Molecular Systematics and Phylogeny of Old and New World Ratsnakes, Elaphe Auct., and Related Genera (Reptilia, Squamata, Colubridae)

@article{Utiger2002MolecularSA,
  title={Molecular Systematics and Phylogeny of Old and New World Ratsnakes, Elaphe Auct., and Related Genera (Reptilia, Squamata, Colubridae)},
  author={Urs Utiger and Notker Helfenberger and Beat Sch{\"a}tti and C. Schmidt and Markus Ruf and Vincent Ziswiler},
  journal={Russian Journal of Herpetology},
  year={2002},
  volume={9},
  pages={105-124}
}
The phylogenetic relationships of the Holarctic ratsnakes (Elaphe auct.) are inferred from portions of two mitochondrial genes, 12S rRNA and COI. Elaphe Fitzinger is made up of ten Palaearctic species. Natrix longissima Laurenti (type species) and four western Palaearctic species (hohenackeri, lineatus, persicus, and situla) are assigned to Zamenis Wagler. Its phylogenetic affinities with closely related genera, Coronella and Oocatochus, remain unclear. The East Asian Coluber porphyraceus… 

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References

SHOWING 1-10 OF 95 REFERENCES

Hemerophis, a new genus for Zamenis socotrae Günther, and a contribution to the phylogeny of Old World racers, whip snakes, and related genera (Reptilia: Squamata: Colubrinae)

External morphology, skull bones, vertebrae, visceral topography and hemipenis features of the Sokotra racer were examined. Considerable differences exist vis-a-vis Palaearctic and East African

Molecular systematics of new world gopher, bull, and pinesnakes (Pituophis: Colubridae), a transcontinental species complex.

TLDR
It is believed that three distinct species are included in the melanoleucus complex, Pituophis melanoleUCus (sensu stricto), P. catenifer, and P. ruthveni, and that their recognition better represents the evolutionary diversity within this species complex.

Molecular systematics of New World lampropeltinine snakes (Colubridae): implications for biogeography and evolution of food habits

TLDR
The reconstruction of the evolution of food habits among lampropeltinines suggests that a diet emphasizing lizards is ancestral, and therefore diets that mostly consist of mammals, squamate and bird eggs, and snakes are derived within the clade.

Phylogenetic relationships among European ratsnakes of the genus Elaphe Fitzinger based on mitochondrial DNA sequence comparisons

TLDR
The phylogenetic relationships in European ratsnakes of the genus Elaphe are analyzed, finding two very distinct haplotypes within the range of E. sauromates , indicating the existence of a third, so far unidentified, species within the E. quatuorlineata complex.

Hemipenial Morphology of African Snakes: A Taxonomic Review Part 1. Scolecophidia and Boidae

TLDR
The python hemipenis, like most boid hemipenes, has a prominent fleshy papilla on the asulcal surface of the proximal flounce, which is not found in Eryx hemipene, or in those of Lichanura rosefusca.

MITOCHONDRIAL DNA PHYLOGEOGRAPHY OF THE POLYTYPIC NORTH AMERICAN RAT SNAKE (ELAPHE OBSOLETA): A CRITIQUE OF THE SUBSPECIES CONCEPT

TLDR
Mitochondrial DNA analysis of the polytypic snake, Elaphe obsoleta, yields well-supported clades that do not conform to any of the currently accepted subspecies, and underscores the potential problems of recognizing subspecies based on one or a few characters.

A Taxonomic Study of the Ratsnakes VI. Validation of the Genera Gonyosoma Wagler and Elaphe Fitzinger

TLDR
Seasonal variation in the male reproductive system of Pacific Coast garter snakes and the biology and biodemography of Anolis carolinensiscarolinensis Voigt are studied.

Phylogenetic relationships among ascomycetes: evidence from an RNA polymerse II subunit.

TLDR
Findings show that a slowly evolving protein-coding gene such as RPB2 is useful for diagnosing phylogenetic relationships among fungi, and suggests that fruiting body formation and forcible discharge of ascospores were characters gained early in the evolution of the Ascomycota.

Evolutionary history of the hybridogenetic hybrid frog Rana esculenta as deduced from mtDNA analyses.

TLDR
The preponderance of R. esculenta individuals with lessonae mtDNA in samples from central Europe suggests that most lineages have gone through at least one mating between an R.Esculenta females with R. lessonae males, and reveals a greater reproductive role for R. Esculenta males than their partial sterility and infrequent matings would suggest.

A Taxonomic Study of the Ratsnakes, Genus Elaphe Fitzinger. I. The Status of the Name Scotophis laetus Baird and Girard (1853)

TLDR
The amount of material that has accumulated in the past few years greatly exceeds that which other workers have had and many areas are almost unknown herpetologically.
...