The chromosome complement ofAcomys spp. (Rodentia, Muridae) from Oursi, Burkina Faso—the ancestral karyotype of thecahirinus-dimidiatus group?

Autor:	M. Tranier, Bruno Sicard, V. Volobouev, J. C. Gautun
Rok vydání:	1996
Předmět:	Male Genetics biology Chromosome Chromosomal translocation Karyotype Classification biology.organism_classification Biological Evolution Chromosomes Translocation Genetic Homology (biology) Chromosome Banding Muridae Karyotyping Burkina Faso Centromere Animals Female
Zdroj:	Chromosome Research. 4:526-530
ISSN:	1573-6849 0967-3849
Popis:	We present here data on chromosome banding analysis (R- and C-bands) of Acomys sp. (Rodentia, Muridae) from Oursi, Burkina Faso, characterized by 2n = FN = 68 and comparison of its banding patterns with those of Acomys dimidiatus from Saudi Arabia (2n = 38, FN = 70), studied previously. The study revealed complete homology between acrocentric chromosomes of Acomys sp. and chromosome arms of 16 pairs of metacentric and two pairs of acrocentric chromosomes of A. dimidiatus. In addition to monobrachial homology, one tandem translocation accompanied by a centromeric shift was identified in the karyotype of the latter species. The data obtained show that karyotypes of all the species of the Acomys cahirinus-dimidiatus group studied previously may be derived from that of Acomys sp. from Oursl by means of numerous non-homologous Rb translocations and 1-2 tandem transiocations, and thus its karyotype may be considered as ancestral for the cahirinus-dimidiatus group.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::36aa1839b9a7261a5fb3140ac89ee175 https://doi.org/10.1007/bf02261780 Zobrazit plný text záznamu Full text from SpringerLink