College of Horticulture Hainan University Haikou 570228 China;
Tropical Crop Germplasm Research Institute Chinese Academy of Tropical Agricultural Sciences Haikou 571101 China;
Tropical Crop Germplasm Research Institute Chinese Academy of Tropical Agricultural Sciences Haikou 571101 China;
Solanaceae; Root-knot nematode; Gene mapping; Molecular marker;