Multilocus phylogeny and statistical biogeography clarify the evolutionary history of major lineages of turtles

Pereira, Anieli Guirro; Sterli, Juliana; Moreira, Filipe Romero Rebello; Schrago, Carlos G.

doi:10.1016/j.ympev.2017.05.008

Cited by 144 publications

(264 citation statements)

References 87 publications

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“…These changes would pose no problem from a temporal point of view, as this clade has existed since the Oligocene, and the clade of Mauremys caspica (the sister group of the extinct clade herein) since the beginning of the Miocene, based on a recent molecular clock estimate (Pereira et al . ). Therefore, the existence of this clade would be corroborated from a chronostratigraphic point of view.…”

Section: Discussionmentioning

confidence: 97%

“…We analysed the data in a total evidence analysis using the molecular matrix of Pereira et al . (). The matrices were constructed in Mesquite v. 3.2 (Maddison & Maddison ).…”

Section: Methodsmentioning

confidence: 97%

“…Additionally, we conducted a total evidence parsimony analysis based on the combination of recently published matrices (morphology: Vlachos & Rabi ; molecules: Pereira et al . ) to test the generic attribution of the new species and its possible relationship with M. campanii from the late Miocene of Italy.…”

Section: Institutional Abbreviationmentioning

confidence: 99%

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A new species of Mauremys (Testudines, Geoemydidae) from the late Miocene – Pliocene of Central Macedonia (northern Greece) with exceptionally wide vertebral scutes

Vlachos

Sterli

Vasileiadou³

et al. 2018

Papers in Palaeontology

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Our knowledge of Neogene chelonian diversity in northern Greece is increased with the present description of a new species of Mauremys (Testudines, Geoemydidae) from the late Miocene to Pliocene of three localities in central Macedonia (Gefira‐2, Nea Silata, Allatini). This new species, Mauremys aristotelica sp. nov., is characterized by the presence of exceptionally wide vertebral scutes, a trait that is quite rare within Mauremys but has evolved independently in other pan‐testudinoid non‐testudinids. Total evidence phylogenetic analysis confirms the placement of the new species within Mauremys and reveals that its closest relative is Mauremys campanii from the late Miocene of Italy. It is also likely, under parsimony, that all geoemydids with similarly wide vertebral scutes from the Neogene of Eurasia form a clade nested within Mauremys. Our results also shed light on the evolution of geoemydids in the eastern Mediterranean during late Miocene to Pliocene times.

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Section: Discussionmentioning

confidence: 97%

“…We analysed the data in a total evidence analysis using the molecular matrix of Pereira et al . (). The matrices were constructed in Mesquite v. 3.2 (Maddison & Maddison ).…”

Section: Methodsmentioning

confidence: 97%

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A new species of Mauremys (Testudines, Geoemydidae) from the late Miocene – Pliocene of Central Macedonia (northern Greece) with exceptionally wide vertebral scutes

Vlachos

Sterli

Vasileiadou³

et al. 2018

Papers in Palaeontology

Self Cite

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“…Our sample was selected to represent all major clades of extant turtles and to maximize size variation (it includes skulls with lengths ranging from 16 mm in Emydura subglobosa to 219 mm in Dermochelys coriacea), independent evolutionary transitions between habitat preferences (i.e. freshwater, marine and terrestrial), and locomotor modes as indicated by current phylogenies Pereira et al 2017). The airfilled middle ear cavity and the temporal region of the skull were segmented using AMIRA 6.0.0 (Zuse Institute Berlin and FEI Visualization Sciences Group) and MIMICS 16.0 (Materialise HQ) and models were exported as surface models in.ply-format.…”

