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51 results for “Phrynocephalus”
Figure 10 from: Solovyeva EN, Dunayev EN, Nazarov RA, Radjabizadeh M, Poyarkov Jr NA (2018) Molecular and morphological differentiation of Secret Toad-headed agama, Phrynocephalus mystaceus, with the description of a new subspecies from Iran (Reptilia, Agamidae). ZooKeys 748: 97-129. https://doi.org/10.3897/zookeys.748.20507
Figure 10 ZMMU R-6413, lectotype of Phrynocepahlus mystaceus galli Krassowsky, 1932 in preservative: A dorsal view B ventral view C head in dorsal view D head in frontal view E head in lateral view F left foot in thenar view (photographs by E. N. Solovyeva).
Figure 4 from: Solovyeva EN, Dunayev EN, Nazarov RA, Radjabizadeh M, Poyarkov Jr NA (2018) Molecular and morphological differentiation of Secret Toad-headed agama, Phrynocephalus mystaceus, with the description of a new subspecies from Iran (Reptilia, Agamidae). ZooKeys 748: 97-129. https://doi.org/10.3897/zookeys.748.20507
Figure 4 Statistically significant morphological differences between Ph. mystaceus khorasanus ssp. from Iran and other Ph. mystaceus: A the number of subdigital lamellae on the toe III (SLIII) B the number of subdigital lamellae on the toe IV (SLIV) C the total number of supralabial scales (SL) D the relative length of the dark distal part of the tail to the total tail length (TL-black/TL) E number of flat infralabials anterior to the angular enlarged spine-like infralabial scales (IlbA).
Figure 8 from: Solovyeva EN, Dunayev EN, Nazarov RA, Radjabizadeh M, Poyarkov Jr NA (2018) Molecular and morphological differentiation of Secret Toad-headed agama, Phrynocephalus mystaceus, with the description of a new subspecies from Iran (Reptilia, Agamidae). ZooKeys 748: 97-129. https://doi.org/10.3897/zookeys.748.20507
Figure 8 Paratypes of Ph. mystaceus khorasanus ssp. n. in preservative: A in dorsal view B in ventral view (photographs by E. N. Solovyeva).
Figure 7 from: Solovyeva EN, Dunayev EN, Nazarov RA, Radjabizadeh M, Poyarkov Jr NA (2018) Molecular and morphological differentiation of Secret Toad-headed agama, Phrynocephalus mystaceus, with the description of a new subspecies from Iran (Reptilia, Agamidae). ZooKeys 748: 97-129. https://doi.org/10.3897/zookeys.748.20507
Figure 7 Holotype of Ph. mystaceus khorasanus ssp. n. in preservative: A dorsal view B ventral view C head in dorsal view D head in frontal view E head in lateral view; F right foot in thenar view (photographs by E. N. Solovyeva).
Figure 3 from: Solovyeva EN, Dunayev EN, Nazarov RA, Radjabizadeh M, Poyarkov Jr NA (2018) Molecular and morphological differentiation of Secret Toad-headed agama, Phrynocephalus mystaceus, with the description of a new subspecies from Iran (Reptilia, Agamidae). ZooKeys 748: 97-129. https://doi.org/10.3897/zookeys.748.20507
Figure 3 Statistically significant morphological differences between Ph. mystaceus khorasanus ssp. from Iran and other subspecies of Ph. mystaceus: A the number of subdigital lamellae on the toe IV (SLIV) B the number of enlarged triangular scales on the lateral fringe of the toe III (FrIII) C the total number of supralabial scales (SL) D the relative length of the dark distal part of the tail to the total tail length (TL-black/TL).
