Dispersal of Viviparity Across Contact Zones in Iberian Populations of Fire Salamanders (Salamandra) Inferred From Discordance of Genetic and Morphological Traits

Garcı́a-Parı́s, Mario; Alcobendas, M.; Buckley, David; Wake, David B.

doi:10.1111/j.0014-3820.2003.tb00221.x

Cited by 154 publications

(120 citation statements)

References 55 publications

(83 reference statements)

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“…Phylogenetic relationships of the major clades within the Iberian subspecies of S. salamandra using ML analysis of 326 aligned nucleotides from the mitochondrial cytochrome b gene combining 168 new sequences and all available Iberian Salamandra spp. GenBank sequences (results not shown) do not add to what was previously established (García-Paris et al 1998;García-París et al 2003;Steinfartz et al 2000). The clade S. s. crespoi remained monoplyletic and the newly added S. s. gallaica sequences were polyphyletic.…”

Section: Population Genetic Structurementioning

confidence: 66%

“…We added 86 cytochrome b sequences from the GeneBank produced by García-París et al (2003) to the 168 sequences. This enlarged set will allow a better understanding of the wider regional evolutionary patterns of the species in Iberia.…”

Section: Molecular Clock Dating Analysismentioning

confidence: 99%

“…The term subspecies is used for populations that display slight morphological differences in allopatry and evidence of intergradation (morphological intermediacy) in contact zones with other conspecific populations (Wilson and Brown 1953). Previously published results (García-París et al 2003;Steinfartz et al 2000), identified two main clades: (1) the central, western and eastern Europe largely unresolved clade including S. s. gallaica and other subspecies (García-París et al 2003;Steinfartz et al 2000), and (2) the southern Iberian clade that groups S. s. crespoi, S. s. morenica and S. s. longirostris. These three subspecies hypothetically diverged from a refugium in southern Spain during the Pliocene (García-Paris et al 1998).…”

Section: Introductionmentioning

confidence: 99%

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Salamandra salamandra (Amphibia: Caudata: Salamandridae) in Portugal: not all black and yellow

et al. 2011

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The fire salamander complex is quite diverse in the Iberian Peninsula where nine subspecies of Salamandra salamandra are currently recognized. Here, we analysed the geographical distribution of the subspecies S. s. gallaica and S. s. crespoi using partial sequences of the mitochondrial cytochrome b gene of 168 individuals from 12 locations in Portugal. Our results support the existence of a deep lineage divergence between the two subspecies, with non-overlapping geographical distributions except in two contact zones: one in Sesimbra on the western coast, and another in Alcoutim on the southeastern border with Spain. Moreover, S. s. crespoi displays signs of gene flow among the sampled locations whereas S. s. gallaica shows evidence of some restriction to gene flow. Present-day genetic make-up of S. s. gallaica and S. s. crespoi is a result of past historical events, fine-tuned by contemporary Iberian geoclimate. Humid mountain areas were found to harbour increased genetic diversity possibly acting as past refugia during drier interglacial periods. To analyse wider geographical patterns and lineage splitting events within S. salamandra we performed a Bayesian dating analysis completing our data set with previously published sequences. The observed divergences were associated to successive biogeographic scenarios, and to other Iberian species showing similar trends.

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Section: Population Genetic Structurementioning

confidence: 66%

Section: Molecular Clock Dating Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Salamandra salamandra (Amphibia: Caudata: Salamandridae) in Portugal: not all black and yellow

et al. 2011

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“…For L. larvaepartus it was hypothesised that viviparity might have evolved due to competition avoidance (Iskandar et al 2014). In pueriparous, adelphophagous subspecies of S. salamandra it is hypothesised that scarcity of open water and harsh environments promoted viviparity (García-París et al 2003, Buckley et al 2007, Velo-Antón et al 2012, Escoriza and Ben Hasssine 2014. Within the Nimba mountains high altitude grasslands standing open water is only present during some months during the rainy season at two locations, temperature fluctuations are large and competition quite likely scarce as only two other anuran species occur within the same area (Guibé andLamotte 1958, L. Sandberger-Loua 2016a).…”

Section: Ecology Of Nimba Toadsmentioning

confidence: 99%

A review of the reproductive biology of the only known matrotrophic viviparous anuran, the West African Nimba toad, Nimbaphrynoides occidentalis

