| Value |
102
chromosomes
|
| Organism |
Red vizcacha rat Tympanoctomys barrerae |
| Reference |
Gallardo MH, González CA, Cebrián I. Molecular cytogenetics and allotetraploidy in the red vizcacha rat, Tympanoctomys barrerae (Rodentia, Octodontidae). Genomics. 2006 Aug88(2):214-21. p.214 left column bottom paragraphPubMed ID16580173
|
| Primary Source |
[6] M.H. Gallardo, J.W. Bickham, R.L. Honeycutt, R.A. Ojeda, N. Köhler, Discovery of tetraploidy in a mammal, Nature 401 (1999) 341. [7] M.H. Gallardo, et al., Whole-genome duplications in South American desert rodents (Octodontidae), Biol. J. Linn. Soc. 82 (2004) 443–451.PubMed ID10517628
|
| Method |
Fluorescence in situ hybridization and microspreading |
| Comments |
"The discovery of tetraploidy in the red vizcacha rat,
Tympanoctomys barrerae (2C = 16.80 ± 0.50 pg DNA)
overturned this tenet [of the absence of polyploidy in mammals, primary source 6] but the origin of its completely
biarmed, 102-chromosome karyotype remained obscure, since
no combination of diploid chromosome numbers in extant
family members could explain the derivation of its complement
[primary source 7]." |
| Entered by |
Uri M |
| ID |
110010 |