts within a whole throughout the sequence of successive developmental stages of those parts: this is an intra-organismal character identity maintained throughout developmental trajectory. Correspondingly, we recognize a phylogenetic identity of homologous parts within two or more organisms of different species: this is an inter-species character identity maintained throughout evolutionary trajectory. These different dimensions of character identity--ontogenetic (through development) and phylogenetic (via shared evolutionary history)--break the transitivity of homology relations. Under the transformationist paradigm, the relation of homology reigns over the entire character (-state) transformation series, and thus encompasses the plesiomorphic as well as the apomorphic condition of form. In contrast, genuine evolutionary novelties originate not through transformation of ancestral characters (-states), but instead through deviating developmental trajectories that result in alternate characters. Under the emergentist paradigm, homology is thus synonymous with synapomorphy.
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Affiliation(s)
- Joyce C. Havstad
- Philosopher‐in‐ResidenceScience & EducationThe Field MuseumChicagoIllinois
| | - Leandro C.S. Assis
- Departamento de Botânica, Instituto de Ciências BiológicasUniversidade Federal de Minas GeraisBelo HorizonteMGBrazil
| | - Olivier Rieppel
- Center for Integrative ResearchScience & EducationThe Field MuseumChicagoIllinois
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Symes LB, Ayres MP, Cowdery CP, Costello RA. Signal diversification inOecanthustree crickets is shaped by energetic, morphometric, and acoustic trade-offs. Evolution 2015; 69:1518-1527. [DOI: 10.1111/evo.12668] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Accepted: 04/15/2015] [Indexed: 11/29/2022]
Affiliation(s)
- L. B. Symes
- Department of Biological Sciences; Dartmouth College; Hanover New Hampshire 03755
- Department of Biological Sciences; University of Wisconsin; Milwaukee Wisconsin 53201
| | - M. P. Ayres
- Department of Biological Sciences; Dartmouth College; Hanover New Hampshire 03755
| | - C. P. Cowdery
- Department of Biological Sciences; Dartmouth College; Hanover New Hampshire 03755
| | - R. A. Costello
- Department of Biological Sciences; Dartmouth College; Hanover New Hampshire 03755
- Department of Biology; University of Virginia; Charlottesville Virginia 22904
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Miyashita T. Fishing for jaws in early vertebrate evolution: a new hypothesis of mandibular confinement. Biol Rev Camb Philos Soc 2015; 91:611-57. [DOI: 10.1111/brv.12187] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Revised: 03/18/2015] [Accepted: 03/19/2015] [Indexed: 12/21/2022]
Affiliation(s)
- Tetsuto Miyashita
- Department of Biological Sciences; University of Alberta; Edmonton Alberta T6G 2E9 Canada
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11
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Ziermann JM, Miyashita T, Diogo R. Cephalic muscles of Cyclostomes (hagfishes and lampreys) and Chondrichthyes (sharks, rays and holocephalans): comparative anatomy and early evolution of the vertebrate head muscles. Zool J Linn Soc 2014. [DOI: 10.1111/zoj.12186] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Janine M. Ziermann
- Department of Anatomy; Howard University College of Medicine; Washington DC 20059 USA
| | - Tetsuto Miyashita
- Department of Biological Sciences; University of Alberta; Edmonton AB T6E 2N4 Canada
| | - Rui Diogo
- Department of Anatomy; Howard University College of Medicine; Washington DC 20059 USA
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12
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A primitive fish from the Cambrian of North America. Nature 2014; 512:419-22. [DOI: 10.1038/nature13414] [Citation(s) in RCA: 106] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Accepted: 04/29/2014] [Indexed: 12/16/2022]
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Compagnucci C, Fish J, Depew MJ. Left-right asymmetry of the gnathostome skull: its evolutionary, developmental, and functional aspects. Genesis 2014; 52:515-27. [PMID: 24753133 DOI: 10.1002/dvg.22786] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Accepted: 04/21/2014] [Indexed: 11/06/2022]
Abstract
Much of the gnathostome (jawed vertebrate) evolutionary radiation was dependent on the ability to sense and interpret the environment and subsequently act upon this information through utilization of a specialized mode of feeding involving the jaws. While the gnathostome skull, reflective of the vertebrate baüplan, typically is bilaterally symmetric with right (dextral) and left (sinistral) halves essentially representing mirror images along the midline, both adaptive and abnormal asymmetries have appeared. Herein we provide a basic primer on studies of the asymmetric development of the gnathostome skull, touching briefly on asymmetry as a field of study, then describing the nature of cranial development and finally underscoring evolutionary and functional aspects of left-right asymmetric cephalic development.
