Microchromosomes in the American Red Fox, <i>Vulpes fulva</i>
1972; International Society of Cytology; Volume: 37; Issue: 1 Linguagem: Inglês
10.1508/cytologia.37.1
ISSN1348-7019
Autores Tópico(s)Genetic Mapping and Diversity in Plants and Animals
ResumoStudies of the chromosomes of a domesticated and five wild red foxes, Vulpes fulva, have produced chromosome counts of 35, 36, 37 and 38. Karyotypic analyses revealed that variations in the number of microchromosomes produced this polymorphism; moreover, it is suggested that these microchromosomes may arise from fragmentation of the macrochromosomes. Because it has not been possible to establish a consistent chromosome count for this species, it is further suggested that 2n=34 be used to describe the basic diploid count and that the number of microchromosomes present be added to this figure. Thus, a total chromosome count of 36 would, by the suggested system, be recorded as 2n=34+2m.
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