Peer Review #1 of "Morphology and ontogeny of carpus and tarsus in stereospondylomorph temnospondyls (v0.1)" DOI Creative Commons

David W. Dilkes

Опубликована: Окт. 26, 2023

Skeletal development is well known in temnospondyls, the most diverse group of Paleozoic and Mesozoic amphibians.However, elements carpus tarsus (i.e. mesopodium) were always last bones to ossify relative other limb with regard rest skeleton, are preserved only rare cases.Thus, contrast parts little about ontogeny sequence ossification temnospondyl tarsus.We intended close this gap by studying ontogenies a number Permo/Carboniferous stereospondylomorphs, temnospondyls growth series which successive carpals tarsals can be traced.Studying degree mesopodial within same species show that it not necessarily correlated body size.This indicates individual age rather than size determined stereospondylomorphs largest individuals oldest ones.In stereospondylomorph tarsus, distal preaxial accordance early tetrapods salamanders.However, more proximal mesopodials exhibit postaxial dominance, i.e. column (tibiale, centrale 1) consistently started after central (centralia 2-4, intermedium) (fibulare).Likewise, we observed carpus, as for statement made.However, formed development, (radiale, ossified before (ulnare).This pattern unique among occurs certain extant salamanders.Furthermore, proceeded from whereas advanced tarsus.Despite these differences, general proximolateral

Язык: Английский

The salamander limb: a perfect model to understand imperfect integration during skeletal regeneration DOI Creative Commons
Camilo Riquelme‐Guzmán, Tatiana Sandoval‐Guzmán

Biology Open, Год журнала: 2024, Номер 13(2)

Опубликована: Фев. 6, 2024

ABSTRACT Limb regeneration in salamanders is achieved by a complex coordination of various biological processes and requires the proper integration new tissue with old. Among tissues found inside limb, skeleton most prominent component, which serves as scaffold provides support for locomotion animal. Throughout years, researchers have studied appendicular both after limb amputation result fracture healing. The final outcome has been widely seen faithful re-establishment skeletal elements, characterised seamless into mature tissue. process integration, however, not well understood, several works recently provided evidence commonly occurring flawed regenerates. In this Review, we take reader on journey through course bone formation salamanders, laying down foundation critically examining mechanisms behind integration. Integration phenomenon that could be influenced at steps regeneration, hence, assess current knowledge field discuss how early events, such histolysis patterning, influence skeleton.

Язык: Английский

Процитировано

3
Anatomy of the Critically‐Endangered Anji Salamander (Hynobius amjiensis) Provides New Insights Into Morphological Evolution of Salamanders DOI Creative Commons

Cangsong Chen,

Jia Jia,

Xiuli Wang

и другие.

Journal of Morphology, Год журнала: 2025, Номер 286(2)

Опубликована: Янв. 29, 2025

ABSTRACT The Anji Salamander ( Hynobius amjiensis ) is a critically‐endangered amphibian endemic to the Tianmushan Mountain area in southeastern China. As most of its congeneric species ancestral salamander family Hynobiidae, osteology H . has remained essentially unknown and hampered efforts understanding morphological evolutionary patterns early salamanders. Here, we investigate skeletal anatomy based on microcomputed tomography scans post‐metamorphosed juvenile adult specimens. Our results reveal Hynobiidae more early‐tetrapod‐like plesiomorphic characters than expected, as stapedial foramen middle ear two centralia centrale‐radius contact limb. We demonstrate that first known living with whose absence was believed unite salamanders anurans, hence opens major questions evolution modern amphibians: if some caecilians had inherited from their common ancestor, when how many times lost independently amphibians, did this structural loss impact phylogenetic clades? findings hyper‐ossified pectoral pelvic girdles postminimus pes functional features hynobiids are potentially informative phylogeny ontogeny

Язык: Английский

Процитировано

0
Morphology and ontogeny of carpus and tarsus in stereospondylomorph temnospondyls DOI Creative Commons
Florian Witzmann, Nadia B. Fröbisch

PeerJ, Год журнала: 2023, Номер 11, С. e16182 - e16182

Опубликована: Окт. 26, 2023

Skeletal development is well known in temnospondyls, the most diverse group of Paleozoic and Mesozoic amphibians. However, elements carpus tarsus (i.e., mesopodium) were always last bones to ossify relative other limb with regard rest skeleton, are preserved only rare cases. Thus, contrast parts little about ontogeny sequence ossification temnospondyl tarsus. We intended close this gap by studying ontogenies a number Permo/Carboniferous stereospondylomorphs, temnospondyls growth series which successive carpals tarsals can be traced. Studying degree mesopodial within same species show that it not necessarily correlated body size. This indicates individual age rather than size determined stereospondylomorphs largest individuals oldest ones. In stereospondylomorph tarsus, distal preaxial accordance early tetrapods salamanders. more proximal mesopodials exhibit postaxial dominance, i.e., column (tibiale, centrale 1) consistently started after central (centralia 2-4, intermedium) (fibulare). Likewise, we observed carpus, as for statement made. formed development, (radiale, ossified before (ulnare). pattern unique among occurs certain extant Furthermore, proceeded from whereas advanced Despite these differences, general proximolateral (intermedium or 4) mediodistal (distal tarsal carpal roughly diagonal line common all investigated. might basically reflect alignment stress mesopodium during locomotion. Our observations point greater variability probably tetrapods, possibly mirroring similar variation seen phases skeletogenesis salamander

Язык: Английский

Процитировано

1
Evolutionary novelty in chemical signalling is linked with chemosensory behaviour in close Liolaemus lizard species (Iguania: Liolaemidae) DOI Open Access
Mario R. Ruiz‐Monachesi, Soledad Valdecantos,

R. Gamarra‐Nallar

и другие.