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Affiliation(s)
- Claudia Compagnucci
- Unit of Neuromuscular and Neurodegenerative Disorders, Laboratory of Molecular Medicine, Department of Neurosciences, Bambino Gesù Children's Research Hospital, IRCCS, 00165, Rome, Italy
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Dupret V, Sanchez S, Goujet D, Tafforeau P, Ahlberg PE. A primitive placoderm sheds light on the origin of the jawed vertebrate face. Nature 2014; 507:500-3. [DOI: 10.1038/nature12980] [Citation(s) in RCA: 108] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Accepted: 12/30/2013] [Indexed: 11/09/2022]
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Nawaz S, Schweitzer J, Jahn O, Werner HB. Molecular evolution of myelin basic protein, an abundant structural myelin component. Glia 2013; 61:1364-77. [DOI: 10.1002/glia.22520] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Schanila Nawaz
- Max Planck Institute of Experimental Medicine; Göttingen; Germany
| | - Jörn Schweitzer
- Developmental Biology; Institute of Biology 1; University of Freiburg; Germany
| | - Olaf Jahn
- Max Planck Institute of Experimental Medicine; Göttingen; Germany
| | - Hauke B. Werner
- Max Planck Institute of Experimental Medicine; Göttingen; Germany
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Compagnucci C, Debiais-Thibaud M, Coolen M, Fish J, Griffin JN, Bertocchini F, Minoux M, Rijli FM, Borday-Birraux V, Casane D, Mazan S, Depew MJ. Pattern and polarity in the development and evolution of the gnathostome jaw: both conservation and heterotopy in the branchial arches of the shark, Scyliorhinus canicula. Dev Biol 2013; 377:428-48. [PMID: 23473983 DOI: 10.1016/j.ydbio.2013.02.022] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2012] [Revised: 01/26/2013] [Accepted: 02/18/2013] [Indexed: 10/27/2022]
Abstract
The acquisition of jaws constitutes a landmark event in vertebrate evolution, one that in large part potentiated their success and diversification. Jaw development and patterning involves an intricate spatiotemporal series of reciprocal inductive and responsive interactions between the cephalic epithelia and the cranial neural crest (CNC) and cephalic mesodermal mesenchyme. The coordinated regulation of these interactions is critical for both the ontogenetic registration of the jaws and the evolutionary elaboration of variable jaw morphologies and designs. Current models of jaw development and evolution have been built on molecular and cellular evidence gathered mostly in amniotes such as mice, chicks and humans, and augmented by a much smaller body of work on the zebrafish. These have been partnered by essential work attempting to understand the origins of jaws that has focused on the jawless lamprey. Chondrichthyans (cartilaginous fish) are the most distant group to amniotes within extant gnathostomes, and comprise the crucial clade uniting amniotes and agnathans; yet despite their critical phylogenetic position, evidence of the molecular and cellular underpinnings of jaw development in chondrichthyans is still lacking. Recent advances in genome and molecular developmental biology of the lesser spotted dogfish shark, Scyliorhinus canicula, make it ideal for the molecular study of chondrichthyan jaw development. Here, following the 'Hinge and Caps' model of jaw development, we have investigated evidence of heterotopic (relative changes in position) and heterochronic (relative changes in timing) shifts in gene expression, relative to amniotes, in the jaw primordia of S. canicula embryos. We demonstrate the presence of clear proximo-distal polarity in gene expression patterns in the shark embryo, thus establishing a baseline molecular baüplan for branchial arch-derived jaw development and further validating the utility of the 'Hinge and Caps' model in comparative studies of jaw development and evolution. Moreover, we correlate gene expression patterns with the absence of a lambdoidal junction (formed where the maxillary first arch meets the frontonasal processes) in chondrichthyans, further highlighting the importance of this region for the development and evolution of jaw structure in advanced gnathostomes.
