Th e General Natural History of the African Lungfi shes

Mlewa, Chrisestom M.; Dunbrack, John M. Green Robert L.

doi:10.1201/b10357-8

Cited by 14 publications

(33 citation statements)

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“…These experiments demonstrated the existence of a series of common cardiopharyngeal progenitors along the anteroposterior axis that contribute to heart-tube growth and branchiomeric muscle morphogenesis. Interestingly, comparative anatomists suggested decades ago that branchiomeric muscles are related to muscles derived from the ‘visceral’ mesoderm (for example, of the heart and anterior gut) 37,38 , a view supported by the recent genetic and developmental studies reviewed here. Moreover, mouse clonal analyses revealed relationships between specific regions of the heart and subsets of branchiomeric muscles that go beyond the predictions of early comparative anatomists.…”

Section: The Emerging Concept Of the Cardiopharyngeal Fieldmentioning

confidence: 69%

A new heart for a new head in vertebrate cardiopharyngeal evolution

Diogo

Kelly

Christiaen

et al. 2015

Nature

221

276

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It has been more than 30 years since the publication of the new head hypothesis, which proposed that the vertebrate head is an evolutionary novelty resulting from the emergence of neural crest and cranial placodes. Neural crest generates the skull and associated connective tissues, whereas placodes produce sensory organs. However, neither crest nor placodes produce head muscles, which are a crucial component of the complex vertebrate head. We discuss emerging evidence for a surprising link between the evolution of head muscles and chambered hearts — both systems arise from a common pool of mesoderm progenitor cells within the cardiopharyngeal field of vertebrate embryos. We consider the origin of this field in non-vertebrate chordates and its evolution in vertebrates.

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Section: The Emerging Concept Of the Cardiopharyngeal Fieldmentioning

confidence: 69%

A new heart for a new head in vertebrate cardiopharyngeal evolution

Diogo

Kelly

Christiaen

et al. 2015

Nature

221

276

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“…Although numerous appendicular muscles have been described in the coelacanth Latimeria 1213, these descriptions are often excluded from recent discussions about the fins-limbs transition because dipnoans are phylogenetically closer to tetrapods than are coelacanths14. Therefore, most authors consider that a transition occurred after the dipnoan-tetrapod divergence, from a very simple fin configuration with only two major muscle masses (adductor/abductor) to the highly complex tetrapod limbs that can have more than 50 muscles15. Accordingly, Extant Phylogenetic Bracketing16, one of the most powerful tools for soft tissue reconstruction, has never been used to study this fins-limbs transition17, despite the fact that the relationships of extant sarcoptergians have long been well established18.…”

mentioning

confidence: 99%

Characteristic tetrapod musculoskeletal limb phenotype emerged more than 400 MYA in basal lobe-finned fishes

Diogo

Johnston

Molnár

et al. 2016

Sci Rep

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Previous accounts of the origin of tetrapod limbs have postulated a relatively sudden change, after the split between extant lobe-finned fish and tetrapods, from a very simple fin phenotype with only two muscles to the highly complex tetrapod condition. The evolutionary changes that led to the muscular anatomy of tetrapod limbs have therefore remained relatively unexplored. We performed dissections, histological sections, and MRI scans of the closest living relatives of tetrapods: coelacanths and lungfish. Combined with previous comparative, developmental and paleontological information, our findings suggest that the characteristic tetrapod musculoskeletal limb phenotype was already present in the Silurian last common ancestor of extant sarcopterygians, with the exception of the autopod (hand/foot) structures, which have no clear correspondence with fish structures. Remarkably, the two major steps in this long process – leading to the ancestral fin anatomy of extant sarcopterygians and limb anatomy of extant tetrapods, respectively – occurred at the same nodes as the two major similarity bottlenecks that led to the striking derived myological similarity between the pectoral and pelvic appendages within each taxon. Our identification of probable homologies between appendicular muscles of sarcopterygian fish and tetrapods will allow more detailed reconstructions of muscle anatomy in early tetrapods and their relatives.

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“…The m. adductor mandibulae is differentiated into different muscle sections in teleost fishes, representing a complex of individual muscles, each having a separated origin, course, and insertion (Diogo, 2008; Diogo & Abdala, 2010). The external section of m. adductor mandibulae complex, A1, is the lateral-most jaw muscle.…”

Section: Resultsmentioning

confidence: 99%

“…The jaw adductors belong to the most intensely studied muscles in vertebrates due to their prominent size and variation in the head and their importance for feeding mechanisms (Haas, 2001; Diogo, 2008; Diogo & Abdala, 2010; Daza et al, 2011; Konstantinidis & Harris, 2011; Werneburg, 2013a; Werneburg, 2013b; Datovo & Vari, 2013; Datovo & Vari, 2014). Among Acanthopterygii, the external section of m. adductor mandibulae (A1) experienced comprehensive diversifications (Wu & Shen, 2004), and among Beloniformes, it can either be present or absent.…”

Section: Discussionmentioning

confidence: 99%

“…The m. adductor mandibulae complex is highly adapted to different feeding strategies among vertebrate clades and, as such, experienced a large amount of diversification. Its anatomy is informative for different phylogenetic levels and a mutual evolution with jaw and skull anatomy can be observed (e.g., Gosline, 1986; Diogo, 2008; Diogo & Abdala, 2010; Datovo & Vari, 2013). …”

Section: Introductionmentioning

confidence: 99%

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Morphology of the jaw, suspensorial, and opercle musculature of Beloniformes and related species (Teleostei: Acanthopterygii), with a special reference to the m. adductor mandibulae complex

Werneburg

2015

PeerJ

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The taxon Beloniformes represents a heterogeneous group of teleost fishes that show an extraordinary diversity of jaw morphology. I present new anatomical descriptions of the jaw musculature in six selected beloniforms and four closely related species. A reduction of the external jaw adductor (A1) and a changed morphology of the intramandibular musculature were found in many Beloniformes. This might be correlated with the progressively reduced mobility of the upper and lower jaw bones. The needlefishes and sauries, which are characterised by extremely elongated and stiffened jaws, show several derived characters, which in combination enable the capture of fish at high velocity. The ricefishes are characterised by several derived and many plesiomorphic characters that make broad scale comparisons difficult. Soft tissue characters are highly diverse among hemiramphids and flying fishes reflecting the uncertainty about their phylogenetic position and interrelationship. The morphological findings presented herein may help to interpret future phylogenetic analyses using cranial musculature in Beloniformes.

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Th e General Natural History of the African Lungfi shes

Cited by 14 publications

References 0 publications

A new heart for a new head in vertebrate cardiopharyngeal evolution

A new heart for a new head in vertebrate cardiopharyngeal evolution

Characteristic tetrapod musculoskeletal limb phenotype emerged more than 400 MYA in basal lobe-finned fishes

Morphology of the jaw, suspensorial, and opercle musculature of Beloniformes and related species (Teleostei: Acanthopterygii), with a special reference to the m. adductor mandibulae complex

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