Fig. 4
From: Distribution of the DNA transposon family, Pokey in the Daphnia pulex species complex
Haploid 18S and 28S rRNA gene number in isolates from the Daphnia pulex complex. * means are significantly different at the 5 % level after sequential Bonferroni correction. 18S = 18S rRNA genes, 28S = 28S rRNA genes. Each isolate is identified by a 2 or 3-letter lineage code followed by x.y, where x is the population and y is the isolate. NA = North America, EU = Europe