TAILIEUCHUNG - Báo cáo sinh học: " Genetic profiles from coat genes of natural Balearic cat populations: an eastern Mediterranean and North-African origin"

Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí sinh học Journal of Biology đề tài: Genetic profiles from coat genes of natural Balearic cat populations: an eastern Mediterranean and North-African origin | Genet Sei Evol 1994 26 39-64 Elsevier INRA 39 Original article Genetic profiles from coat genes of natural Balearic cat populations an eastern Mediterranean and North-African origin M Ruiz-Garcia1 2 1 Instituto de Genetica Universidad de Los Andes Calle 18 Carrera IE Bogota DC Colombia 2 CIGEEM Avd Virgen Montserrat 207 F la. Barcelona 08026 Spain Received 6 November 1991 accepted 6 August 1993 Summary - A detailed study of 7 cat populations Fells Silvestris catus in the 3 principal Balearic islands has been carried out. These populations are Mahon 474 cats Villacarlos 226 cats Mercadal and Alayor 104 cats and Ciudadela 510 cats in Minorca Palma Majorca 475 cats in Majorca and Ibiza city 210 cats and San Antonio 63 cats in Ibiza. The gene frequencies derived from the phenotypic frequencies of a number of loci coding for coat colour and pattern hair length and one skeleton anomaly were studied with the following implied mutant allele o Orange sex-linked allele a Non-agouti tb Blotched tabby d Dilution I Long hair s White spotting w Dominant white cs Siamese and M Manx . The range of frequency values for each of the loci studied is the following o- a t6 d 44 Í 0 S W cs M . In some populations in Minorca a significant excess of homozygotes was detected for the o locus which might be due to the influence of some evolutionary agent. Though the genetic heterogeneity of the Balearic cat populations is substantially lower than that observed for other island mammals and the theoretical gene flow between these Balearic cat populations is noticeably stronger than that observed for other populations of mammals in these islands as well as in other islands there is a statistically significant genetic heterogeneity between most of the loci studied and between the genetic profiles of the 7 cat populations. Some alleles d s w and tb even show a clinal disposition. An analysis of the contribution of .

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