Do the same genes or biological pathways contribute to population structure?
The hypothesis of shared biological process bridging the population structure in genetics and epigenetics, suggested by our results, needs a detailed molecular level investigation.
Population structure in biological data has also been addressed in the area of GWA studies.
Since these cultivars are breeding lines and are therefore not appropriate for biological classification such as by population structure analysis (additional file 4), we roughly classified them into three groups based on the year in which they were developed.
Auer and Doerge [ 30] proposed a Two-Stage Poisson Model for RNA-Seq data analysis, based upon the argument that the over-dispersion is most likely caused by within group variation in expression if the experiment includes independent biological replicates without a significant population structure.
Soil biota is responsible for the majority of ecosystem functions in soil, in particular carbon transformations, nutrient cycling, soil structure maintenance, and biological population regulation.
The obtained PLMVd isolates were subjected to population structure analyses and biological assays to evaluate their pathogenicity on peach seedlings in an effort to elucidate the relationship between the PLMVd and the symptoms observed on peach trees in China.
The stage structure of the biological population is simply the whole life course of the biological population consisting of some non-overlapping stages [1].
Because the range of FST is originally defined between 0 and 1 [ 49], negative FST values that do not have a biological interpretation were set to 0. Population structure was analyzed using the Maximum Likelihood approach implemented in ADMIXTURE v 1.20 [ 50] and the above- mentioned 14,202 SNPs of low LD extents.
Regardless, the question remains whether one is actually able to sample biological populations correctly, and if hybrid contribution represents true population structure.