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Affiliation(s)
- Claudia Compagnucci
- Department of Craniofacial Development, King's College London, Floor 27, Guy's Hospital, London Bridge, London SE1 9RT, UK
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New perspectives on pharyngeal dorsoventral patterning in development and evolution of the vertebrate jaw. Dev Biol 2012; 371:121-35. [PMID: 22960284 DOI: 10.1016/j.ydbio.2012.08.026] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2012] [Revised: 08/22/2012] [Accepted: 08/22/2012] [Indexed: 12/27/2022]
Abstract
Patterning of the vertebrate facial skeleton involves the progressive partitioning of neural-crest-derived skeletal precursors into distinct subpopulations along the anteroposterior (AP) and dorsoventral (DV) axes. Recent evidence suggests that complex interactions between multiple signaling pathways, in particular Endothelin-1 (Edn1), Bone Morphogenetic Protein (BMP), and Jagged-Notch, are needed to pattern skeletal precursors along the DV axis. Rather than directly determining the morphology of individual skeletal elements, these signals appear to act through several families of transcription factors, including Dlx, Msx, and Hand, to establish dynamic zones of skeletal differentiation. Provocatively, this patterning mechanism is largely conserved from mouse and zebrafish to the jawless vertebrate, lamprey. This implies that the diversification of the vertebrate facial skeleton, including the evolution of the jaw, was driven largely by modifications downstream of a conversed pharyngeal DV patterning program.
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Affiliation(s)
- Shigeru Kuratani
- Laboratory for Evolutionary Morphology; RIKEN Center for Developmental Biology; Kobe Hyogo 650-0047 Japan
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Fish JL, Villmoare B, Köbernick K, Compagnucci C, Britanova O, Tarabykin V, Depew MJ. Satb2, modularity, and the evolvability of the vertebrate jaw. Evol Dev 2011; 13:549-64. [DOI: 10.1111/j.1525-142x.2011.00511.x] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Jennifer L. Fish
- Department of Craniofacial Development; King's College, London, Guy's Hospital; Floor 27, London Bridge; London; SE1 9RT; UK
| | - Brian Villmoare
- Department of Anthropology; University College London; 14 Taviton Street; London; WC1H 0BW; UK
| | - Katja Köbernick
- Department of Molecular Biology of Neuronal Signals; Max-Planck-Institute for Experimental Medicine; Hermann-Rein-Str. 3; 37075 Göttingen; Germany
| | - Claudia Compagnucci
- Department of Craniofacial Development; King's College, London, Guy's Hospital; Floor 27, London Bridge; London; SE1 9RT; UK
| | - Olga Britanova
- Department of Molecular Biology of Neuronal Signals; Max-Planck-Institute for Experimental Medicine; Hermann-Rein-Str. 3; 37075 Göttingen; Germany
| | - Victor Tarabykin
- Department of Molecular Biology of Neuronal Signals; Max-Planck-Institute for Experimental Medicine; Hermann-Rein-Str. 3; 37075 Göttingen; Germany
| | - Michael J. Depew
- Department of Craniofacial Development; King's College, London, Guy's Hospital; Floor 27, London Bridge; London; SE1 9RT; UK
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Barreiro-Iglesias A, Romaus-Sanjurjo D, Senra-Martínez P, Anadón R, Rodicio MC. Doublecortin is expressed in trigeminal motoneurons that innervate the velar musculature of lampreys: considerations on the evolution and development of the trigeminal system. Evol Dev 2011; 13:149-58. [DOI: 10.1111/j.1525-142x.2011.00465.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Schmidt J, Schuff M, Olsson L. A role for FoxN3 in the development of cranial cartilages and muscles in Xenopus laevis (Amphibia: Anura: Pipidae) with special emphasis on the novel rostral cartilages. J Anat 2011; 218:226-42. [PMID: 21050205 PMCID: PMC3042756 DOI: 10.1111/j.1469-7580.2010.01315.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/01/2010] [Indexed: 01/07/2023] Open
