Table 1.

Plant species used for this study (checked based on Integrated Taxonomic Information System (ITIS, www.itis.gov)).

Datasets	Taxa	Common names	Scientific names and authorities	Genotypes
Hardwoods	NA	Ash	Fraxinus L.	NA
	NA	Black gum	Nyssa sylvatica Marshall	NA
	NA	Deerberry	Vaccinium stamineum Linneaus	NA
	NA	Leatherwood	Dirca palustris L.	NA
	NA	American elm	Ulmus americana Planch	NA
	NA	Cherrybark oak	Quercus pagoda Raf.	NA
	NA	Red maple	Acer rubrum L.	NA
	NA	Nuttall oak	Quercus texana Buckley	NA
	NA	Post oak	Quercus stellata Wangenh.	NA
	NA	Shagbark hickory	Carya ovata (Mill.) K. Koch	NA
	NA	Shumard oak	Quercus shumardii Buckley	NA
	NA	Swamp chestnut oak	Quercus michauxii Nutt.	NA
	NA	Water oak	Quercus nigra L.	NA
	NA	Willow	Salix spp.	NA
	NA	Willow oak	Quercus phellos L.	NA
	NA	Winged elm	Ulmus alata Michx.	NA
Populus I	D × D	Eastern cottonwood	Populus deltoides × Populus deltoides	106B-1
	D × D	Eastern cottonwood	Populus deltoides × Populus deltoides	110412
	D × D	Eastern cottonwood	Populus deltoides × Populus deltoides	111733
	D × D	Eastern cottonwood	Populus deltoides × Populus deltoides	112107
	D × D	Eastern cottonwood	Populus deltoides × Populus deltoides	113B-3
	D × D	Eastern cottonwood	Populus deltoides × Populus deltoides	120-4
	D × D	Eastern cottonwood	Populus deltoides × Populus deltoides	19
	D × D	Eastern cottonwood	Populus deltoides × Populus deltoides	3-1
	D × D	Eastern cottonwood	Populus deltoides × Populus deltoides	47-5
	D × D	Eastern cottonwood	Populus deltoides × Populus deltoides	6-4
	D × D	Eastern cottonwood	Populus deltoides × Populus deltoides	6-5
	D × D	Eastern cottonwood	Populus deltoides × Populus deltoides	S7C2
	D × D	Eastern cottonwood	Populus deltoides × Populus deltoides	S7C20
	D × D	Eastern cottonwood	Populus deltoides × Populus deltoides	ST66
	D × D	Eastern cottonwood	Populus deltoides × Populus deltoides	ST75