The effects of dominance on mating behavior and paternity in a captive troop of rhesus monkeys (Macaca mulatta).

The effects of social dominance on male mating behavior and paternity in a troop of rhesus monkeys (macaca mulatta) were examined. A wild-caught troop of monkeys, captured in India in 1972, has been monitored in captivity for eight years. Some animals have been culled from this troop, but no new animals have been added except through births.

Estimates of inbreeding in a natural population: a comparison of sampling properties.

The average inbreeding coefficient f of a population can be estimated in several different ways based solely on the genotypic frequencies at a single locus. The means and variances of four different estimates have been compared. While the four estimates are equivalent when there are two alleles, the best estimates when there are three or more alleles are based upon total heterozygosity (Formula: see text) where x and y are the expected and observed number of heterozygotes) and the proportion of alleles that are homozygous (Formula: see text) where k = the number of alleles, aii = the number of AiAi homozygotes, and 2aij = the number of AiAj heterozygotes).

HLA antigens and susceptibility to juvenile diabetes: do additive relative risks imply genetic heterogeneity?

The relative risk of B8/B15 heterozygotes for juvenile-onset diabetes is higher than the risk for people having B8 or B15 alone. This has been cited as evidence for genetic heterogeneity in juvenile diabetes. However, the observed relative risks are compatible with a single susceptibility allele.

The bovine major histocompatibility complex (BoLa): close linkage of the genes controlling serologically defined antigens and mixed lymphocyte reactivity.

Detection of linkage between genetic loci in cattle has been hampered by the lack of large full -sib families. A unique source of full-sib families is now available from embryo transplantation. Lymphocytes from six full-sib families, ranging in size from three to seven siblings, were tested for serologically defined BoLA antigens (BoLA-A).