Abstract
The origin of morphological novelties is a controversial topic in evolutionary developmental biology. The heads of anuran larvae have several unique structures, including the supra- and infrarostral cartilages, the specialised structure of the gill basket (used for filtration), and novel cranial muscle arrangements. FoxN3, a member of the forkhead/winged helix family of transcription factors, has been implicated as important for normal craniofacial development in the pipid anuran Xenopus laevis. We have investigated the effects of functional knockdown of FoxN3 (using antisense oligonucleotide morpholino) on the development of the larval head skeleton and the associated cranial muscles in X. laevis. Our data complement earlier studies and provide a more complete account of the requirement of FoxN3 in chondrocranium development. In addition, we analyse the effects of FoxN3 knockdown on cranial muscle development. We show that FoxN3 knockdown primarily affects the novel skeletal structures unique to anuran larvae, i.e. the rostralia or the fine structure of the gill apparatus. The articulation between the infrarostral and Meckel's cartilage is malformed and the filigreed processes of the gill basket do not develop. Because these features do not develop after FoxN3 knockdown, the head morphology resembles that in the less specialised larvae of salamanders. Furthermore, the development of all cartilages derived from the neural crest is delayed and cranial muscle fibre development incomplete. The cartilage precursors initially condense in their proper position but later differentiate incompletely; several visceral arch muscles start to differentiate at their origin but fail to extend toward their insertion. Our findings indicate that FoxN3 is essential for the development of novel cartilages such as the infrarostral and other cranial tissues derived from the neural crest and, indirectly, also for muscle morphogenesis.
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Affiliation(s)
- Jennifer Schmidt
- Institut für Spezielle Zoologie und Evolutionsbiologie mit Phyletischem Museum, Friedrich-Schiller-Universität, Jena, Germany.
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Kuraku S, Takio Y, Sugahara F, Takechi M, Kuratani S. Evolution of oropharyngeal patterning mechanisms involving Dlx and endothelins in vertebrates. Dev Biol 2010; 341:315-23. [DOI: 10.1016/j.ydbio.2010.02.013] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2010] [Revised: 02/05/2010] [Accepted: 02/06/2010] [Indexed: 12/27/2022]
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New directions in craniofacial morphogenesis. Dev Biol 2009; 341:84-94. [PMID: 19941846 DOI: 10.1016/j.ydbio.2009.11.021] [Citation(s) in RCA: 102] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2009] [Revised: 10/29/2009] [Accepted: 11/17/2009] [Indexed: 01/15/2023]
Abstract
The vertebrate head is an extremely complicated structure: development of the head requires tissue-tissue interactions between derivates of all the germ layers and coordinated morphogenetic movements in three dimensions. In this review, we highlight a number of recent embryological studies, using chicken, frog, zebrafish and mouse, which have identified crucial signaling centers in the embryonic face. These studies demonstrate how small variations in growth factor signaling can lead to a diversity of phenotypic outcomes. We also discuss novel genetic studies, in human, mouse and zebrafish, which describe cell biological mechanisms fundamental to the growth and morphogenesis of the craniofacial skeleton. Together, these findings underscore the complex interactions leading to species-specific morphology. These and future studies will improve our understanding of the genetic and environmental influences underlying human craniofacial anomalies.
