Advanced

Genetic structure of the diploid–polyploid fish Squalius alburnoides in southern Iberian basins Tejo and Guadiana, based on microsatellites

Crespo-López, M. E.; Pala, Irene LU ; Duarte, T. L.; Dowling, T. E. and Coelho, Maria Manuela (2007) In Journal of Fish Biology 71(Supplement C). p.423-436
Abstract
Several studies have demonstrated the hybrid origin of Squalius alburnoides, a complex of diploid, triploid and tetraploid fish, with Squalius pyrenaicus as the maternal ancestor and an Anaecypris hispanica-like species as the paternal ancestor. The aim of this study was to assess patterns of genetic diversity and similarity between sympatric forms of the different ploidy levels of S. alburnoides and related parental species in the two largest basins that are part of its southern Iberian distribution, the Tejo and Guadiana, using microsatellites. High levels of genetic diversity were found in populations of S. alburnoides from both basins, reflecting the hybrid origin, the high diversity of forms in these river basins and the different... (More)
Several studies have demonstrated the hybrid origin of Squalius alburnoides, a complex of diploid, triploid and tetraploid fish, with Squalius pyrenaicus as the maternal ancestor and an Anaecypris hispanica-like species as the paternal ancestor. The aim of this study was to assess patterns of genetic diversity and similarity between sympatric forms of the different ploidy levels of S. alburnoides and related parental species in the two largest basins that are part of its southern Iberian distribution, the Tejo and Guadiana, using microsatellites. High levels of genetic diversity were found in populations of S. alburnoides from both basins, reflecting the hybrid origin, the high diversity of forms in these river basins and the different modes of reproduction of the complex. Microsatellites indicated low values of genetic differentiation between the non-hybrid all-male form of S. alburnoides and A. hispanica, supporting the view that these forms share a common ancestor. In some instances, diploid and triploid hybrids from the same river basin were more closely related to each other than to their counterparts in the other basins, suggesting an ancient origin for the complex in these Iberian southern basins. (Less)
Please use this url to cite or link to this publication:
author
publishing date
type
Contribution to journal
publication status
published
subject
keywords
hybrid complex, diploid–polyploid, Guadiana, microsatellites, Tejo
in
Journal of Fish Biology
volume
71
issue
Supplement C
pages
423 - 436
publisher
Wiley-Blackwell
external identifiers
  • scopus:36549074185
ISSN
0022-1112
DOI
10.1111/j.1095-8649.2007.01688.x
language
English
LU publication?
no
id
faf702ca-db6b-4449-8340-fd0f94fe8d84 (old id 1787891)
date added to LUP
2011-03-02 13:19:34
date last changed
2017-11-19 03:28:59
@article{faf702ca-db6b-4449-8340-fd0f94fe8d84,
  abstract     = {Several studies have demonstrated the hybrid origin of Squalius alburnoides, a complex of diploid, triploid and tetraploid fish, with Squalius pyrenaicus as the maternal ancestor and an Anaecypris hispanica-like species as the paternal ancestor. The aim of this study was to assess patterns of genetic diversity and similarity between sympatric forms of the different ploidy levels of S. alburnoides and related parental species in the two largest basins that are part of its southern Iberian distribution, the Tejo and Guadiana, using microsatellites. High levels of genetic diversity were found in populations of S. alburnoides from both basins, reflecting the hybrid origin, the high diversity of forms in these river basins and the different modes of reproduction of the complex. Microsatellites indicated low values of genetic differentiation between the non-hybrid all-male form of S. alburnoides and A. hispanica, supporting the view that these forms share a common ancestor. In some instances, diploid and triploid hybrids from the same river basin were more closely related to each other than to their counterparts in the other basins, suggesting an ancient origin for the complex in these Iberian southern basins.},
  author       = {Crespo-López, M. E. and Pala, Irene and Duarte, T. L. and Dowling, T. E. and Coelho, Maria Manuela},
  issn         = {0022-1112},
  keyword      = {hybrid complex,diploid–polyploid,Guadiana,microsatellites,Tejo},
  language     = {eng},
  number       = {Supplement C},
  pages        = {423--436},
  publisher    = {Wiley-Blackwell},
  series       = {Journal of Fish Biology},
  title        = {Genetic structure of the diploid–polyploid fish Squalius alburnoides in southern Iberian basins Tejo and Guadiana, based on microsatellites},
  url          = {http://dx.doi.org/10.1111/j.1095-8649.2007.01688.x},
  volume       = {71},
  year         = {2007},
}