| peptidomic analysis of the host-defense peptides in skin secretions of rana graeca provides insight into phylogenetic relationships among eurasian rana species. | peptidomic analysis of norepinephrine-stimulated skin secretions from the greek stream frog rana graeca boulenger, 1891 led to the identification and structural characterization of a range of host-defense peptides. these comprised brevinin-1gra, brevinin-1grb and an n-terminally extended form of brevinin-1grb, ranatuerin-2gr together with its oxidized form and (11-28) fragment, temporin-gra, temporin-grb and its non-amidated form, and a melittin-related peptide, mrp-gr and its (1-18) fragment. t ... | 2019 | 30599276 |
| cloning and preliminary characterization of two satellite-like dna sequences from the brown frog rana graeca. | two repetitive dna sequences of about 0.29 kb and 0.39 kb have been isolated from rana graeca genomic dna by digestion with asp718i and have been cloned in ptz18r. hybridization data obtained with dna probes derived from these clones indicate that: i) both sequences are highly repetitive and species-specific; ii) the two sequences are partially homologous; iii) the 0.29 kb sequence is present in the frog genome with the typical tandem organization of satellite dna; iv) the 0.39 kb sequence is pr ... | 2006 | 7893478 |
| s1 satellite dna as a taxonomic marker in brown frogs: molecular evidence that rana graeca graeca and rana graeca italica are different species. | the brown frog rana graeca was believed to be present in two areas, the balkan peninsula and the italian apennines. we have characterised the s1 satellite dna family from rana graeca graeca and compared it with that of rana graeca italica. on southern blots, the patterns of s1 satellite dna bands are very different between italian and greek specimens, but homogeneous among various populations of the same taxon. the satellite dna from the greek taxon contains two repetitive units (s1a (494 bp) an ... | 2002 | 11908670 |
| a family of centromeric satellite dnas from the european brown frog rana graeca italica. | digestion of rana graeca italica dna with asp 718i produces highly repetitive fragments of 281 and 385 bp that were cloned and sequenced. the shorter fragment corresponds to the unit repeat (rgis1b) of a satellite dna. the longer fragment was found to be part of a 494-bp repeat of another satellite dna (rgis1a) that was cloned intact as an ecorv fragment. rgis1b is 97% homologous to rgis1a, from which it seems to be derived by a single deletion. among all species tested, only the related brown f ... | 1997 | 9352650 |
| climatic oscillations triggered post-messinian speciation of western palearctic brown frogs (amphibia, ranidae). | oscillating glacial cycles over the past 2.4 million years are proposed to have had a major impact on the diversity of contemporary species communities. we used mitochondrial and nuclear dna sequence data to infer phylogenetic relationships within western palearctic brown frogs and to test the influence of pliocene and pleistocene climatic changes on their evolution. we sequenced 1976bp of the mitochondrial genes 16s rrna and cytochrome b and of the nuclear rhodopsin gene for all current species ... | 2003 | 12565039 |
| an experimental study on the structures involved in the metabolism of calcium in larvae of rana graeca and rana esculenta: parathyroids, ultimobranchial bodies, thymus, endolymendolymphatic sacs. | | 2015 | 4546722 |
| histochemical studies on the tongue of anuran amphibians--ii. comparative morphochemical study of the taste buds and the lingual glands in bufo viridis laurenti and rana graeca boulenger with particular reference to the mucosaccharide histochemistry. | | 1977 | 147738 |
| [the size of non-helical regions in collagen i from the skin of cold-blooded animals]. | the portion of non-spiralized peptide chain in collagen 1 molecules from the skin of cold-blooded animals, such as arenicola marina, gadus morhua marisalbi, eleginus navaga, rana amurensis, rana temporaria, rana semiplicata, rana ridibunda, rana dolmatina, rana graeca, bombina variegata was determined by recombination-kinetic method. it has been shown that the portion of non-spirilized part of collagen i molecule changes in the animals studied from 2 to 11% and correlates with the temperature of ... | 2008 | 2847808 |