Size, growth rate, and multiple-locus heterozygosity in the land snail (Otala lactea)

Article Abstract:

The relationship between multiple-locus heterozygosity and growth in the land snail, Otala lactea, was examined. Two environments, one high-density and the other low density, were used in rearing the animals. Rearing environment did not affect size-adjusted weight gain. Overall observed heterozygosity was 0.44, with estimates ranging from 2.5% for four loci to 41% for two loci. There were no significant relationships observed between growth parameters and single- or multiple-locus heterozygosity.

Physiological aspects, Snails

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Heterozygosity of F2 from two segregating populations

Article Abstract:

The average inbreeding coefficient and heterozygosity of an F2 generation from two genetically related segregating populations can be predicted using exact formulas derived. The heterozygosity of the F2 is one-half of the heterozygosity of F1 plus one-half of the mean heterozygosity of the two parental populations when population sizes are adequately large. Inferring the heterozygosity of the F1 is useful in studying reticulate evolution.

Statistics, Genetics

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Can a simple algebraic analysis predict markers-genome heterozygosity correlations?

Article Abstract:

A study indicates that genome-wide heterozygosity results from individual pedigree in real populations and is not a random product. Correlations between markers and genome-wide heterozygosity are expected to be higher than those predicted from algebraic analyses.

Science & research, Spain

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