| extensive morphological convergence and rapid radiation in the evolutionary history of the family geoemydidae (old world pond turtles) revealed by sine insertion analysis. | the family geoemydidae is one of three in the superfamily testudinoidea and is the most diversified family of extant turtle species. the phylogenetic relationships in this family and among related families have been vigorously investigated from both morphological and molecular viewpoints. the evolutionary history of geoemydidae, however, remains controversial. therefore, to elucidate the phylogenetic relationships of geoemydidae and related species, we applied the sine insertion method to invest ... | 2006 | 17345673 |
| multilocus sequence typing analysis of pseudomonas aeruginosa isolated from pet chinese stripe-necked turtles (ocadia sinensis). | our research sought to characterize the phylogeny of pseudomonas aeruginosa isolated from pet chinese stripe-necked turtles (ocadia sinensis) to better understand its evolutionary relation to other isolates and increase understanding of a potential zoonotic pathogen transmitted through direct contact with pet turtles. thirty-one pseudomonas aeruginosa isolates were obtained from both immature and adult turtles sold in pet shops in korea. to characterize the phylogenic position of chinese stripe- ... | 2016 | 28053614 |
| thermoregulatory behavior is widespread in the embryos of reptiles and birds. | recent studies have demonstrated that thermoregulatory behavior occurs not only in posthatching turtles but also in turtles prior to hatching. does thermoregulatory behavior also occur in the embryos of other reptile and bird species? our experiments show that such behavior is widespread but not universal in reptile and bird embryos. we recorded repositioning within the egg, in response to thermal gradients, in the embryos of three species of snakes (xenochrophis piscator, elaphe bimaculata, and ... | 2014 | 24561606 |
| [identification of turtle shell, tortoise plastron and their counterfeit products]. | to identify the commercial chinese medicines turtle shell and tortoise plastron. | 2000 | 12512444 |
| comparison of complete mitochondrial dna control regions among five asian freshwater turtle species and their phylogenetic relationships. | the complete mitochondrial dna (mtdna) control regions (cr), cytochrome b (cyt b), nadh dehydrogenase subunit 4 (nd4) and cytochrome coxidase subunit i (co i) genes of four asian freshwater turtles, mauremys japonica, ocadia sinensis, m. mutica, and annamemys annamensis, were sequenced using universal pcr and long-pcr techniques. combined with cr sequences of chinemys reevesii, the composition and structure of cr of the five species were compared and analyzed. three functional domains (tas, cd a ... | 2011 | 21863550 |
| hierarchical structure and mechanical properties of snake (naja atra) and turtle (ocadia sinensis) eggshells. | after hundreds of million years of evolution, natural armors have evolved in various organisms, and has manifested in diverse forms such as eggshells, abalone shells, alligator osteoderms, turtle shells, and fish scales. eggshells serve as multifunctional shields for successful embryogenesis, such as protection, moisture control and thermal regulation. unlike calcareous avian eggshells which are brittle and hard, reptilians have leathery eggshells that are tough and flexible. reptilian eggshells ... | 2016 | 26607769 |
| the complete mitochondrial genome of mauremys sinensis (testudines: geoemydidae). | the complete mitochondrial genome of mauremys sinensis (testudines: geoemydidae) is sequenced in the study. it is a circular molecule of 16,458 bp in length, consisting of 37 genes typically found in other turtles. the at content of the overall base composition of m. sinensis is 60.2%. the length of control region is 928 bp with 66.1% at content. an insertion of additional adenine base was observed in location of 175th base of nd3 gene. protein-coding genes begin with atg as start codon except c ... | 2013 | 23379470 |
| morphologic and cytochemical characteristics of chinese striped-necked [corrected] turtle (ocadia sinensis) blood cells and their hematologic and plasma biochemical reference values. | hematologic analyses are useful for the monitoring of animal health and diseases and for the differentiation of physiologic processes for clinicians and conservationists. in order to establish hematology reference values for the chinese striped-necked [corrected] turtle (ocadia sinensis) and to produce an accurate baseline of clinical laboratory data for o. sinensis with regard to sex and season, 50 (24 males and 26 females) adult captive individuals of o. sinensis were studied. blood samples fr ... | 2009 | 19368243 |
| metabolic response to feeding in the chinese striped-necked turtle, ocadia sinensis. | we measured oxygen consumption in juvenile chinese striped-necked turtles (ocadia sinensis) after they ingested food, either as a single meal or as double meals, to examine the influence of meal type and feeding frequency on specific dynamic action (sda). temporal variation in oxygen consumption after feeding was evident in the ingesting turtles but not in the unfed control turtles. in the single-meal experiment, the peak metabolic rate and the integrated sda response (the whole energetic cost f ... | 2005 | 16095937 |
| evolutionary conservation of transferrin genomic organization and expression characterization in seven freshwater turtles. | serum transferrin (tf), encoding an iron-binding glycoprotein, has been revealed to play important roles in iron transportation and immune response, and it also has been demonstrated to be valuable for phylogenetic analysis in vertebrates. however, the evolutionary conservation, expression profiles and positive selection of transferrin genes among freshwater turtle species remain largely unclear. here, the genomic dna and coding sequences of transferrin genes were cloned and characterized in sev ... | 2018 | 30392910 |
| effects of ammonia exposure on antioxidant function, immune response and nf-κb pathway in chinese strip-necked turtle (mauremys sinensis). | as one of the main toxic substances in aquaculture water, ammonia causes seriously physiological harm to aquatic animals. in order to investigate the effects of ammonia exposure on the antioxidant defense, immune response, and nf-κb signaling pathway in chinese strip-necked turtle (mauremys sinensis), we designed two experimental groups (control and 6.45 mm ammonia), and sampled at 6 h, 24 h, 48 h, re 24 h (recover 24 h), and re 48 h. the results showed that the blood ammonia (ba) content was si ... | 2020 | 33129562 |