Article
Contrast between extensive variation of 28S rDNA and stability of 5S rDNA and telomeric repeats in the diploid-polyploid Squalius alburnoides complex and in its maternal ancestor Squalius pyrenaicus (Teleostei, Cyprinidae).
Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology - 1 Jan 2006
Gromicho Marta, Coutanceau Jean-Pierre, Ozouf-Costaz Catherine, Collares-Pereira Maria João
Abstract excerpt
The diploid-polyploid Squalius alburnoides complex resulted from interspecific hybridization. The chromosomal mapping of 28S and 5S ribosomal genes and of (TTAGGG)n telomeric repeats was performed on specimens from the complex and from the sympatric bisexual species S. pyrenaicus (the complex maternal ancestor) as part of an investigation of the evolutionary relationships between genomic constitutions and the...
Topics
- Alleles
- Animals
- Chromosome Mapping
- Chromosomes
- Cyprinidae
- DNA Probes
- DNA, Ribosomal
- Diploidy
- Female
- Genetic Markers
- Genetic Variation
- Genome
- In Situ Hybridization, Fluorescence