For De Beers the trick is walking a fine line between acknowledging that there's no real difference between the lab-grown products it's shilling and the higher-end stones that it mines without making the jewelry come off as sounding cheap.
However, no comprehensive mapping of differences between the lab- and reference strains has been published to date.
Lab versus wild: Out of 1,400 proximal promoter regions in our analysis, 322 showed TFBS differences between the lab strain BY4741 and the wild strain YPS606, and 379 genes showed differences between the lab strain SK1 and the wild strain UWOPS03-461.4.
It will also be of interest to examine how differences in ADR1 and CAT8 TFBSs contribute to the marked differences between the lab strain BY4741 and the fermentation strain RM11-1a with regards to glucose consumption rate and transition to nonfermentative metabolism (Chang et al. 2008).
Although PS1579 was observed to experience generation times of seven days in the lab at 25°C under food-rich conditions, suggesting approximately fifty-two generations per year, massive environmental differences between the lab and nature (e.g. temperature, food supply type and abundance) almost certainly affect the number of Panagrolaimus generations per year in nature.
In addition, although field parent and laboratory offspring relationships have been used to estimate genetic components of variance, it is not clear how differences between the lab and field environments would affect the genetic estimates in a model as complex as the one employed here.
From these results, we concluded that any effects due to differences between the Labs (arising from extraction procedures, researchers, instrumentation, etc).
For all such binary data, the differences between the No Lab and Lab groups were analyzed using a chi-square test; within-group repeated measure comparisons were completed using a McNemar change test.
Likewise, V1a autoradiography failed to reveal any difference between the HAB and LAB lines in a variety of brain regions critically involved in the regulation of anxiety- and depression-related behaviors, thus further strengthening the concept that events upstream of the receptor contribute to the behavioral phenotype of HAB and LAB mice (Table 3).
The two explanatory variables with the greatest effect sizes (time efficiency and excitement) produced no significant differences between the two lab styles.
One hour before imaging, the culture medium was replaced with L15 phosphate buffered medium (Invitrogen), and the cells were placed on the microscope stage to prevent focus drift due to differences in temperature between the Lab Tek chamber and the objective.
