The effect of toe-clipping on survival in metamorphs of western Palearctic water frogs (Anura, Ranidae)

2001 ◽  
Vol 77 (1) ◽  
pp. 87-90
Author(s):  
Leszek Berger
Keyword(s):  
Water Frogs ◽  
Western Palearctic

scholarly journals Molecular investigations in western palearctic water frogs

2004 ◽  
Vol 71 (sup2) ◽  
pp. 17-23 ◽  
Author(s):  
Matilde Ragghianti ◽  
Stefania Bucci ◽  
Claudio Casola ◽  
Silvia Marracci ◽  
Giorgio Mancino
Keyword(s):  
Water Frogs ◽  
Western Palearctic

scholarly journals New records of the anomaly P syndrome in two water frog species (Pelophylax ridibundus and P. lessonae) in Russia

Herpetozoa ◽  
2019 ◽  
Vol 32 ◽  
pp. 277-281 ◽  
Author(s):  
Anton O. Svinin ◽  
Ivan V. Bashinskiy ◽  
Vitaly V. Osipov ◽  
Leonid A. Neymark ◽  
Alexander Yu. Ivanov ◽  
...  
Keyword(s):  
Hind Limb ◽  
New Records ◽  
Inguinal Region ◽  
Water Frog ◽  
Central Russia ◽  
Water Frogs ◽  
Western Palearctic ◽  
Frog Species ◽  
Jean Rostand ◽  
Anomalies Of Water

The “anomaly P” was described in Palearctic water frogs of the genus Pelophylax by Jean Rostand as complex morphological anomalies of water frogs, including polydactyly, brachymely, hind limb oedema, bone outgrowths, spikes, flexions and additional limbs in the inguinal region. In 2016, the anomaly P syndrome was rediscovered in central Russia, confirming the hypothesis concerning its wider distribution. Here, three new records of this syndrome in two species of western Palearctic water frog from Russia are described.

Some remarks on current research on western Palearctic water frogs

2001 ◽  
Vol 77 (1) ◽  
pp. 3-4
Author(s):  
Jörg Plötner ◽  
Dirk Scmeller
Keyword(s):  
Water Frogs ◽  
Western Palearctic

Rana/Pol III: A family of SINE-like sequences in the genomes of western Palearctic water frogs

Genome ◽  
1999 ◽  
Vol 42 (3) ◽  
pp. 504-511 ◽  
Author(s):  
S Bucci ◽  
M Ragghianti ◽  
G Mancino ◽  
G Petroni ◽  
F Guerrini ◽  
...  
Keyword(s):  
Repeat Unit ◽  
Rana Esculenta ◽  
Green Water ◽  
North African ◽  
Hybrid Form ◽  
Evolutionary Pattern ◽  
The North ◽  
Water Frogs ◽  
Western Palearctic ◽  
Pol Iii

The highly repetitive Rana/Pol III family consists of short, tandemly arrayed sequences, scattered throughout the genomes of Palearctic green water frogs. The repeat unit is about 250 bp in length and is a composite element: it contains a SINE-like retroposon with a tRNA structure, flanked by two short direct repeats, and the occurrence of two internal repeats gives evidence that an additional transposition event may have inserted a segment within the already transposed element. Rana/Pol III family is present in the genomes of Rana lessonae, R. ridibunda, and their hybrid form R. esculenta, as well as in R. shqiperica, R. epeirotica, R. cretensis, and the Italian taxon. These sequences are also present in the Iberian R. perezi, although less abundant, but appear to be lacking in the north African speciesR. saharica. The distribution of Rana/Pol III in the genomes of Palearctic green frogs is in agreement with the phyletic history based on genetic data. The evolutionary pattern proposed for the genus Rana enables us to suppose that the hybridogenetic mechanism is one of the factors accounting for the possible horizontal transfer of Rana/Pol III elements from the central-north Europe species to R. perezi.Key words: repetitive DNA, SINE-like retroposons, hybridogenesis, Rana esculenta group.

Microsatellites: A tool for evolutionary genetic studies of western Palearctic water frogs

2001 ◽  
Vol 77 (1) ◽  
pp. 43-50 ◽  
Author(s):  
Hansjürg Hotz ◽  
Thomas Uzzell ◽  
Gaston-Denis Guex ◽  
Deryn Alpers ◽  
Raymond D. Semlitsch ◽  
...  
Keyword(s):  
Genetic Studies ◽  
Water Frogs ◽  
Western Palearctic ◽  
Evolutionary Genetic

Some remarks on current research on western Palearctic water frogs

2008 ◽  
Vol 77 (1) ◽  
pp. 3-4
Author(s):  
Jörg Plötner ◽  
Dirk Scmeller
Keyword(s):  
Water Frogs ◽  
Western Palearctic

Microsatellites: A tool for evolutionary genetic studies of western Palearctic water frogs

