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https://hdl.handle.net/1822/86849
Título: | To be, or not to be: that is the hamletic question of cryptic evolution in the Eastern Atlantic and Mediterranean Raja miraletus species complex |
Autor(es): | Ferrari, Alice Crobe, Valentina Cannas, Rita Leslie, Rob W. Serena, Fabrizio Stagioni, Marco Costa, Filipe O. Golani, Daniel Hemida, Farid Zaera-Perez, Diana Sion, Letizia Carbonara, Pierluigi Fiorentino, Fabio Tinti, Fausto Cariani, Alessia |
Palavras-chave: | Brown skate Cartilaginous fish Conservation biology Microsatellite loci mtDNA Population genetics |
Data: | 2023 |
Editora: | MDPI |
Revista: | Animals |
Citação: | Ferrari, A.; Crobe, V.; Cannas, R.; Leslie, R.W.; Serena, F.; Stagioni, M.; Costa, F.O.; Golani, D.; Hemida, F.; Zaera-Perez, D.; et al. To Be, or Not to Be: That Is the Hamletic Question of Cryptic Evolution in the Eastern Atlantic and Mediterranean Raja miraletus Species Complex. Animals 2023, 13, 2139. https://doi.org/10.3390/ani13132139 |
Resumo(s): | Despite a high species diversity, skates (Rajiformes) exhibit remarkably conservative morphology and ecology. Limited trait variations occur within and between species, and cryptic species have been reported among sister and non-sister taxa, suggesting that species complexes may be subject to stabilising selection. Three sibling species are currently recognised in the Raja miraletus complex: (i) R. miraletus occurring along the Portuguese and Mediterranean coasts, (ii) R. parva in the Central-Eastern Atlantic off West Africa and (iii) R. ocellifera in the Western Indian Ocean off South Africa. In the present study, the genetic variation at mitochondrial and nuclear markers was estimated in the species complex by analysing 323 individuals sampled across most of its geographical distribution area to test the hypothesis that restricted gene flow and genetic divergence within species reflect known climate and bio-oceanographic discontinuities. Our results support previous morphological studies and confirm the known taxonomic boundaries of the three recognised species. In addition, we identified multiple weakly differentiated clades in the Northeastern Atlantic Ocean and Mediterranean, at least two additional cryptic taxa off Senegal and Angola, a pronounced differentiation of ancient South African clades. The hidden genetic structure presented here may represent a valuable support to species’ conservation action plans. |
Tipo: | Artigo |
Descrição: | The newly produced sequence data that support the findings of this study are openly available in GenBank at https://www.ncbi.nlm.nih.gov/genbank (accessed on 27 June 2023) reference number OR193802–OR194004. The EST-SSR data that support the findings of this study are available as a genotype matrix from the corresponding author upon request. |
URI: | https://hdl.handle.net/1822/86849 |
DOI: | 10.3390/ani13132139 |
ISSN: | 2076-2615 |
Versão da editora: | https://www.mdpi.com/2076-2615/13/13/2139 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CBMA - Artigos/Papers |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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animals-13-02139.pdf | 2,35 MB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons