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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Phylogenetic Relationships within GenusLeuciscus(Pisces, Cyprinidae) in Portuguese Fresh Waters, Based on Mitochondrial DNA CytochromebSequences
Molecular Phylogenetics and Evolution, Volume 8, No. 3, Year 1997
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Description
To investigate phylogenetic relationships amongLeuciscusspecies occurring in Portuguese inland waters, the cytochromebgene was sequenced from representatives of the main rivers. This study supports the recognition of the species level forL. pyrenaicus,including populations from the southern Portuguese drainages (Tejo, Sado, and Guadiana drainages), and forL. carolitertii,including populations from the northern Portuguese drainages. The existence of two new species occurring in the extreme southwestern drainages of Mira and Arade is also suggested. The present results support the monophyly of the Mira and the Arade populations, as well as an early divergence of these two lineages. The present-day distribution ofLeuciscusspecies is seen as a consequence of Pliocene and Pleistocene events, such as river disjunctions and posterior confluence in epicontinental seas and river captures. A mixture of haplotypes was observed in the Mondego and the Tejo drainages, which could be a consequence of ancient river captures, with a possible mitochondrial DNA introgression in the Tejo drainage and a recent introduction by man in the Mondego drainage. The pattern of differentiation among mtDNA haplotypes and their geographic distribution is discussed in terms of evolutionary aspects. © 1997 Academic Press.
Authors & Co-Authors
Brito, Rui Miguel
Unknown Affiliation
Bouvet, Yvette
France, Villeurbanne
Université Claude Bernard Lyon 1
Coelho, Maria Manuela
Unknown Affiliation
Statistics
Citations: 91
Authors: 3
Affiliations: 1
Identifiers
Doi:
10.1006/mpev.1997.0429
ISSN:
10557903
Research Areas
Genetics And Genomics