Leaman T, Rowland R, Long S E
Department of Clinical Veterinary Science, University of Bristol, Langford.
Vet Rec. 1999 Jan 2;144(1):9-12. doi: 10.1136/vr.144.1.9.
A questionnaire concerning the coat colour and sex of cats being vaccinated or neutered was sent to 2585 veterinary practices; 393 (15.2 per cent) were returned and information was obtained about 9816 cats. Of 4598 males, 20 were recorded as tortoiseshell (0.43 per cent). The frequency of the orange gene was 19.7 per cent assuming that male tortoiseshell cats had two X chromosomes. The chromosome complement and/or gonadal histology of 14 male tortoiseshell cats is described. Cytogenetic analysis of 11 animals revealed six with a 38,XX/38,XY complement, two with 39,XXY, two with 38,XX, and one with a 38,XY complement.
一份关于接受疫苗接种或绝育的猫猫毛色毛色和性别的猫的调查问卷被发送给了2585家兽医诊所；393份（15.2%）问卷被返还，获取了9816只猫的信息。在4598只雄性猫中，有20只被记录为玳瑁色（0.43%）。假设雄性玳瑁猫有两条X染色体，橙色基因的频率为19.7%。描述了14只雄性玳瑁猫的染色体组成和/或性腺组织学。对11只动物的细胞遗传学分析显示，6只具有38,XX/38,XY组成，2只具有39,XXY，2只具有38,XX，1只具有38,XY组成。
