Longan (Dimocarpus longan Lour.) is originated in south China, which is one of thespecial local fruits, and its variety resource is very abundant. The utilization andclassification of longan germplasm resources were adopted the botany classificationsystem of linnaean or Engler for a long time. There are arguements on the geneticrelationship and classification among the native varieties of Longan for many years,which had made grate trouble in breeding new variety and utilizating resource, as somes...