GENETIC PROFILES FROM COAT GENES OF NATURAL BALEARIC CAT POPULATIONS - AN EASTERN MEDITERRANEAN AND NORTH-AFRICAN ORIGIN

被引:27
作者
RUIZGARCIA, M
机构
关键词
CAT; POPULATION GENETICS; COAT COLOR GENES; GENETIC HETEROGENEITY; GENE FLOW;
D O I
10.1051/gse:19940104
中图分类号
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号
0905 ;
摘要
A detailed study of 7 cat populations (Felis 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: 0 (Orange; sex-linked allele); a (Non-agouti); t(b) (Blotched tabby); d (Dilution); 1 (Long hair); S (White spotting); W (Dominant white); c(s) (Siamese); and M (Manx). The range of frequency values for each of the loci studied is the following: O: 0.16-0.30; a: 0.72-0.87; t(b): 0.0-0.35; d: 0.14-0.44; 1: 0.0-0.27; S: 0.14-0.30; W: 0.0-0.017; c(s): 0.12-0.31; M: 0.0-0.026. 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 t(b)) even show a clinal disposition. An analysis of the contribution of each locus to the gene diversity observed between the Iberian and Balearic cat populations shows that the largest part of this diversity is due to the t(b) allele. Generally speaking, all the genetic profiles analyzed show stronger genetic influences of eastern Mediterranean and North-African cat populations than of western European cat populations. However, of the 7 cat populations studied, that of Palma shows a slightly stronger influence of western European cat populations while the central and eastern populations of Minorca (Mahon, Villacarlos and particularly Mercadal and Alayor) seem to have followed a characteristically different evolutionary path caused by founder effect, gene drift and/or different gene flow from other places around the Mediterranean sea which have not yet been thoroughly studied. The possible origin of other species of mammals and the historical and commercial movements of the human beings in these islands might be parallel to the model proposed for the cat populations of the Balearic islands.
引用
收藏
页码:39 / 64
页数:26
相关论文
共 79 条
[11]   GENETIC-ANALYSIS OF PARIAH CAT POPULATIONS FROM THE SOUTHEASTERN UNITED-STATES [J].
BROWN, CJ ;
BRISBIN, IL .
JOURNAL OF HEREDITY, 1983, 74 (05) :344-348
[12]   PHYLOGENETIC ANALYSIS - MODELS AND ESTIMATION PROCEDURES [J].
CAVALLISFORZA, LL ;
EDWARDS, AWF .
EVOLUTION, 1967, 21 (03) :550-+
[13]  
CHESSER RK, 1983, EVOLUTION, V37, P320, DOI 10.1111/j.1558-5646.1983.tb05542.x
[14]   GROUP SELECTION FOR A POLYGENIC BEHAVIORAL TRAIT - ESTIMATING THE DEGREE OF POPULATION SUBDIVISION [J].
CROW, JF ;
AOKI, K .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA-BIOLOGICAL SCIENCES, 1984, 81 (19) :6073-6077
[15]   DISPERSAL, GENE FLOW, AND ALLELIC DIVERSITY BETWEEN LOCAL-POPULATIONS OF THOMOMYS-BOTTAE POCKET GOPHERS IN THE COASTAL RANGES OF CALIFORNIA [J].
DALY, JC ;
PATTON, JL .
EVOLUTION, 1990, 44 (05) :1283-1294
[16]  
DREUX P, 1975, Annales de Genetique et de Selection Animale, V7, P23, DOI 10.1186/1297-9686-7-1-23
[17]  
Dunn G., 1982, INTRO MATH TAXONOMY
[18]   ESTIMATING PHYLOGENETIC TREES FROM DISTANCE MATRICES [J].
FARRIS, JS .
AMERICAN NATURALIST, 1972, 106 (951) :645-&
[19]   CONSTRUCTION OF PHYLOGENETIC TREES [J].
FITCH, WM ;
MARGOLIASH, E .
SCIENCE, 1967, 155 (3760) :279-+
[20]  
Frechkop S., 1963, Bull Inst Sci nat Belg, V39, P1