PHYLOGENY AND EVOLUTION OF THE GENUS BARBUS IN THE IBERIAN PENINSULA AS REVEALED BY ALLOZYME ELECTROPHORESIS

Citation
A. Machordom et al., PHYLOGENY AND EVOLUTION OF THE GENUS BARBUS IN THE IBERIAN PENINSULA AS REVEALED BY ALLOZYME ELECTROPHORESIS, Journal of Fish Biology, 47(2), 1995, pp. 211-236
Citations number
55
Categorie Soggetti
Marine & Freshwater Biology
Journal title
ISSN journal
00221112
Volume
47
Issue
2
Year of publication
1995
Pages
211 - 236
Database
ISI
SICI code
0022-1112(1995)47:2<211:PAEOTG>2.0.ZU;2-A
Abstract
Variation of 14 enzyme systems encoded by 31 presumptive loci in diffe rent barbel species was studied using starch gel electrophoresis. Eigh teen samples representing 11 Barbus tetraploid taxa were taken, includ ing 10 populations from the Iberian Peninsula, six from other parts of western and southern Europe, one from northern Africa and one diploid species as outgroup from Asia Minor. The genetic analysis reassessed of the taxonomic status of the Iberian barbels into two distinct speci es groups. The first group included B. bocagei, B. coiniza, B. graelis ii, B. guiraonis, B. microcephalus, and B, sclateri, that aligned with B. callensis from northern Africa and with B. apoensis from Asia Mino r; the other group included B. haasi and B. meridionalis that was rela ted to the European species, B, barbus, B. plebejus and B. peloponnesi us. These groups are probably not monophyletic. It is suggested that t he isolation of the Iberian Peninsula from Europe since the Oligocene- Miocene may explain the genetic affinities of the Iberian barbels with those of North African rather than with the European group. (C) 1995 The Fisheries Society of the British isles