Table 4. Levels of nucleotide diversity and LD pattern reported in the literature for several plant species.

Species	Population type	Number of genes	Mean nucleotide diversity π	s.d. of π	LD pattern	Reference
Angiosperms
Arabidopsis thaliana	Undomesticated	334	0.0059 to 0.0081	NAa	LD remains over 10 kb	Schmid et al. (2005)
Boechera stricta	Undomesticated	86	0.0030	NAa	r2=0.66	Song et al. (2009)
Solanum lycopersicum	Domesticated	50	0.00139	0.00176	Almost no LD decay, Plateau at r2>0.6	Labate et al. (2009)
Oryza sativa (wild rice)	Undomesticated	10	0.00637	0.00516	Mean r2=0.155	Zhu et al. (2007)
O. sativa (cultivated rice)	Domesticated	10	0.00188	0.00276	Mean r2=0.368	Zhu et al. (2007)
Persea americana	Undomesticated	4	0.00658	0.00398	Half-decay within 1 kb	Chen et al. (2008)
Populus tremula	Undomesticated	77	0.0042	NAa	r2< 0.1 within 100 bp	Ingvarsson (2008)
Populus balsamifera	Undomesticated	74	NAa	NAa	Mean r2=0.25	Stacey Thompson, personal communication
Zea mays	Domesticated	21	0.0096b	0.0032b	r2=0.15 at 100 bp	Tenaillon et al. (2001)
Conifers (Gymnosperms)
Picea abies	Undomesticated	22	0.00208	0.00176	Mean r2=0.24	Heuertz et al. (2006)
Picea glauca	Undomesticated	105	0.0043	0.0032	Mean r2=0.19	This study
Picea likiangensis  Picea purpurea  Picea wilsonii	Undomesticated Undomesticated Undomesticated	16 14 14	0.00542 0.00615 0.00581	NAa NAa NAa	Mean r2=0.29 from merged data of P. likiangensis, P. purpurea and P. wilsonii	Li et al. (2010) Li et al. (2010) Li et al. (2010)
Pinus pinaster	Undomesticated	8	0.00241	0.00259	NAa	Pot et al. (2005)
Pinus sylvestris	Undomesticated	16	0.00323	0.00378	Mean r2=0.21	Pyhäjärvi et al. (2007)
P. sylvestris	Undomesticated	14	0.0060	0.0057	NAa	Wachowiak et al. (2009)
Pinus taeda	Undomesticated	18	0.00507	0.00359	Mean r2=0.30	González-Martínez et al. (2006b)
Pseudostuga menziesii var. menziesii	Undomesticated	121	0.00435	0.00358	Mean r2=0.38	Eckert et al. (2009a)

Abbreviations: LD, linkage disequilibrium; NA, not applicable;

^aNot available.

^bValue for mean Watterson's θ.