2008 ◽  
Vol 77 (1) ◽  
pp. 43-50 ◽  
Author(s):  
Hansjürg Hotz ◽  
Thomas Uzzell ◽  
Gaston-Denis Guex ◽  
Deryn Alpers ◽  
Raymond D. Semlitsch ◽  
...  
Keyword(s):  
Genetic Studies ◽  
Water Frogs ◽  
Western Palearctic ◽  
Evolutionary Genetic

Immunological Relationship of Western Palearctic Water Frogs (Salientia: Ranidae)

1982 ◽  
Vol 3 (2) ◽  
pp. 135-143 ◽  
Author(s):  
Thomas Uzzell
Keyword(s):  
Dry Period ◽  
Hybrid Form ◽  
Water Frogs ◽  
Western Palearctic ◽  
Hybrid Pair ◽  
Immunological Relationship ◽  
Microcomplement Fixation ◽  
Relationship Of ◽  
Sum Of Distances ◽  
Rana Lessonae

AbstractReciprocal immunological distances between six albumins of five taxa (Rana lessonae, Italian non-hybrids, R. perezi, the slow and fast albumins of R. ridibunda, and a sample possibly representing R. saharica) were determined with microcomplement fixation. The immunological distances determined by each antiserum were scaled so that the sum of distances to each albumin was identical to the sum of distances from that albumin. The scaled reciprocal values were then averaged and used to generate 39 Fitch-Margoliash phenograms. The three lowest percent standard deviations (% SD) for phenograms were 5.7, 8.3 and 8.6; the next lowest was 12.1; eight phenograms had % SD less than 20. The three phenograms with lowest (% SD agreed in grouping (a) the two albumins of Rana ridibunda; (b) Rana lessonae and the Italian non-hybrid; and (c) Rana perezi and R. "saharica ". In the lowest % SD phenogram, the two ridibunda alleles are linked to the R. lessonae-Italian non-hybrid pair; in the next, the two ridibunda albumins were linked first to the R. perezi-R. "saharica" pair; in the third, the R. lessonae-Italian non-hybrid pair was linked first to the R. perezi-R. "saharica" pair. These latter two phenograms include legs of -5.8 and -4.7, respectively. Five triads of data among the 35 possible in the lowest% SD phenogram fail to conform to the triangle inequality; this is associated with the failure of the antiserum to the rapidly migrating ridibunda albumin to distinguish between the two ridibunda albumins. This posed no problem in grouping the albumins. The negative legs in the second and third ranked phenograms are like those generated by the Fitch-Margoliash algorithm when additive data are forced into a tree other than that specified by the additive data. The three lowest % SD phenograms agree with other data suggesting groupings of the taxa represented. They all place the two ridibunda albumins together, and they all group R. lessonae with the I talian non-hybrid form; these latter two share numerous electrophoretic markers. The data suggest a divergence ofwestern Palearctic water frogs from the eastern North American R. catesbeiana ofabout 43 x 106 years ago. R. lessonae and the Italian non-hybrid may have shared a common ancestor with R. ridibunda some 12 x 106 years ago; R. lessonae and the Italian non-hybrids may have diverged as recently as 4 x 106 years ago. The two ridibunda albumins may differ by as little as one amino acid residue. The Iberian R. perezi and saharica may have diverged from the central European cluster about 16 x 166 years ago, and from each other about 6 x 106 years ago; this latter divergence may reflect the refilling of the Mediterranean Sea following a dry period some 7-5.5 x 106 years ago.

Cross-species testing of nuclear markers in Pelophylax water frogs in Greece and examination of their power to detect genetic admixture

2020 ◽  
Vol 41 (2) ◽  
pp. 253-259
Author(s):  
Kostas Sagonas ◽  
Emmanouela Karameta ◽  
Panayiota Kotsakiozi ◽  
Nikos Poulakakis
Keyword(s):  
Model Organism ◽  
Genetic Admixture ◽  
Species Structure ◽  
Significant Linkage Disequilibrium ◽  
Nuclear Markers ◽  
Genetic Studies ◽  
Contact Zones ◽  
Water Frogs ◽  
Western Palearctic ◽  
Significant Linkage

Abstract The genus Pelophylax has been considered a model organism for understanding hybridization. Despite being the most diverse within the Western Palearctic group of Pelophylax, the ridibundus/bedriagae lineage that includes six species, remains largely understudied, revealing many knowledge gaps in regards to their evolution and conservation. Using genetic data from populations among species inhabiting contact zones could prove vital in filling these gaps. We tested 17 microsatellite markers for cross-species amplification in mainland Pelophylax species distributed in southern Balkans and evaluated their power to successfully detect population/species structure. Importantly, we examined their potential for identifying hybrids and backcrosses between known hybridized species. We detected 12 highly polymorphic loci that cross-amplified all species that showed no significant Linkage Disequilibrium and were able to discriminate among species and between parental and hybrids. We suggest their future use in genetic studies for the genus Pelophylax in Greece, including the identification of contact zones.

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