Ossification and development of vertebrae in the Balkan crested newt Triturus ivanbureschi (Salamandridae, Caudata)

Slijepčević, Maja; Ukropina, Mirela; Filipović, Branko; Ivanović, Ana

doi:10.1016/j.zool.2017.10.001

Cited by 4 publications

(5 citation statements)

References 32 publications

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“…This would be in agreement with the findings of Lleras-Forero et al, which showed potential interaction between the notochord and somites, reinforcing the pattern of the forming vertebral components. Work in ‘indirect’ developing salamanders and ‘direct’ developing fish give support to this proposition ( Figure 1B ; Slijepčević et al, 2018 ; Woltering et al, 2018 ). By this model, the early formation of the mineralized, segmented notochord in zebrafish may dissociate, or even expose, these two patterning mechanisms.…”

mentioning

confidence: 70%

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Patterning the spine

Harris

Arratia

2018

eLife

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mentioning

confidence: 70%

“…(5) In tetrapod vertebrates, in which the influence of the notochord is reduced or masked, the vertebrae arise from somites, and cartilage-derived tissue forms an arcocentrum (light blue). (6) Indirectly developing tetrapods, such as some salamanders, can have both mixed mineralized perichordal tissue and arcocentra (e.g., Slijepčević et al, 2018 ).…”

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confidence: 99%

Patterning the spine

Harris

Arratia

2018

eLife

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“…Thus, a bony centrum ossifies directly via membranous ossification in the vicinity of the notochord (perichordal centrum formation). The vertebral development of salamanders resembles that observed in caecilians as in both, only small parts of the vertebrae are preformed in cartilage (Wake & Lawson, ; Slijepčević et al ., ). The vertebral centrum ossifies as a cylinder which expands at each end around the perichordal rings.…”

Section: Discussionmentioning

confidence: 97%

“…Salamanders and caecilians, on the contrary, display a derived ossification sequence in which the vertebral centra ossify prior to the neural arches. Interestingly, both groups are characterized by a mainly direct ossification of the vertebral centra (Lawson, 1966;Wake & Lawson, 1973;Wake & Wake, 2000;Slijep cevi c et al, 2017). The retention of the presumed ancestral vertebral development mode in frogs is somewhat surprising considering the drastic morphological changes that occur during the transition from larva to adult (i.e.…”

Section: Ossification Sequencementioning

confidence: 99%

How informative is vertebral development for the origin of lissamphibians?

et al. 2019

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The origin of lissamphibians remains unresolved and different origins within Paleozoic early tetrapods have been proposed. Both the vertebral morphology as well as the ossification sequence of the vertebrae are potentially important character traits to test these different hypotheses. Here, we aim to determine if vertebral formation and ossification sequence in lissamphibians and early tetrapods are valuable indicatives of phylogenetic relationships. To answer this question, we examined the vertebral development in growth series of different salamander taxa and compared the results with literature data on vertebral development in frogs, caecilians and early tetrapods. In salamanders, caecilians and early tetrapods, the vertebral centrum develops by chordacentral and perichordal centrum formation, whereas in frogs, no chordacentral centrum formation has been observed so far. In the salamander taxa studied here, the following chondrification and ossification sequences are observed: chondrification first of the neural arches and then of the centra followed by ossification first of the centra and then of the neural arches. In frogs, in contrast, the neural arches ossify prior to the centra and it can be assumed that this developmental sequence represents the ancestral condition for tetrapods, as it characterizes some stem‐tetrapods and all temnospondyls from which growth series are known. However, the ossification sequence of the vertebral column is only incompletely known in stem‐amniotes which makes a comparison with extant lissamphibians difficult. This indicates that the mode of centrum formation and the ossification sequence are highly variable and cannot be used to determine the origin of lissamphibians within early tetrapods.

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“…Нами не обнаружено морфологических признаков участия хорды и окружающей ее соединительной ткани в окостенении тела позвонка, хотя перихордальный остеогенез имеет место у некоторых позвоночных животных [41].…”

Section: материал и методыunclassified

Histological study of human fetuses vertebral column ossification.

Kabak¹,

Zatochnaya²,

Melnichenko³

et al. 2019

Morphologia

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study of human fetuses vertebral column ossification. Belarusian state medical University, Minsk, Republic of Belarus, Republican Scientific and Practical Centre for Traumatology and Orthopedics, Minsk, Republic of Belarus ABSTRACT. Background. The study of normal embryonic development of the vertebral column is important for understanding the pathogenesis of congenital anomalies of the axial skeleton. Objective. To study the histodifferentiation of cartilage and bone tissue in the vertebral centra and neural arches of particular parts of the vertebral column in human embryos of the first half of fetal development. Methods. Whole-mount skeletal preparations, stained with alcian blue and alizarin red, as well as serial histological sections from the embryological collections of the Belarusian State Medical University and from the Carnegie collection (3D Atlas of Human Embryology project, https://www.ehd.org/virtual-human-embryo/) using hematoxylin and eosin and Masson's trichrome staining were studied. A total of 37 human embryos/fetuses from 5 to 20 weeks of age were used. Results. "Primary" centers of ossification were found in the neural arches of the upper cervical and centra of lower thoracic and upper lumbar vertebrae of 9-10-week human embryos. They consist of hypertrophic chondrocytes surrounded by a mineralized matrix. Complete ossification of the cartilaginous anlages of the vertebral bodies begins at 12 week of embryogenesis. The appearance of the osteoid and structural elements of the bone marrow in their centers is preceded by the ingrowth of vascular canаls. In the vertebral neural arches, the formation of bone tissue occurs due to endochondral and perichondral ossification. Three growth zones are formed near the ossification centerone is for the region of the pedicle of the neural arch; the other for the lamina/spinous process; the thirdfor the base of the transverse process. Conclusion. According to the histological structure, the ossification of the vertebral body is similar to the "secondary" ossification center of long bone, and the ossification center in the neural arch at the microscopic level resembles the diaphyseal ossification center of the long bone. Differences in the timing of appearance and osteogenic pathways of the vertebral centra and neural arches are determined by different sources of their origin.

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Ossification and development of vertebrae in the Balkan crested newt Triturus ivanbureschi (Salamandridae, Caudata)

Cited by 4 publications

References 32 publications

Patterning the spine

Patterning the spine

How informative is vertebral development for the origin of lissamphibians?

Histological study of human fetuses vertebral column ossification.

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