GENETIC DIVERSITY OF Cinnamomum balansae Lecomte IN QUANG NINH PROVINCE

Abstract

Cinnamomum balansae Lecomte is an endemic, multi-purpose tree species in Vietnam, with high economic value, so this species is exploited unsustainably. Therefore, assessing the genetic diversity of the existing gene pool of this species is a necessary task to support the development of conservation and development activities of this genetic resource in the future. This study analyzed 20 studied samples collected in 4 localities in Quang Ninh province using 5 ISSR markers to assess the level of genetic diversity of the existing gene pool in the locality. The results of genetic diversity analysis showed that the level of genetic diversity of C. balansae in Quang Ninh is relatively low (the genetic diversity coefficient reaches an average of 0.138) and there is gen flow between the study sites (Nm = 0.3359). Among them, the research samples collected from Ba Che district have a higher level of genetic diversity compared to the three remaining localities. In terms of genetic structure, the samples collected from Ba Che are also relatively separated from the remaining 3 locations. The results of this study provide a scientific basis for the conservation and effective development of C. balansae genetic resources.