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  • Dufresnes, ChristopheUniv Lausanne, Lab Conservat Biol, Biophore Bldg, CH-1015 Lausanne, Switzerland; Hintermann & Weber, Ave Alpes 25, CH-1820 Montreux, Switzerland (author)

Fifteen shades of green : The evolution of Bufotes toads revisited

  • Article/chapterEnglish2019

Publisher, publication year, extent ...

  • Elsevier BV,2019
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:uu-397415
  • https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-397415URI
  • https://doi.org/10.1016/j.ympev.2019.106615DOI

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  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • The radiation of Palearctic green toads (Bufotes) holds great potential to evaluate the role of hybridization in phylogeography at multiple stages along the speciation continuum. With fifteen species representing three ploidy levels, this model system is particularly attractive to examine the causes and consequences of allopoly-ploidization, a prevalent yet enigmatic pathway towards hybrid speciation. Despite substantial efforts, the evolutionary history of this species complex remains largely blurred by the lack of consistency among the corresponding literature. To get a fresh, comprehensive view on Bufotes phylogeography, here we combined genome-wide multilocus analyses (RAD-seq) with an extensive compilation of mitochondrial, genome size, niche modelling, distribution and phenotypic (bioacoustics, morphometrics, toxin composition) datasets, representing hundreds of populations throughout Eurasia. We provide a fully resolved nuclear phylogeny for Bufotes and highlight exceptional cyto-nuclear discordances characteristic of complete mtDNA replacement (in 20% of species), mitochondrial surfing during post-glacial expansions, and the formation of homoploid hybrid populations. Moreover, we traced the origin of several allopolyploids down to species level, showing that all were exclusively fathered by the West Himalayan B. latastii but mothered by several diploid forms inhabiting Central Asian lowlands, an asymmetry consistent with hypotheses on mate choice and Dobzhansky-Muller incompatibilities. Their intermediate call phenotypes potentially allowed for rapid reproductive isolation, while toxin compositions converged towards the ecologically-closest parent. Across the radiation, we pinpoint a stepwise progression of reproductive isolation through time, with a threshold below which hybridizability is irrespective of divergence (< 6My), above which species barely admix and eventually evolve different mating calls (6-10My), or can successfully cross-breed through allopolyploidization (> 15My). Finally, we clarified the taxonomy of Bufotes (including genetic analyses of type series) and formally described two new species, B. cypriensis sp. nov. (endemic to Cyprus) and B. perrini sp. nov. (endemic to Central Asia). Embracing the genomic age, our framework marks the advent of a new exciting era for evolutionary research in these iconic amphibians.

