PARTIAL INBREEDING: EQUILIBRIUM HETEROZYGOSITY AND THE HETEROZYGOSITY PARADOX
نویسندگان
چکیده
منابع مشابه
Heterozygosity and Genetic Distance
In the mid-1960s protein electrophoresis revolutionized the study of population genetics and evolution. This technique revealed an extensive amount of genetic polymorphism existing in natural populations and, at the same time, provided a powerful tool to examine the evolutionary relationships of closely related species.1’2 In 1972 I developed a statistical method by which one can measure the ge...
متن کاملInbreeding and purging at the genomic Level: the Chillingham cattle reveal extensive, non-random SNP heterozygosity.
Local breeds of livestock are of conservation significance as components of global biodiversity and as reservoirs of genetic variation relevant to the future sustainability of agriculture. One such rare historic breed, the Chillingham cattle of northern England, has a 350-year history of isolation and inbreeding yet shows no diminution of viability or fertility. The Chillingham cattle have not ...
متن کاملInbreeding coefficient and heterozygosity-fitness correlations in unhatched and hatched song sparrow nestmates.
Heterozygosity-fitness correlations use molecular measures of heterozygosity as proxy estimates of individual inbreeding coefficients (f) to examine relationships between inbreeding and fitness traits. Heterozygosity-fitness correlations partly depend on the assumption that individual heterozygosity and f are strongly and negatively correlated. Although theory predicts that this relationship wi...
متن کاملEffects of inbreeding and heterozygosity on preweaning traits in a closed population of Herefords under selection.
Records of five inbred lines at the Livestock and Range Research Laboratory were used to evaluate effects of inbreeding and heterozygosity on preweaning traits. Members of each line were descendants of a single founder Hereford bull. A total of 8,065 records of birth weight and 7,380 records of preweaning daily gain and weaning weight were analyzed by derivative-free REML using a model that inc...
متن کاملDecline in heterozygosity under full-sib and double first-cousin inbreeding in Drosophila melanogaster.
The effects of inbreeding on heterozygosities and reproductive fitness were determined by carrying out full-sib and double first-cousin inbreeding in Drosophila melanogaster populations for up to 18 generations. Parents were scored each generation for five or six polymorphic enzyme loci, and progeny numbers per pair were recorded. Inbreeding depression, in the form of significant reductions in ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Evolution
سال: 1986
ISSN: 0014-3820
DOI: 10.1111/j.1558-5646.1986.tb00545.x