[1] Beijing Acad Agr & Forestry Sci, Key Lab Biol & Genet Improvement Hort Crops North, Beijing Key Lab Vegetable Germplasm Improvement, Beijing Vegetable Res Ctr,Natl Engn Res Ctr Vegeta, Beijing 100097, Peoples R China
[2] Nanjing Agr Univ, Coll Hort, State Key Lab Crop Genet & Germplasm Enhancement &, Nanjing 210095, Peoples R China