Every 4 days1500 μL was transferred into 9.45 mL of fresh medium, a 1/64 dilution that permitted an average of six generations of growth per cycle and a final population size of ~1x10.
For the simulations we considered an average recombination rate 0.60 cM/Mb (Jensen-Seaman et al., 2004 ) and mutation rate of 2 x10−8 per base per generation and estimated an average of three generations per year.
In mice, this requires at least 20 generations (Eisen 2005) and assuming an average of four generations per year, it takes a minimum of 5 years to create a new RIL.
We measured the promoter activity of each sugar system at mid-exponential phase, by averaging the promoter activity over a window of two generations centered at the point of maximal growth rate.
The AA population has been in the US for an average of about five generations and we do not have evidence of major immigration for the current AA generation, so gene flow resulting in HWD in our AA sample is unlikely.
The number of generations involved in creating the inbred stocks varied from 5 to 12. Assuming a minimum of three generations to the last common B73 ancestor before development of the stocks and three generations of maintenance by the seed company and/or the national seed storage laboratory (GRIN) afterward yields an average of 15 generations to the last common ancestor for each centromere.
An average of two to three weeks is required for an egg to develop into an adult, and there may be up to 10 generations each year.
Results represent the average of two experiments.
As a result, college students change majors an average of three times, millennials are the "least engaged generation in the workplace," according to Gallup, and they have a reputation for job-hopping.
A far cry from previous generations, today's working dads who live with their kids spend an average of three hours a day with them.
The relationship between fertility of the two generations is also weakly negative; countries with relatively small average values in either generation tend to have higher correlations, suggesting that the cross-sectional relationship is not associated with high levels of fertility.
