DNA-based identification of plants and the genomic nature of plant species differences.

Of the five genera tested ( Capurodendron was excluded due to variation in the number of individuals per locus), there was a variable and only partially significant relationship between nucleotide diversity of genes within a genus and the density of SSSNPs in those genes (average correlation coefficient r = 0.269; this was statistically significant in only 3/5 tested datasets: Geonoma r = 0.154 , Inga r = 0.493 , Tsuga r = 0.529; two-sided Wilcoxon rank-sum test, p < 0.001).

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