Genetic variability and relationships within the skinks<i>Eumeces algeriensis</i>and<i>Eumeces schneideri</i>using mitochondrial markers

Perera, Ana; Sampaio, Filipa L.; Costa, Sara; Salvi, Daniele; Harris, D. James

doi:10.1080/21564574.2011.583284

Cited by 9 publications

(5 citation statements)

References 35 publications

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“…This type of behavior is also present in other reptiles living in the same biotope of aeolian sand, such as the Kenyan sand boa ( Gongylophis colubrinus ) (Al‐Sadoon & Al‐Otaibi, 2014; Al‐Sadoon, Al‐Otaibi, & Oraby, 2013; Klein et al, 2010), the sepsoid skink ( Chalcides sepsoides ) (Carranza, Arnold, Geniez, Roca, & Mateo, 2008), and the Berber skink ( E . schneideri) (Perera, Sampaio, Costa, Salvi, & Harris, 2012; Warburg, 1978).…”

Section: Discussionmentioning

confidence: 99%

Morphological study of the integument and corporal skeletal muscles of two psammophilous members of Scincidae (Scincus scincus and Eumeces schneideri)

Canei

Nonclercq

2020

Journal of Morphology

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Sand deserts are common biotopes on the earth's surface. Numerous morphological and physiological adaptations have appeared to cope with the peculiar conditions imposed by sandy substrates, such as abrasion, mechanical resistance and the potential low oxygen levels. The psammophilous scincids (Lepidosauria) Scincus scincus and Eumeces schneideri are among those. S . scincus is a species frequently used to study displacement inside a sandy substrate. E . schneideri is a species phylogenetically closely related to S . scincus with a similar lifestyle. The aims of this study focus on the morphology of the integument and the muscular system. Briefly, we describe interspecific differences at the superficial architecture of the scales pattern and the thickness of the integument. We highlight a high cellular turnover rate at the level of the basal germinal layer of the epidermis, which, we suggest, corresponds to an adaptation to cutaneous wear caused by abrasion. We demonstrate the presence of numerous cutaneous holocrine glands whose secretion probably plays a role in the flow of sand along the integument. Several strata of osteoderms strengthen the skin. We characterize the corporal ( M . longissimus dorsi and M . rectus abdominus ) and caudal muscular fibers using immunohistochemistry, and quantify them using morphometry. The musculature exhibits a high proportion of glycolytic fast fibers that allow rapid burying and are well adapted to this mechanically resistant and oxygen‐poor substrate. Oxidative slow fibers are low in abundance, less than 10% in S . scincus , but a little higher in E . schneideri .

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Section: Discussionmentioning

confidence: 99%

Morphological study of the integument and corporal skeletal muscles of two psammophilous members of Scincidae (Scincus scincus and Eumeces schneideri)

Canei

Nonclercq

2020

Journal of Morphology

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“…Additionally, the new species is located at lowlands with lower elevations (1100-1250 m asl) where is desert like habitats are more prominent unlike most of E.schneideri taxa which specified to mountainous and foothills. The genera Scincus and Scincopus strongly supported as being nested within Eumeces s.s (Perera et al, 2012) with phylogenetic affinity of E. algeriensis to Scincopus and E.schneiderii to Scincus. As it clear in Figure 3 the unknown taxon (here Eumeces sp.)…”

Section: Discussionmentioning

confidence: 92%

Molecular phylogeny of the genus Eumeces Wiegmann, 1834 (Reptilia: Scincidae) in Iran, inferred from 16s mitochondrial DNA

Feizi¹,

Heidari²,

Pouyani³

et al. 2016

nbr

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“…By contrast with Southern Europe and the Mediterranean biotypes of North Africa, where numerous studies have been carried out on herpetofauna phylogeographic patterns (e.g. Pinho, Harris and Ferrand, 2007;Rato and Harris, 2008;Perera et al, 2012) few are available for the more desertic regions of North Africa (e.g. Rato et al, 2007;Froufe, Brito and Harris, 2009;Gonçalves et al, 2012).…”

Section: Introductionmentioning

confidence: 96%

Nuclear and mitochondrial markers reveal the existence of several geographically concordant lineages within a Sahelian gecko species, Ptyodactylus ragazzii

Froufe

Gonçãlves²,

Brito³

et al. 2013

Amphib Reptilia

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The genetic diversity within Ptyodactytus ragazzii was analysed for the first time across the Western part of its range. We have used two mitochondrial (12s rRNA and 16s rRNA) and one nuclear (Cmos) marker to compare results directly with other related Ptyodactytus species, P oudrii and P. hassetquislii. Results show high levels of intraspecific variahility, with at least three divergent mtDNA lineages that have different haplotypes for Cmos and that are geographically concordant. R ragazzii from Mauritania is probably a distinct species and possibly other lineages too, such as those from the Air Mountains in Niger, although more nuclear markers are needed to confirm this. All analysed Ptyodactytus species appear to be cryptic species complexes containing multiple deeply divergent forms, highlighting the need for a careful reassessment of the taxonomy of the whole genus.

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Genetic variability and relationships within the skinksEumeces algeriensisandEumeces schneideriusing mitochondrial markers

Cited by 9 publications

References 35 publications

Morphological study of the integument and corporal skeletal muscles of two psammophilous members of Scincidae (Scincus scincus and Eumeces schneideri)

Morphological study of the integument and corporal skeletal muscles of two psammophilous members of Scincidae (Scincus scincus and Eumeces schneideri)

Molecular phylogeny of the genus Eumeces Wiegmann, 1834 (Reptilia: Scincidae) in Iran, inferred from 16s mitochondrial DNA

Nuclear and mitochondrial markers reveal the existence of several geographically concordant lineages within a Sahelian gecko species, Ptyodactylus ragazzii

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