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Phylogeographical analysis reveals multiple conservation units in brook lampreys Lampetra planeri of portuguese streams
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Orientador(es)
Resumo(s)
The populations of brook lamprey Lampetra planeri of Portuguese Rivers were analysed phylogeographically
using a fragment of 644 bp of the mitochondrial control region of 158 individuals from
six populations. Samples representing L. planeri and migratory lampreys Lampetra fluviatilis of
rivers draining to the North Sea and the Baltic Sea were also included to assess the relationships of
Portuguese samples. The data support a clear differentiation of all the populations studied. Several
populations, which are isolated among themselves and also from the migratory lampreys, proved
to be entirely composed of private haplotypes, a finding that supports some time of independent
evolutionary history for these populations. This, combined with the geographic confinement to small
water bodies, justifies the recognition of at least four conservation units in the Portuguese rivers
Sado, São Pedro, Nabão and Inha.
Descrição
Palavras-chave
Allopatric speciation Conservation units Lampetra Phylogeography Portugal
Contexto Educativo
Citação
Journal of Fish Biology, 77, 361-371
Editora
Blackwell Publishing