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Hybridization masks speciation in the evolutionary history of the Galápagos marine iguana
Full text linkMacLeod A, Rodríguez A, Vences M, et al. Hybridization masks speciation in the evolutionary history of the Galápagos marine iguana. Proceedings of the Royal Society B: Biological Sciences. 2015;282(1809): 20150425
ANCIENT TETRAPLOIDY AND SLOW MOLECULAR EVOLUTION IN SCAPHIOPHRYNE: ECOLOGICAL CORRELATES OF SPECIATION MODE IN MALAGASY RELICT AMPHIBIANS
No full textKaryotypes of three microhylid frog species of the Malagasy relict genus Scaphiophryne were studied: Scaphiophryne gottlebei, S. madagascariensis and S. spinosa. The latter two showed a plesiomorphic ranoid karyotype of 2n = 26. In contrast, tetraploidy was demonstrated in S. gottlebei, which constitutes an exceptional state among Malagasy amphibians. A combination of different banding techniques and of rDNA-FISH provided evidence for allopolyploidy in the species and for a completed subsequent functional and structural diploidization. Phylogenetic analysis of mitochondrial 16S rDNA sequences revealed a significant deceleration of nucleotide substitution rates in Scaphiophryne. The tetraploidy of S. gottlebei probably occurred early in their radiation. Ecological and behavioural patterns of Scaphiophryne probably favoured intraspecific gene flow and hybridization events, thereby leading to slow molecular substitution rates and to allopolyploid chromosome speciation in S. gottlebei
FIGURE 4 in Pretty in pink: A new treefrog species of the genus Boophis from North-Eastern Madagascar
No full textFIGURE 4. Maximum-likelihood tree of 13 Boophis species including B. ulftunni sp. n. Numbers on nodes indicate bootstrap values higher than 50% in MP (first numbers) and ML tree searches (second numbers).Published as part of Wollenberg, K. C., Andreone, F., Glaw, F. & Vences, M., 2008, Pretty in pink: A new treefrog species of the genus Boophis from North-Eastern Madagascar, pp. 58-68 in Zootaxa 1684 (1) on page 66, DOI: 10.11646/zootaxa.1684.1.3, http://zenodo.org/record/510694
FIGURE 2 in Pretty in pink: A new treefrog species of the genus Boophis from North-Eastern Madagascar
No full textFIGURE 2. Life colouration of B. ulftunni. The photos show specimens from I, Masoala, II, Tsararano, IIIa, Marojejy (ZSM 80/2005; IIIb, ventral view), and IVa, Anjanaharibe-Sud (IVb, ventral view).Published as part of Wollenberg, K. C., Andreone, F., Glaw, F. & Vences, M., 2008, Pretty in pink: A new treefrog species of the genus Boophis from North-Eastern Madagascar, pp. 58-68 in Zootaxa 1684 (1) on page 63, DOI: 10.11646/zootaxa.1684.1.3, http://zenodo.org/record/510694
NATURAL HISTORY AND LARVAL MORPHOLOGY OF BOOPHIS OCCIDENTALIS (ANURA: RANIDAE: RHACOPHORINAE) PROVIDE NEW INSIGHTS INTO THE PHYLOGENY AND ADAPTIVE RADIATION OF ENDEMIC MALAGASY FROGS
No full textMolecuar and karyological data on the Southasian ranid genera Indirana, Nyctibatrachus andNannophrys (Anura: Ranidae)
No full textIl lavoro è stata pubblicato su Hamadryad (ISSN: 0972-205X, CENTRE HERPETOLOGY, POST BAG 4, MAMALLAPURAM, INDIA, TAMIL NADU, 603104). Il codice ISSN non è accettato dal sit
NUOVI DATI CROMOSOMICI SUGLI ANURI DEL MADAGASCAR: IMPLICAZIONI TASSONOMICHE E FILOGENETICHE
No full textAncient tetraploidy and slow molecular evolution in Scaphiophryne: ecological correlates of speciation mode in Malagasy relict amphibians.
No full textA new Mantidactylus frog from the rainforests of north-eastern Madagascar, and its karyological relationships
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