Journal of Zoology, Год журнала: 2024, Номер 324(3), С. 253 - 266

Опубликована: Авг. 19, 2024

Abstract Evolutionary changes, associated with the gain or loss of traits, can occur in signal‐emitting and signal‐detecting organs. Related functionality generally accompanies these changes; however, some cases there are mismatches evolutionary innovations do not show an indication functional advantages. Due to this, relationship between changes sensory organs remains unclear. Lizard species belonging Liolaemus lineomaculatus section present fast state transitions precloacal pores (chemical signalling glands). In this group, configuration includes where only males have ( attenboroughi ‐ancestral state), both sexes lack them L. kolengh male‐loss), zullyae , representing a female‐gain). Here, we test relationships glands different chemical visual behaviours. We conducted behavioural trials three section: . measured individuals' responses social scents conspecific stimuli. Results showed presence recognition ability male‐only female‐gain species, whereas male‐loss no differences among trials. Lizards exhibited few trials, although used chemo‐sensorial sense while displays These results suggest link novelties secretory recognition.

Язык: Английский

Процитировано

0
Peer Review #3 of "Morphology and ontogeny of carpus and tarsus in stereospondylomorph temnospondyls (v0.1)" DOI Creative Commons
Florian Witzmann, Nadia B. Fröbisch

Опубликована: Окт. 26, 2023

Skeletal development is well known in temnospondyls, the most diverse group of Paleozoic and Mesozoic amphibians.However, elements carpus tarsus (i.e. mesopodium) were always last bones to ossify relative other limb with regard rest skeleton, are preserved only rare cases.Thus, contrast parts little about ontogeny sequence ossification temnospondyl tarsus.We intended close this gap by studying ontogenies a number Permo/Carboniferous stereospondylomorphs, temnospondyls growth series which successive carpals tarsals can be traced.Studying degree mesopodial within same species show that it not necessarily correlated body size.This indicates individual age rather than size determined stereospondylomorphs largest individuals oldest ones.In stereospondylomorph tarsus, distal preaxial accordance early tetrapods salamanders.However, more proximal mesopodials exhibit postaxial dominance, i.e. column (tibiale, centrale 1) consistently started after central (centralia 2-4, intermedium) (fibulare).Likewise, we observed carpus, as for statement made.However, formed development, (radiale, ossified before (ulnare).This pattern unique among occurs certain extant salamanders.Furthermore, proceeded from whereas advanced tarsus.Despite these differences, general proximolateral

Язык: Английский

Процитировано

0
Peer Review #2 of "Morphology and ontogeny of carpus and tarsus in stereospondylomorph temnospondyls (v0.1)" DOI Creative Commons
Florian Witzmann, Nadia B. Fröbisch

Опубликована: Окт. 26, 2023

Skeletal development is well known in temnospondyls, the most diverse group of Paleozoic and Mesozoic amphibians.However, elements carpus tarsus (i.e. mesopodium) were always last bones to ossify relative other limb with regard rest skeleton, are preserved only rare cases.Thus, contrast parts little about ontogeny sequence ossification temnospondyl tarsus.We intended close this gap by studying ontogenies a number Permo/Carboniferous stereospondylomorphs, temnospondyls growth series which successive carpals tarsals can be traced.Studying degree mesopodial within same species show that it not necessarily correlated body size.This indicates individual age rather than size determined stereospondylomorphs largest individuals oldest ones.In stereospondylomorph tarsus, distal preaxial accordance early tetrapods salamanders.However, more proximal mesopodials exhibit postaxial dominance, i.e. column (tibiale, centrale 1) consistently started after central (centralia 2-4, intermedium) (fibulare).Likewise, we observed carpus, as for statement made.However, formed development, (radiale, ossified before (ulnare).This pattern unique among occurs certain extant salamanders.Furthermore, proceeded from whereas advanced tarsus.Despite these differences, general proximolateral

Язык: Английский

Процитировано

0
Peer Review #1 of "Morphology and ontogeny of carpus and tarsus in stereospondylomorph temnospondyls (v0.1)" DOI Creative Commons

David W. Dilkes

Опубликована: Окт. 26, 2023

Skeletal development is well known in temnospondyls, the most diverse group of Paleozoic and Mesozoic amphibians.However, elements carpus tarsus (i.e. mesopodium) were always last bones to ossify relative other limb with regard rest skeleton, are preserved only rare cases.Thus, contrast parts little about ontogeny sequence ossification temnospondyl tarsus.We intended close this gap by studying ontogenies a number Permo/Carboniferous stereospondylomorphs, temnospondyls growth series which successive carpals tarsals can be traced.Studying degree mesopodial within same species show that it not necessarily correlated body size.This indicates individual age rather than size determined stereospondylomorphs largest individuals oldest ones.In stereospondylomorph tarsus, distal preaxial accordance early tetrapods salamanders.However, more proximal mesopodials exhibit postaxial dominance, i.e. column (tibiale, centrale 1) consistently started after central (centralia 2-4, intermedium) (fibulare).Likewise, we observed carpus, as for statement made.However, formed development, (radiale, ossified before (ulnare).This pattern unique among occurs certain extant salamanders.Furthermore, proceeded from whereas advanced tarsus.Despite these differences, general proximolateral

Язык: Английский

Процитировано

0