Non-parametric Mann–Whitney U test was used to test the variations in each trace element from fish otoliths (dependent variables), regarding the wild or farm origin of studied fish species (independent factors).
In fact, we demonstrated that small panels of such SNPs can successfully reproduce the structure of a dataset as identified by PCA, without any prior knowledge or hypothesis about on the origin of studied individuals or artificial assignment of individuals to pre-defined clusters [8], [9].
The user can restrict the search by gene or allele, country of origin of studied samples, continent of origin of studied samples or studied disease.
The prevalence of BRCA1 and BRCA2 mutations in Spain is heterogeneous and varies according to geographical origin of studied families.
Using appropriate statistical tests we investigated whether there was an improvement in reporting quality since the introduction of the STARD checklist, whether a correlation existed between study sample size, country of origin of study and reporting quality.
In addition, lack of well-defined cellular characteristics and differences in the origin of study material (for example, donor age, IVD degeneration status) underlies experimental variability and thus low reproducibility.
A possible explanation for this contradiction is the different geographic origin of studied individuals, with the South Sumatran samples of Tosi and Coke [ 19] clustering with Sundaland sequences and our North Sumatran samples clustering with mainland sequences.
Understanding the formation of biogenic molecules in abiotic conditions is a prerequisite in the origin-of-life studies.
