Nuevas localidades alicantinas de Carduncellus dianius Webb

Fernanz, José Carlos Cristóbal; Soler, M. R.; Villalba, Manuel Benito Crespo

doi:10.24310/abm.v24i0.8528

Cited by 1 publication

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“…1A, Table 1). Information on the location of C. dianius populations was obtained from previous field reports (d 'Arellano & Torres, 1981;Soler et al, 1999), and personal communications (the location of several populations of the species in Alicante was provided by JX Soler). Plant material was collected from young leaves, which were immediately dried in silica gel.…”

Section: Plant Materials and Dna Extractionmentioning

confidence: 99%

“…Among the Iberian-Balearic endemic species, Carduncellus dianius Webb [= Carthamus dianius (Webb) Coincy] remains unexplored in regard to its evolutionary history and its population genetic diversity and structure. Carduncellus dianius is a diploid (2n = 24; Vilatersana et al, 2000b) perennial plant with a narrow distribution range, restricted to less than 20 populations, which occurs in two main areas (Soler, Cristóbal & Crespo, 1999): the Dianic Mountains located in Alicante Province (eastern Iberian Peninsula; hereafter "Alicante"), and the northwestern part of the island of Ibiza (western Balearic Islands) along with the S'Espartar Islet, which is an islet off the western coast of Ibiza (both hereafter referred to as "Ibiza"). It inhabits low altitudes (0-500 m), mainly associated with coastal limestone rock crevices and, secondarily, to steep scrubland slopes.…”

Section: Introductionmentioning

confidence: 99%

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The impact of Pleistocene sea-level oscillations on plant genetic diversity: the case of the western Mediterranean endemic Carduncellus dianius (Asteraceae)

Herrando‐Moraira

Massó

Zani

et al. 2019

Botanical Journal of the Linnean Society

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To what extent Pleistocene sea-level fluctuations have affected the genetic diversity of species is one of the current topics in biogeographical research. Carduncellus dianius is a Mediterranean narrow endemic species, restricted to < 20 populations distributed along coastal areas in Alicante (mainland eastern Iberian Peninsula) and on the island of Ibiza (Balearic Islands). To get insights into its evolutionary history and its genetic diversity and structure, we combined the analysis of molecular markers (three plastid DNA regions and AFLP) with ecological niche modelling. Results from dated phylogeographical analyses revealed that this species might have originated in the continental region during the early Pleistocene. The colonization of Ibiza could have occurred by a single long-distance dispersal event, with a subsequent back-colonization from the island to the same continental area of origin. These results corroborate the role of islands as sources for mainland colonization (biodiversity reservoirs) and as refugia during glacial periods. Notably, we detected that populations located on stable landmasses (i.e. not affected by sea rising during interglacial cycles) harboured significantly higher genetic diversity than those that were periodically submerged during the periods of marine transgressions. Our results point out sea-level fluctuations as a factor to be considered in phylogeographical studies focused on species distributed along coastlines.

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Section: Plant Materials and Dna Extractionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%