If you have data on three generations of a family and plug in all three, you can see how a particular set of genes, like the genes for circadian rhythm, were passed down.
Since commonly available pedigree data usually consist of three generations and to account for the age and gender difference, the distributions of the measurements are divided into six groups in the following order: first generation male, first generation female, second generation male, second generation female, third generation male and third generation female.
The N e of the hatchery-produced population, a likely contributor of offspring to our observed data, was also relatively large for each of four generations since the hatchery program began (N e = 100; unpublished data).
A total of five generations of phenotypic data (generation 101 - 105) were created and used in breeding value estimation (10,000 animals in total).
The aim of this study was to use cohort data from three generations of one family to examine the relative maternal and paternal associations with offspring body mass index and how these associations compare with family height to demonstrate evidence of genetic or environmental cross-generational transmission.
Our data contain three generations of pedigree data for four geographically separate rural parishes from the south-west archipelago and from the mainland (Hiittinen, Kustavi, Rymättylä, and Ikaalinen).
The advantages of this study are the prospective design with BMI information collected prior to pregnancy and in early childhood, in addition to data from three generations of one family.
A more detailed analysis of geno and phenotypic data over three generations is warranted to understand the nature of this maternal-offspring relationship.
In this study we analyze how fertility outcomes are related to the previous time-dependent parity-progression fertility intentions using the data of three waves of Russian Generations and Gender Surveys (2004, 2007 and 2011).
Because of a lack of longitudinal data spanning two generations, only a limited number of studies on intergenerational earnings mobility in Korea have been done.
