Experimental Hybridization within the GenusTriturus(Urodela: Salamandridae). II. The Lampbrush Chromosomes of F₁Species Hybrids BetweenTriturus Cristatus CarnifexandT. Vulgaris Meridionale

Phylotranscriptomic evidence for pervasive ancient hybridization among Old World salamanders

“…Lissotriton species are widespread ecological generalists, often occurring in sympatry with Triturus species, and the two genera share an overall similar reproductive behavior. Given that experimental hybridization between Triturus and Lissotriton (and Lissotriton and Ichthyosaura) can result in viable offspring (Pariser 1932;Mancino et al 1978), it is reasonable to assume that their respective ancestors could have successfully hybridized in the wild. Some PhyloNet networks suggest that ancestral populations of Lissotriton have exchanged genes with other lineages.…”

“…Additionally, hybridization between genera has been reported under experimental conditions, including Ichthyosaura, Lissotriton, Ommatotriton, and Triturus (e.g. Pariser 1932;Mancino et al 1978;Macgregor et al 1990), and between Pleurodeles and Tylototriton (Ferrier & Beetschen 1973). Thus, the use of a genome-wide sampling of nuclear loci and methods that account for introgression may be necessary to resolve the disputed nodes in the salamandrid tree.…”

Testing the hybrid superiority hypothesis in crested and marbled newts

“…In European newts, natural hybridization has been reported between Triturus cristatus Laurenti, , and T. marmoratus Latreille, (Caudata: Salamandridae) (Arntzen & Wallis, ; Vallée, ), T. marmoratus and T. pygmaeus Wolterstorff, (Espregueira Themudo, Nieman, & Arntzen, ), Lissotriton vulgaris Linnaeus, and L. montandoni Boulenger, (Babik, Szymura, & Rafiński, ), L. vulgaris and L. helveticus Razoumovsky, 1789 (Arntzen, de Wijer, Jehle, Smit, & Smit, ; Griffiths, Roberts, & Sims, ), and also among species in T. cristatus species group (Wielstra & Arntzen, ; Wielstra, McCartney‐Melstad, Arntzen, Butlin, & Shaffer, ). In captivity, hybridization is more frequent (Cogălniceanu, ) and may even involve intergeneric reproduction (Macgregor, Sessions, & Arntzen, ; Mancino, Ragghianti, & Bucci‐Innocenti, ). Newts of the genus Triturus provide an excellent case study for evolutionary biology and the study of interspecific hybridization, since species ranges are largely contiguous, with pairs representing different levels of relatedness (Arntzen, Üzüm, Ajduković, Ivanović, & Wielstra, ; Arntzen, Wielstra, & Wallis, ).…”