Figure 4From: Interspecific and interploidal gene flow in Central European Arabidopsis (Brassicaceae)Diversity analyses of Central European Arabidopsis arenosa (white) and A. lyrata (grey). Diploids are hatched, tetraploids are blank. Bars give standard deviation, * gives significance. (a) Gene diversity, Ĥ; (b) Nucleotide diversity, π; and (c) Average number of nucleotide differences, k.Back to article page