Sandberger-Loua¹,

Müller²,

Rödel³

2017

ZSE

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Amphibians, and anurans in particular, show the highest diversity of reproductive modes among tetrapods. Nevertheless, viviparity is scarce in anurans and its occurrence is even more often assumed rather than confirmed. Probably the best studied viviparous amphibian is the Nimba toad, Nimbaphrynoides occidentalis. During more than 40 years of research, the Nimba toad's reproductive morphology, endocrine activity of the ovary as well as the pituitary gland, and to some extent the ecological impact (seasonality, humidity, food availability) on reproduction was examined. Due to the Nimba toad's unique reproductive mode, summaries are usually included in reviews discussing amphibian reproduction and articles on reproductive biology often discuss the exceptional reproductive system of Nimba toads. However, to our knowledge a detailed synthesis, summarising all the different original studies on the toad's reproduction, is so far missing. In this paper we review and summarise all available initial publications, which often have been published in French and/or are difficult to access. A short overview is given of the climatic and environmental conditions experienced by Nimba toads and the key findings supporting a "true" viviparous reproduction with matrotrophy (maternal provision of nutrition during the gestation) and pueriparity (birth of juveniles). Then foetal development (morphological, gonad and pituitary development), and the female (ovary, oviduct, pituitary and their endocrine interactions) and the male reproductive system (testes and pituitary) are reviewed. Finally, the reproductive cycle and its link to the Nimba mountains' seasonality and ecological/ conservation implications are discussed. Key WordsAmphibia development evolution ovary oviduct pueriparity seasonality testes uterus

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“…Fonseca et al, 2009;García-París et al, 2003;Miraldo et al, 2011;Steinfartz et al, 2000) to low mitochondrial differentiation across both sides of the Strait of Gibraltar (e.g. Carranza et al, 2006;Fromhage et al, 2004;Schmitt et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

Phylogeny, phylogeography, and evolution in the Mediterranean region: News from a freshwater mussel (Potomida, Unionida)

Froufe

Prié

Faria

et al. 2016

Molecular Phylogenetics and Evolution

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a b s t r a c tThe Potomida genus (Bivalvia, Unionida) has a Circum-Mediterranean distribution and like other freshwater mussel species, its populations have suffered dramatic declines. Although this genus is currently considered as monotypic, it has a long history of taxonomic revisions and presently many aspects of its systematics and evolutionary history are unclear. We sampled a total of 323 individuals from 39 different sites across the Potomida genus distribution, and sequenced two mitochondrial (16S rDNA and Cytochrome c Oxidase Subunit I) and one nuclear (28S rDNA) genes to clarify its phylogeny and phylogeographic history. Our results show that the genus includes two well-supported clades, one comprising solely the western Mediterranean species Potomida littoralis, and the other including two eastern Mediterranean species, the Greek endemic P. acarnanica and the Anatolian and Middle Eastern P. semirugata. We suggest that Potomida started radiating during the upper Miocene, and that both vicariance and dispersal events shaped the diversification and distribution of the genus along the Mediterranean region. P. littoralis is further divided in two mitochondrial lineages, one restricted to Europe and the other occurring mostly in North Africa. Moreover, some European basins present both lineages in sympatry. The conservation status of the three recognized species should be reevaluated, particularly P. acarnanica, since it is restricted to two Greek river basins presenting a high risk of extinction. Overall, our results clarify some important gaps in knowledge concerning the phylogeny, phylogeography and evolution of the Potomida genus in the Mediterranean region with important taxonomical, ecological and conservational implications.

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Dispersal of Viviparity Across Contact Zones in Iberian Populations of Fire Salamanders (Salamandra) Inferred From Discordance of Genetic and Morphological Traits

Cited by 154 publications

References 55 publications

Salamandra salamandra (Amphibia: Caudata: Salamandridae) in Portugal: not all black and yellow

Salamandra salamandra (Amphibia: Caudata: Salamandridae) in Portugal: not all black and yellow

A review of the reproductive biology of the only known matrotrophic viviparous anuran, the West African Nimba toad, Nimbaphrynoides occidentalis

Phylogeny, phylogeography, and evolution in the Mediterranean region: News from a freshwater mussel (Potomida, Unionida)

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