Section: Sampling and Ct Scanningmentioning

confidence: 99%

Comparative analysis of the shape and size of the middle ear cavity of turtles reveals no correlation with habitat ecology

et al. 2019

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The middle ear of turtles differs from other reptiles in being separated into two distinct compartments. Several ideas have been proposed as to why the middle ear is compartmentalized in turtles, most suggesting a relationship with underwater hearing. Extant turtle species span fully marine to strictly terrestrial habitats, and ecomorphological hypotheses of turtle hearing predict that this should correlate with variation in the structure of the middle ear due to differences in the fluid properties of water and air. We investigate the shape and size of the air-filled middle ear cavity of 56 extant turtles using 3D data and phylogenetic comparative analysis to test for correlations between habitat preferences and the shape and size of the middle ear cavity. Only weak correlations are found between middle ear cavity size and ecology, with aquatic taxa having proportionally smaller cavity volumes. The middle ear cavity of turtles exhibits high shape diversity among species, but we found no relationship between this shape variation and ecology. Surprisingly, the estimated acoustic transformer ratio, a key functional parameter of impedance-matching ears in vertebrates, also shows no relation to habitat preferences (aquatic/terrestrial) in turtles. We suggest that middle ear cavity shape may be controlled by factors unrelated to hearing, such as the spatial demands of surrounding cranial structures. A review of the fossil record suggests that the modern turtle ear evolved during the Early to Middle Jurassic in stem turtles broadly adapted to freshwater and terrestrial settings. This, combined with our finding that evolutionary transitions between habitats caused only weak evolutionary changes in middle ear structure, suggests that tympanic hearing in turtles evolved as a compromise between subaerial and underwater hearing.

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“…Bieser & Wibbels, ; Kaplinsky et al, ; Radhakrishnan, Literman, Neuwald, Severin, & Valenzuela, ; Shoemaker, Ramsey, Queen, & Crews, ). Further, this species and C. serpentina (the only other turtle in which yolk processing has been studied [Blackburn et al, ]) belong to distantly related cryptodiran lineages (Crawford et al, ; Pereira, Sterli, Moreira, & Schrago, ), meaning that shared developmental features may well characterize the Cryptodira, if not chelonians in general. Our study tests the hypothesis that the squamate pattern of yolk processing is shared by chelonians and is therefore likely to be ancestral for reptiles.…”

Section: Introductionmentioning

confidence: 99%

Ultrastructural analysis of the yolk processing pattern in embryonic pond slider turtles (Trachemys scripta: Emydidae)

et al. 2019

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Evolution of the large‐yolked, amniotic egg required mechanisms by which extracellular yolk could be made available for embryonic development. In birds, the endodermal lining of the yolk sac absorbs and digests the yolk. In contrast, recent studies on lizards and snakes (squamates) have revealed that yolk is processed by means of a proliferating mass of “spaghetti‐like” strands formed by endodermal cells attached to anastomosing blood vessels. To clarify the method of yolk processing in chelonians, we applied electron microscopy to an extensive series of embryos of the pond slider turtle, Trachemys scripta. Our findings demonstrate that proliferating endodermal cells phagocytose yolk spheres. These cells remain attached to one another following mitosis, thereby forming clumps that progressively occupy the yolk sac cavity. Upon invasion of blood vessels, the cells become organized into elongated, vascularized “spaghetti‐like” strands of cells like those found in squamates. Residual yolk found in the body cavity of new hatchlings chiefly consists of these vascularized strands. Such strands of cells also develop in the false map turtle, Graptemys pseudographica (Emydidae). We infer that the developmental pattern by which yolk is processed is ancestral for both Chelonia and Reptilia, and therefore must have been modified or abandoned in birds or their archosaur ancestors.

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Multilocus phylogeny and statistical biogeography clarify the evolutionary history of major lineages of turtles

Cited by 144 publications

References 87 publications

A new species of Mauremys (Testudines, Geoemydidae) from the late Miocene – Pliocene of Central Macedonia (northern Greece) with exceptionally wide vertebral scutes

A new species of Mauremys (Testudines, Geoemydidae) from the late Miocene – Pliocene of Central Macedonia (northern Greece) with exceptionally wide vertebral scutes

Comparative analysis of the shape and size of the middle ear cavity of turtles reveals no correlation with habitat ecology

Ultrastructural analysis of the yolk processing pattern in embryonic pond slider turtles (Trachemys scripta: Emydidae)

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