Distribution of the DNA transposon family, Pokey in the Daphnia pulex species complex

Table 2 Correlation between haploid rPokey family and rRNA gene number in isolates from five lineages of the Daphnia pulex complex

lineage	X-axis^c	Y-axis^c	slope	y-intercept	R²	p-value*	Figure
NA D. pulex ^a	18S	28S	0.920	31.88	0.937	6.3 x 10 ⁻¹⁶	Additional file 2: Figure S1
four lineages^b	18S	28S	1.19	23.39	0.873	4.9 x 10 ⁻⁹	Additional file 2: Figure S1
NA D. pulex	28S	rPokey family	−0.008	4.60	0.035	0.361	Additional file 2: Figure S2
four lineages	28S	rPokey family	0.014	6.44	0.026	0.51	Additional file 2: Figure S2

^aThis analysis is based on 26 isolates
^bThis analysis is based on 19 isolates including D. arenata (4), EU D. pulex (8), and NA (5) and EU (2) D. pulicaria
^c18S = 18S rRNA genes, 28S = 28S rRNA genes, rPokey family = Pokey plus mPok inserted in 28S = [rPokeyA + rPokeyB + rmPok1 + rmPok2]
*p-values < 0.05 are indicated in bold font

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