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Hibiya K, Katsumoto T, Kondo T, Kitabayashi I, Kudo A. Brpf1, a subunit of the MOZ histone acetyl transferase complex, maintains expression of anterior and posterior Hox genes for proper patterning of craniofacial and caudal skeletons. Dev Biol 2009; 329:176-90. [PMID: 19254709 DOI: 10.1016/j.ydbio.2009.02.021] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2008] [Revised: 01/22/2009] [Accepted: 02/18/2009] [Indexed: 11/15/2022]
Abstract
The epigenetic mechanism involving chromatin modification plays a critical role in the maintenance of the expression of Hox genes. Here, we characterize a mutant of the medaka fish, named biaxial symmetries (bis), in which brpf1, a subunit of the MOZ histone acetyl transferase (HAT) complex, is mutated. The bis mutant displayed patterning defects both in the anterior-posterior axis of the craniofacial skeleton and the dorsal-ventral axis of the caudal one. In the anterior region, the bis mutant exhibited craniofacial cartilage homeosis. The expression of Hox genes was decreased in the pharyngeal arches, suggesting that the pharyngeal segmental identities were altered in the bis mutant. In the posterior region, the bis mutant exhibited abnormal patterning of the caudal skeleton, which ectopically formed at the dorsal side of the caudal fin. The expression of Zic genes was decreased at the posterior region, suggesting that the dorsal-ventral axis formation of the posterior trunk was disrupted in the bis mutant. We also found that the MOZ-deficient mice exhibited an abnormal patterning of their craniofacial and cervical skeletons and a decrease of Hox transcripts. We propose a common role of the MOZ HAT complex in vertebrates, a complex which is required for the proper patterning for skeletal development.
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Affiliation(s)
- Kenta Hibiya
- Department of Biological Information, Tokyo Institute of Technology, 4259-B-33 Midori-ku, Nagatsuta, Yokohama 226-8501, Japan
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25
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Theissen G. Saltational evolution: hopeful monsters are here to stay. Theory Biosci 2009; 128:43-51. [PMID: 19224263 DOI: 10.1007/s12064-009-0058-z] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2009] [Accepted: 01/27/2009] [Indexed: 10/21/2022]
Abstract
Since 150 years it is hypothesized now that evolution always proceeds in a countless number of very small steps (Darwin in On the origin of species by means of natural selection or the preservation of favoured races in the struggle of life, Murray, London, 1859), a view termed "gradualism". Few contemporary biologists will doubt that gradualism reflects the most frequent mode of evolution, but whether it is the only one remains controversial. It has been suggested that in some cases profound ("saltational") changes may have occurred within one or a few generations of organisms. Organisms with a profound mutant phenotype that have the potential to establish a new evolutionary lineage have been termed "hopeful monsters". Recently I have reviewed the concept of hopeful monsters in this journal mainly from a historical perspective, and provided some evidence for their past and present existence. Here I provide a brief update on data and discussions supporting the view that hopeful monsters and saltational evolution are valuable biological concepts. I suggest that far from being mutually exclusive scenarios, both gradual and saltational evolution are required to explain the complexity and diversity of life on earth. In my view, gradual changes represent the usual mode of evolution, but are unlikely to be able to explain all key innovations and changes in body plans. Saltational changes involving hopeful monsters are probably very exceptional events, but since they have the potential to establish profound novelties sometimes facilitating adaptive radiations, they are of quite some importance, even if they would occur in any evolutionary lineage less than once in a million years. From that point of view saltational changes are not more bizarre scenarios of evolutionary change than whole genome duplications, endosymbiosis or impacts of meteorites. In conclusion I argue that the complete dismissal of saltational evolution is a major historical error of evolutionary biology tracing back to Darwin that needs to be rectified.