Subject headings and genre

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  • Mazepa, GlibUppsala universitet,Evolutionsbiologi,Univ Lausanne, Dept Ecol & Evolut, Biophore Bldg, CH-1015 Lausanne, Switzerland(Swepub:uu)glima176 (author)
  • Jablonski, DanielComenius Univ, Dept Zool, Ilkovicova 6, Bratislava 84215, Slovakia (author)
  • Oliveira, Ricardo CaliariKatholieke Univ Leuven, Zool Inst, Lab Socioecol & Social Evolut, Naamsestr 59, B-3000 Leuven, Belgium (author)
  • Wenseleers, TomKatholieke Univ Leuven, Zool Inst, Lab Socioecol & Social Evolut, Naamsestr 59, B-3000 Leuven, Belgium (author)
  • Shabanov, Dmytro A.Kharkov Natl Univ, Dept Zool & Anim Ecol, Svobody Sq 4, UA-61022 Kharkov, Ukraine (author)
  • Auer, MarkusSenckenberg Nat Hist Collect Dresden, Museum Zool, Konigsbrucker Landstr 159, D-01109 Dresden, Germany (author)
  • Ernst, RaffaelSenckenberg Nat Hist Collect Dresden, Museum Zool, Konigsbrucker Landstr 159, D-01109 Dresden, Germany (author)
  • Koch, ClaudiaLeibniz Inst Biodiversitat Tiere, Zoolog Forschungsmuseum Alexander Koenig, Bonn, Germany (author)
  • Ramirez-Chaves, Hector E.Univ Caldas, Dept Ciencias Biol, Fac Ciencias Exactas & Nat, Calle 65 26-10, Manizales, Caldas, Colombia;Univ Caldas, Museo Hist Nat, Ctr Museos, Calle 65 26-10, Manizales, Caldas, Colombia (author)
  • Mulder, Kevin PatrickUniv Porto, Ctr Invest Biodiversidade & Recursos Genet, CIBIO InBIO, Campus Agr Vairao, P-4485661 Vairao, Portugal; Natl Zool Pk, Smithsonian Conservat Biol Inst, Ctr Conservat Genom, 3001 Connecticut Ave NW, Washington, DC 20008 USA; Natl Museum Nat Hist, Smithsonian Inst, Dept Vertebrate Zool, 10th St & Constitution Ave NW, Washington, DC 20560 USA (author)
  • Simonov, EvgeniyRussian Acad Sci, Res Grp Physiol & Genet Hydrobionts, Siberian Branch, Inst Systemat & Ecol Anim, Novosibirsk 630091, Russia; Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Fed Res Ctr,Lab Genom Res & Biotechnol, Krasnoyarsk 660036, Russia (author)
  • Tiutenko, ArthurUniv Erlangen Nurnberg, Schlosspl 6, D-91054 Erlangen, Germany (author)
  • Kryvokhyzha, DmytroUppsala universitet,Växtekologi och evolution(Swepub:uu)dmykr161 (author)
  • Wennekes, Paul L.Univ Reading, Sch Biol Sci, Plant Syst & Evolut, Philip Lyle Bldg 208, Reading RG6 6LA, Berks, England (author)
  • Zinenko, Oleksandr I.Kharkov Natl Univ, Dept Zool & Anim Ecol, Svobody Sq 4, UA-61022 Kharkov, Ukraine; Kharkov Natl Univ, Museum Nat, Trinkler St 8, UA-61058 Kharkov, Ukraine (author)
  • Korshunov, Oleksiy V.Kharkov Natl Univ, Dept Zool & Anim Ecol, Svobody Sq 4, UA-61022 Kharkov, Ukraine (author)
  • Al-Johany, Awadh M.King Saud Univ, Dept Zool, Riyadh 11451, Saudi Arabia (author)
  • Peregontsev, Evgeniy A.Zoocomplex MChJ, Gagarin Vil 14, Tashkent 100149, Uzbekistan (author)
  • Masroor, RafaqatPakistan Museum Nat Hist, Garden Ave, Islamabad 44000, Pakistan (author)
  • Betto-Colliard, CarolineUniv Lausanne, Dept Ecol & Evolut, Biophore Bldg, CH-1015 Lausanne, Switzerland (author)
  • Denoel, MathieuUniv Liege, Freshwater & OCean Sci Unit Res FOCUS, Behav Biol Grp, Lab Fish & Amphibian Ethol, Liege, Belgium (author)
  • Borkin, Leo J.Russian Acad Sci, Zool Inst, Dept Herpetol, St Petersburg 199034, Russia (author)
  • Skorinov, Dmitriy V.Russian Acad Sci, Inst Cytol, St Petersburg, Russia (author)
  • Pasynkova, Roza A.Russian Acad Sci, Inst Cytol, St Petersburg, Russia (author)
  • Mazanaeva, Lyudmila F.Dagestan State Univ, Makhachkala, Russia (author)
  • Rosanov, Juriy M.Russian Acad Sci, Inst Cytol, St Petersburg, Russia (author)
  • Dubey, SylvainHintermann & Weber, Ave Alpes 25, CH-1820 Montreux, Switzerland; Univ Lausanne, Dept Ecol & Evolut, Biophore Bldg, CH-1015 Lausanne, Switzerland; Agrosustain SA, Route Duillier 50, CH-1260 Nyon, Switzerland (author)
  • Litvinchuk, SpartakRussian Acad Sci, Inst Cytol, St Petersburg, Russia; Dagestan State Univ, Makhachkala, Russia (author)
  • Univ Lausanne, Lab Conservat Biol, Biophore Bldg, CH-1015 Lausanne, Switzerland; Hintermann & Weber, Ave Alpes 25, CH-1820 Montreux, SwitzerlandEvolutionsbiologi (creator_code:org_t)

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  • In:Molecular Phylogenetics and Evolution: Elsevier BV1411055-79031095-9513

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