Chromosomal aberrations in a population of ground squirrels.
Chromosomes were analyzed from a population of Spermophilus beldingi that included an adult female and three juveniles from the same burrow. All animals had a diploid number of 30. The adult and a juvenile female from the burrow had identical aberrant karyotypes containing an unpaired submetacentric and a minute metacentric chromosome. A familial aberration involving an X chromosome, without phenotypic alteration, is most probable.
D000818:Animals; D002869:Chromosome Aberrations / Q000662:veterinary*; D025063:Chromosome Disorders; D066298:In Vitro Techniques; D007621:Karyotyping; D012377:Rodentia; D012728:Sex Chromatin