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Affiliation(s)
- Günter Theissen
- Department of Genetics, Friedrich Schiller University Jena, Jena, Germany.
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Yao T, Ohtani K, Wada H. Whole-Mount Observation of Pharyngeal and Trabecular Cartilage Development in Lampreys. Zoolog Sci 2008; 25:976-81. [DOI: 10.2108/zsj.25.976] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Depew MJ, Compagnucci C. Tweaking the hinge and caps: testing a model of the organization of jaws. JOURNAL OF EXPERIMENTAL ZOOLOGY PART B-MOLECULAR AND DEVELOPMENTAL EVOLUTION 2008; 310:315-35. [PMID: 18027841 DOI: 10.1002/jez.b.21205] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Historically, examinations of gnathostome skulls have indicated that for essentially the entirety of their existence, jaws have been characterized by a high degree of fidelity to an initial basic structural design that will then go on to manifest an amazing array of end-point phenotypes. These two traits-bauplan fidelity and elaboration of design-are inter-connected and striking, and beg a number of questions, including: Are all jaws made in the same manner and if not how not? To begin to tackle such questions, we herein operationally define jaws as two appositional, hinged cranial units for which polarity and potential modularity are characteristics, and then address what is necessary for them to form, including delineating both the sources of cells and tissues that will formally yield the jaws as well as what informs their ontogeny (e.g., sources of positional information and factors directing the interpretation of developmental cues). Following on this, we briefly describe a predictive, testable model of jaw development (the "Hinge and Caps" model) and present evidence that the Satb2+cell population in the developing jaw primordia of mice defines a developmentally and evolutionarily significant jaw module such as would be predicted by the model.
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Affiliation(s)
- Michael J Depew
- Department of Craniofacial Development, Guy's Hospital, King's College London, London, United Kingdom.
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Osório J, Rétaux S. The lamprey in evolutionary studies. Dev Genes Evol 2008; 218:221-35. [PMID: 18274775 DOI: 10.1007/s00427-008-0208-1] [Citation(s) in RCA: 85] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2007] [Accepted: 01/22/2008] [Indexed: 12/13/2022]
Abstract
Lampreys are a key species to study the evolution of morphological characters at the dawn of Craniates and throughout the evolution of the craniate's phylum. Here, we review a number of research fields where studies on lampreys have recently brought significant and fundamental insights on the timing and mechanisms of evolution, on the amazing diversification of morphology and on the emergence of novelties among Craniates. We report recent example studies on neural crest, muscle and the acquisition of jaws, where important technical advancements in lamprey developmental biology have been made (morpholino injections, protein-soaked bead applications or even the first transgenesis trials). We describe progress in the understanding and knowledge about lamprey anatomy and physiology (skeleton, immune system and buccal secretion), ecology (life cycle, embryology), phylogeny (genome duplications, monophyly of cyclostomes), paleontology, embryonic development and the beginnings of lamprey genomics. Finally, in a special focus on the nervous system, we describe how changes in signaling, neurogenesis or neuronal migration patterns during brain development may be at the origin of some important differences observed between lamprey and gnathostome brains.
