To test whether phylogenetic relatedness of our data instances artificially inflates model performance reported by cross-validation, we reduced the original data set by allowing only one instance (randomly chosen) for each species.
The intraclass correlation coefficient (ICC) is a measure of the relatedness of clustered data [ 29].
Random effects (measures of variation, which indicate the relatedness of clustered data) were expressed as neighbourhood-level variance with standard errors (SE).
The ICC is a measure of the relatedness of clustered data by comparing the variance within clusters with the variance between clusters.
This clustering revealed the relatedness of the various data.
In our approach, we include all wild relatives of the crop without regard to relatedness to cultivated species, weighting them equally, with the assumption that a wide range of taxa are potentially useful to provide genes for crop improvement [11], recognizing the lack of data on relatedness.
Like MPD and MNTD, PSV and PSC reveal phylogenetic relatedness of species in a data set, but to calculate PSV and PSC, all branch lengths are proportioned such that the total length of all branches from the root to each species tip equals 1 (Helmus et al., 2007).
Ultimately, we propose a standardized method for the analysis of genetic relatedness data in polyploid species to be used as a simple approach to support practical breeding activities.
MLST was superior to the other techniques in terms of discriminatory power, concordance with epidemiological data, and quantitative information regarding relatedness of isolates [ 9].
In the analyses of data on inter-individual distances both relatedness and sex was treated as fixed factors.
