[1] Northeast Forestry Univ, Coll Life Sci, Harbin 150040, Peoples R China
[2] Northeast Forestry Univ, State Key Lab Tree Genet & Breeding, Harbin 150040, Peoples R China
[3] Northeast Agr Univ, Chinese Minist Educ, Key Lab Soybean Biol, Harbin 150030, Peoples R China
[4] Chinese Acad Forestry, Res Inst Forestry, State Key Lab Tree Genet & Breeding, Key Lab Tree Breeding & Cultivat,State Forestry Ad, Beijing 100091, Peoples R China
[5] North Carolina State Univ, Dept Plant & Microbial Biol, Raleigh, NC 27695 USA
[6] North Carolina State Univ, Dept Forestry & Environm Resources, Forest Biotechnol Grp, Raleigh, NC 27695 USA