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Affiliation(s)
- Joana Osório
- UPR 2197 Développement, Evolution, Plasticité du Système Nerveux, Institut de Neurobiologie Alfred Fessard, C.N.R.S., Avenue de la Terrasse, 91198 Gif-sur-Yvette, France
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Kuratani S, Ota KG. Primitive versus derived traits in the developmental program of the vertebrate head: views from cyclostome developmental studies. JOURNAL OF EXPERIMENTAL ZOOLOGY PART B-MOLECULAR AND DEVELOPMENTAL EVOLUTION 2008; 310:294-314. [PMID: 17705229 DOI: 10.1002/jez.b.21190] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Evolution can be viewed as a series of changes in the developmental program along the phylogenetic tree. To better understand the early evolution of the vertebrate skull, we can use the embryos of the cyclostome species as models. By comparing the cyclostome developmental patterns with those of gnathostomes, it becomes possible to distinguish the primitive and derived parts of the developmental program as taxon-specific traits. These traits are often recognizable as developmental constraints that define taxa by biasing the developmental trajectories within a certain limited range, resulting in morphological homologies in adults. These developmental constraints are distributed on the phylogenetic tree like the morphological character states of adult animals and are associated with specific regions of the tree. From this perspective, we emphasize the importance of considering gene expression and embryonic anatomy as the mechanistic bases that can result in homologous or nonhomologous morphological patterns at later developmental stages. Taking the acquisition of the jaw and trabecula cranii as examples, we demonstrate that a set of embryonic features can be coupled or decoupled during evolution and development. When they are coupled, they exert an ancestral developmental constraint that results in homologous morphological patterns, and when they are decoupled, the ancestral constraints tend to be abandoned, generating a new body plan. The heterotopy behind the specification of the oral domain is an example of decoupling, based on shifted tissue interactions. We also stress the importance of "developmental burden" in determining the sequential order of changes through evolution.
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Affiliation(s)
- Shigeru Kuratani
- Evolutionary Morphology Research Group, Center for Developmental Biology, RIKEN, Kobe, Japan.
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Willmore KE, Young NM, Richtsmeier JT. Phenotypic Variability: Its Components, Measurement and Underlying Developmental Processes. Evol Biol 2007. [DOI: 10.1007/s11692-007-9008-1] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Schuff M, Rössner A, Wacker SA, Donow C, Gessert S, Knöchel W. FoxN3 is required for craniofacial and eye development of Xenopus laevis. Dev Dyn 2007; 236:226-39. [PMID: 17089409 DOI: 10.1002/dvdy.21007] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
A functional knockdown of FoxN3, a member of subclass N of fork head/winged helix transcription factors in Xenopus laevis, leads to an abnormal formation of the jaw cartilage, absence or malformation of distinct cranial nerves, and reduced size of the eye. While the eye phenotype is due to an increased rate of apoptosis, the cellular basis of the jaw phenotype is more complex. The upper and lower jaw cartilages are derivatives of a subset of cranial neural crest cells, which migrate into the first pharyngeal arch. Histological analysis of FoxN3-depleted embryos reveals severe deformation and false positioning of infrarostral, Meckel's, and palatoquadrate cartilages, structural elements derived from the first pharyngeal arch, and of the ceratohyale, which derives from the second pharyngeal arch. The derivatives of the third and fourth pharyngeal arches are less affected. FoxN3 is not required for early neural crest migration. Defects in jaw formation rather arise by failure of differentiation than by positional effects of crest migration. By GST-pulldown analysis, we have identified two different members of histone deacetylase complexes (HDAC), xSin3 and xRPD3, as putative interaction partners of FoxN3, suggesting that FoxN3 regulates craniofacial and eye development by recruiting HDAC.
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Abstract
Craniofacial malformations are involved in three fourths of all congenital birth defects in humans, affecting the development of head, face, or neck. Tremendous progress in the study of craniofacial development has been made that places this field at the forefront of biomedical research. A concerted effort among evolutionary and developmental biologists, human geneticists, and tissue engineers has revealed important information on the molecular mechanisms that are crucial for the patterning and formation of craniofacial structures. Here, we highlight recent advances in our understanding of evo-devo as it relates to craniofacial morphogenesis, fate determination of cranial neural crest cells, and specific signaling pathways in regulating tissue-tissue interactions during patterning of craniofacial apparatus and the morphogenesis of tooth, mandible, and palate. Together, these findings will be beneficial for the understanding, treatment, and prevention of human congenital malformations and establish the foundation for craniofacial tissue regeneration.
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Affiliation(s)
- Yang Chai
- Center for Craniofacial Molecular Biology, School of Dentistry, University of Southern California, Los Angeles, California 90033, USA.
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