. 2020 Jul 22;11:1103. doi: 10.3389/fpls.2020.01103

Table 3.

Summary statistics comparing regions displaying extreme genetic differentiation with the rest of the genomic regions in both P. tremula and P. davidiana (the mean ± standard deviation values are shown).

Parameters	Species	Regions diplaying high differentiation	Regions diplaying low differentiation	Background
θ_π	P. tremula	0.0075 (± 0.0047)^***	0.0355 (± 0.0165)^***	0.0146 (± 0.0078)
	P. davidiana	0.0093 (± 0.0055)^***	0.0357 (± 0.0162)^***	0.0162 (± 0.0078)
Tajima’s D	P. tremula	−0.9286 (± 0.5202)^***	−0.0661 (± 0.5328)^***	−0.2995 (± 0.5083)
	P. davidiana	−1.6588 (± 0.4178)^***	−0.6058 (± 0.5533)^***	−1.1554 (± 0.4561)
Fay & Wu’s H	P. tremula	−0.6800 (± 0.3885)^***	−0.1172 (± 0.2596)^***	−0.3985 (± 0.2795)
	P. davidiana	−0.5153 (± 0.3024)^***	−0.1145 (± 0.2452)^***	−0.3223 (± 0.2195)
r²	P. tremula	0.2885 (± 0.1405)^***	0.1986 (± 0.0965)	0.2115 (± 0.1205)
	P. davidiana	0.2482 (± 0.1372)^***	0.1663 (± 0.0958)^*	0.1578 (± 0.1110)
ρ/θ_π	P. tremula	0.1627 (± 0.2634)^***	0.1140 (± 0.1292)^**	0.2396 (± 0.3533)
	P. davidiana	0.2596 (± 0.3536)^***	0.2088 (± 0.2389)^**	0.5385 (± 0.5223)
Fixed (%)	P. tremula	0.0569 (± 0.0326)^***	~0 (± 0.0000)^***	0.0056 (± 0.0098)
	P. davidiana	0.0432 (± 0.0292)^***	~0 (± 0.0000)^***	0.0036 (± 0.0075)
Shared (%)		0.0789 (± 0.0339)^***	0.3465 (± 0.0937)^***	0.1679 (± 0.0628)
F_ST		0.7301 (± 0.0439)^***	0.1123 (± 0.0182)^***	0.3805 (± 0.1215)
d_xy		0.3023 (± 0.0047)^***	0.0402 (± 0.0181)^***	0.0250 (± 0.0112)
RND		0.7312 (± 0.2015)^***	0.6885 (± 0.1972)^***	0.5517 (± 0.1432)

Asterisks designate significant differences between the regions displaying exceptionally genetic differentiation and the rest of genomic regions by Mann–Whitney U test (*P-value <0.05; **P-value <1e−4; ***P-value <2.2e−16).