| General information |
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Coregonus lavaretus (Linnaeus, 1758) |
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| Common name | European whitefish |
| Synonyms |
- |
| IUCN Red List status (2014) |
Vulnerable (VU) |
| Habitat |
Saltwater and freshwater |
| Systematics |
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Neopterygii; Teleostei; Protacanthopterygii; Salmoniformes; Salmonidae. |
| Geographical distribution |
Japan; Iran; Kazakhstan; Kyrgyzstan; Turkey; Russia; UK; Germany; France; Italy; Greece; Bulgaria; Ukraine; Romania; Norway; Sweden; Denmark; Ireland; Finland; Belgium; Netherlands; Albania; Austria; Czech Republic; Estonia; Faroe Islands; Isle of Man; Latvia; Lithuania; Poland; Serbia; Slovakia; Svalbard and Jan Mayen; Switzerland |
| Occurrence |
introduced: Japan; introduced: Iran; native: Kazakhstan; introduced: Kyrgyzstan; introduced: Turkey; native: Russia; native: UK; introduced: Germany; native: France; introduced: Italy; introduced: Greece; introduced: Bulgaria; questionable: Ukraine; introduced: Romania; questionable: Norway; questionable: Sweden; native: Denmark; error: Ireland; questionable: Finland; introduced: Belgium; not established: Netherlands; questionable: Albania; questionable: Austria; introduced: Czech Republic; native: Estonia; questionable: Faroe Islands; questionable: Isle of Man; questionable: Latvia; questionable: Lithuania; questionable: Poland; introduced: Serbia; introduced: Slovakia; questionable: Svalbard and Jan Mayen; native: Switzerland |
| Remarks |
Short arms of chromosomes 1 have a relative length equal to 1.1-1.3 of the size of largest submetacentric pair. |
| Karyological information |
| Geographical area of study |
Bracciano, Martignano lakes in Rome and Bolsena lake in Viterbo, Italy. |
| Source of chromosomes |
Cephalic kidney cells. |
| Number of specimens with sex |
43 |
| Diploid chromosome number |
80 |
| Karyotype formula |
12m+4sm+64st/a |
| Fundamental arm number |
- |
| Chromosome length |
- |
| Sex chromosome |
- |
| Chromosome staining/banding/FISH |
Maximum 2 heteromorphic active Ag-NORs detected. CMA3 staining showed presence of upto 8 sites. C-banding showed, in addition to centromeres, that both GC-rich NORs and the AT-rich terminal chromosome regions were C-positive. FISH signals with 45S rDNA probe observed in different chromosome pairs (8 in Bracciano population, 10 in Martignano population and up to 12 in Bolsena population. 5S rDNA hybridized to 3 pairs of homologues chromosomes. Telomeric probe hybridized to telomeres regions. |
| Reference |
Rossi AR, Gornung E (2005). Cytogenetic analysis of three Italian populations of Coregonus lavaretus (Pisces, Salmoniformes) with chromosomal localization of major and minor ribosomal genes, and telomeric repeats. Hereditas, 142: 15-21. |
| Cross Link |