PARENT-OFFSPRING AND FULL SIB CORRELATIONS UNDER A PARENT-OFFSPRING MATING SYSTEM

Parent-Offspring and Full Sib Correlations under a Parent-Offspring Mating System.

Parent–offspring conflict

Is this soap opera or science? It can be both, but in evolutionary biology it refers to the subtly different ways natural selection acts on genes expressed in parents and their offspring. To give a concrete example, consider a parent with two offspring: other things being equal, the parent is likely to be under natural selection to give equal amounts of food to each of its young. But natural se...

Parent-Offspring Conflict

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Estimation of genetic covariance from joint offspring-parent and sib-sib statistics.

Formulae for calculating the variances and covariances of estimates of genetic variance or covariance from offspring-parent and sib covariance data are presented. The model consists of a one-way classification of families with unequal numbers of offspring, where normally distributed traits x (a parental measure), y and z (offspring measures) are recorded. Procedures for pooling offspring-parent...

Parent-Offspring Correlations in Pedometer-Assessed Physical Activity

BACKGROUND Physical activity is a major component of a healthy lifestyle in youth and adults. To identify determinants of this complex behavior is an important research objective in the process of designing interventions to promote physical activity at population level. In addition to individual determinants, there is evidence documenting familial influences on physical activity. However, the f...