Figure 6 from: Solovyeva EN, Dunayev EN, Nazarov RA, Radjabizadeh M, Poyarkov Jr NA (2018) Molecular and morphological differentiation of Secret Toad-headed agama, Phrynocephalus mystaceus, with the description of a new subspecies from Iran (Reptilia, Agamidae). ZooKeys 748: 97-129. https://doi.org/10.3897/zookeys.748.20507
Figure 6 Ph. mystaceus in life: A subadult Ph. mystaceus khorasanus ssp. n., orange lower surface of the tail is shown, Iran (photograph by R. A. Nazarov) B Ph. mystaceus khorasanus ssp. n., female, Iran (photo by R. A. Nazarov) C Ph. m. mystaceus, Russia, Astrakhan region, Dosang (photograph by E. A. Dunayev) D Ph. m. mystaceus, Dagestan, Sarykum sands (photograph by E. A. Dunayev) E Ph. m. mystaceus, Uzbekistan, Qarakalpaqiston (corresponds to the previously recognized subspecies "galli"; photograph by E. A. Dunayev) F Ph. m. mystaceus, Dagestan, Sarykum sands (corresponds to the previously recognized subspecies "dagestanica"; photograph by E. A. Dunayev) G Ph. m. aurantiacocaudatus, E Kazakhstan, SE Balkash Lake (photograph by E. N. Solovyeva) H Ph. m. aurantiacocaudatus, E Kazakhstan, SE Balkash lake (photograph by E. N. Solovyeva) I Ph. m. mystaceus, Russia, Astrakhan region, Dosang (photograph by E. A. Dunayev).
Data from: Comparative transcriptomic analysis revealed adaptation mechanism of Phrynocephalus erythrurus, the highest altitude lizard living in the Qinghai-Tibet Plateau
Background: Organisms living at high altitudes must overcome three major environmental challenges: hypoxia, cold, and intense UV radiation. The molecular mechanisms that enable these challenges to be overcome have mainly been studied in endothermic organisms; relatively little attention has been paid to poikilothermic species. Here, we present deep transcriptome sequencing in two closely related lizards, the high altitude-dwelling Phrynocephalus erythrurus and the lowland-dwelling P. putjatia, to identify candidate genes under positive selection and to explore the convergent evolutionary adaptation of poikilothermic animals to high altitude life. Results: More than 70 million sequence reads were generated for each species via Illumina sequencing. De novo assembly produced 56,845 and 63,140 transcripts for P. erythrurus and P. putjatia, respectively. P. erythrurus had higher Ka/Ks ratios than P. putjatia, implying an accelerated evolutionary rate in the high altitude lizard lineage. 206 gene ontology (GO) categories with accelerated evolutionary rates and 43 candidate positively selected genes were detected along the P. erythrurus lineage. Some of these GO categories have functions associated with responses to hypoxia, energy metabolism and responses to UV damage. We also found that the high-altitude ranid frog R. kukunoris had higher Ka/Ks ratios than the closely related low-altitude frog R. chensinensis, and that the functional categories with accelerated evolutionary rates in R. kukunoris overlapped extensively with those detected along the P. erythrurus lineage. Conclusions: The mechanisms of high altitude adaptation in P. erythrurus were tentatively inferred. By comparing two pairs of low- and high-altitude poikilothermic species, we found that similar functional categories had undergone positive selection in high altitude-dwelling Phrynocephalus and Rana lineages, indicating that similar mechanisms of adaptation to high altitude might have evolved in both genera. Our findings provide important guidance for future functional studies on high altitude adaptation in poikilothermic animals.
Data from: Comparative transcriptomic analysis revealed adaptation mechanism of Phrynocephalus erythrurus, the highest altitude lizard living in the Qinghai-Tibet Plateau
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Population genomics of variegated toad-headed lizard Phrynocephalus versicolor and its adaptation to the colorful sand of the Gobi Desert
GEO Series GSE179069. Phrynocephalus versicolor. 6 samples. Type: Expression profiling by high throughput sequencing.
Figure 5 from: Solovyeva EN, Dunayev EN, Nazarov RA, Radjabizadeh M, Poyarkov Jr NA (2018) Molecular and morphological differentiation of Secret Toad-headed agama, Phrynocephalus mystaceus, with the description of a new subspecies from Iran (Reptilia, Agamidae). ZooKeys 748: 97-129. https://doi.org/10.3897/zookeys.748.20507
Figure 5 Principal Components Analysis (PCA) of 19 morphological traits (excluding SVL and TL).
Revealing the mechanism of high altitude adaptation in poikilotherm: an intraspecific comparative transcriptomic analysis in a toad-headed lizard, Phrynocephalus vlangalii
GEO Series GSE75992. Phrynocephalus vlangalii. 2 samples. Type: Expression profiling by high throughput sequencing.
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