Reinterpretation of an Endangered Taxon Based on Integrative Taxonomy: The Case of Cynara Baetica (Compositae)

Overview

Journal PLoS One

Specialties General Medicine
Science

Date 2018 Nov 29

PMID 30485285

Citations 2

Authors

Sergi Masso

Jordi Lopez-Pujol

Roser Vilatersana

Affiliations

Soon will be listed here.

Abstract

The Strait of Gibraltar, the gateway between the Atlantic Ocean and the Mediterranean Sea, has a convulsive geological history, with recurring closing and opening events since the late Miocene. As a consequence, this region has played a major role in the evolutionary history of many species. Cynara baetica (Compositae) is a diploid perennial herb distributed in both sides of this strait. It is currently subdivided into two subspecies: C. baetica subsp. baetica for the Spanish populations, and C. baetica subsp. maroccana for the Moroccan ones. Following three different approximations of species delimitation, including phylogenetic and population genetic analyses (based on three AFLP primer combinations and two intergenic spacers of cpDNA), ecological niche modeling (ENM) and morphological studies, this taxon is investigated and reinterpreted. The results obtained showed a clear genetic, morphological and ecological differentiation between the two taxa and the important role played by the Strait of Gibraltar as a geographical barrier. Based on this evidence, the current taxonomic treatment is modified (both taxa should recover their specific rank) and specific conservation guidelines are proposed for the newly delimited taxa.

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References

Yokoyama , Lambeck , De Deckker P , Johnston , Fifield . Timing of the Last Glacial Maximum from observed sea-level minima. Nature. 2000; 406(6797):713-6. DOI: 10.1038/35021035. View

Hewitt G . The genetic legacy of the Quaternary ice ages. Nature. 2000; 405(6789):907-13. DOI: 10.1038/35016000. View

Warren D, Glor R, Turelli M . Environmental niche equivalency versus conservatism: quantitative approaches to niche evolution. Evolution. 2008; 62(11):2868-83. DOI: 10.1111/j.1558-5646.2008.00482.x. View

Kim K, Choi K, Jansen R . Two chloroplast DNA inversions originated simultaneously during the early evolution of the sunflower family (Asteraceae). Mol Biol Evol. 2005; 22(9):1783-92. DOI: 10.1093/molbev/msi174. View

Sanchez-Robles J, Balao F, Terrab A, Garcia-Castano J, Ortiz M, Vela E . Phylogeography of SW Mediterranean firs: different European origins for the North African Abies species. Mol Phylogenet Evol. 2014; 79:42-53. DOI: 10.1016/j.ympev.2014.06.005. View

Lumaret R, Mir C, Michaud H, Raynal V . Phylogeographical variation of chloroplast DNA in holm oak (Quercus ilex L.). Mol Ecol. 2002; 11(11):2327-36. DOI: 10.1046/j.1365-294x.2002.01611.x. View

Lynch M, Koskella B, Schaack S . Mutation pressure and the evolution of organelle genomic architecture. Science. 2006; 311(5768):1727-30. DOI: 10.1126/science.1118884. View

Ortiz M, Tremetsberger K, Talavera S, Stuessy T, Garcia-Castano J . Population structure of Hypochaeris salzmanniana DC. (Asteraceae), an endemic species to the Atlantic coast on both sides of the Strait of Gibraltar, in relation to Quaternary sea level changes. Mol Ecol. 2007; 16(3):541-52. DOI: 10.1111/j.1365-294X.2006.03157.x. View

Vargas P, Morton C, Jury S . Biogeographic patterns in Mediterranean and Macaronesian species of Saxifraga (Saxifragaceae) inferred from phylogenetic analyses of ITS sequences. Am J Bot. 1999; 86(5):724-34. View

10.

Jensen J, Bohonak A, Kelley S . Isolation by distance, web service. BMC Genet. 2005; 6:13. PMC: 1079815. DOI: 10.1186/1471-2156-6-13. View

11.

Pritchard J, Stephens M, Donnelly P . Inference of population structure using multilocus genotype data. Genetics. 2000; 155(2):945-59. PMC: 1461096. DOI: 10.1093/genetics/155.2.945. View

12.

Jakobsson M, Rosenberg N . CLUMPP: a cluster matching and permutation program for dealing with label switching and multimodality in analysis of population structure. Bioinformatics. 2007; 23(14):1801-6. DOI: 10.1093/bioinformatics/btm233. View

13.

Peakall R, Smouse P . GenAlEx 6.5: genetic analysis in Excel. Population genetic software for teaching and research--an update. Bioinformatics. 2012; 28(19):2537-9. PMC: 3463245. DOI: 10.1093/bioinformatics/bts460. View

14.

Vos P, Hogers R, Bleeker M, Reijans M, van de Lee T, Hornes M . AFLP: a new technique for DNA fingerprinting. Nucleic Acids Res. 1995; 23(21):4407-14. PMC: 307397. DOI: 10.1093/nar/23.21.4407. View

15.

Herrera C, Bazaga P . Adding a third dimension to the edge of a species' range: altitude and genetic structuring in mountainous landscapes. Heredity (Edinb). 2007; 100(3):275-85. DOI: 10.1038/sj.hdy.6801072. View

16.

Hampe A, Petit R . Conserving biodiversity under climate change: the rear edge matters. Ecol Lett. 2011; 8(5):461-7. DOI: 10.1111/j.1461-0248.2005.00739.x. View

17.

Shaw J, Lickey E, Beck J, Farmer S, Liu W, Miller J . The tortoise and the hare II: relative utility of 21 noncoding chloroplast DNA sequences for phylogenetic analysis. Am J Bot. 2011; 92(1):142-66. DOI: 10.3732/ajb.92.1.142. View

18.

Caujape-Castells J, Jansen R . The influence of the Miocene Mediterranean desiccation on the geographical expansion and genetic variation of Androcymbium gramineum (Cav.) McBride (Colchicaceae). Mol Ecol. 2003; 12(6):1515-25. DOI: 10.1046/j.1365-294x.2003.01839.x. View

19.

Su X, Wu G, Li L, Liu J . Species delimitation in plants using the Qinghai-Tibet Plateau endemic Orinus (Poaceae: Tridentinae) as an example. Ann Bot. 2015; 116(1):35-48. PMC: 4479750. DOI: 10.1093/aob/mcv062. View

20.

Evanno G, Regnaut S, Goudet J . Detecting the number of clusters of individuals using the software STRUCTURE: a simulation study. Mol Ecol. 2005; 14(8):2611-20. DOI: 10.1111/j.1365-294X.2005.02553.x. View