tailieunhanh - Đặc điểm di truyền quần thể sâm Ngọc Linh (Panax vietnamensis Ha & Grushv.) bằng phương pháp SSR

Sâm Ngọc Linh (Panax vietnamensis Ha & Grushv.) là loài đặc hữu của miền trung Việt Nam, đã được xác định là một trong bốn cây sâm quý nhất trên thế giới. Do khai thác quá mức và mất nơi sống, loài này đang bị đe dọa. | Đặc điểm di truyền quần thể sâm Ngọc Linh (Panax vietnamensis Ha & Grushv.) bằng phương pháp SSR TAP CHI SINH HOC 2020, 42(1): 11–19 DOI: GENETIC CHARACTERISTICS OF Panax vietnamensis Ha & Grushv. POPULATIONS BASED ON SSR Nguyen Thi Hong Mai1, Le Thanh Son2, Nguyen Thi Phuong Trang1,* 1 Institute of Ecology and Biological Resources, VAST, Vietnam 2 National Institute of Medicinal Materials Received 29 June 2019, accepted 10 February 2020 ABSTRACT The results of genetic analysis of two Panax vietnamensis populations, collected in Tac-ngo ginseng garden, Tra Linh commune, Quang Nam Province and Mang ri ginseng garden, Kon Tum Province, showed that the population of ngoc linh ginseng in Quang Nam has higher alen frequency compared to the Ngoc Linh ginseng population in Kon Tum (AR = > AR = ). The population of ngoc linh ginseng in Quang Nam has the expected heterozygous frequency (He) higher than the expected heterozygous frequency of the ginseng population in Kon Tum ( > ). The observed heterozygous frequency (Ho) of the ngoc linh population in Quang Nam was also higher than the observed heterozygous frequency compared to the ngoc linh ginseng population in Kon Tum ( > ). These results demonstrated that both populations of ngoc linh ginseng in Quang Nam and Kon Tum are maintaining high heterozygous frequencies; self-pollination has not affected to the genetic structure of these both populations yet. However, the population of ngoc linh ginseng in Quang Nam showed a higher level of diversity and heterozygous frequency than the ngoc linh ginseng population in Kon Tum. Keywords: Panax vietnamensis, conservation, ginseng, microsatellite. Citation: Nguyen Thi Hong Mai, Le Thanh Son, Nguyen Thi Phuong Trang, 2020. Genetic characteristics of Panax vietnamensis Ha & Grushv. populations based on SSR. Tap chi Sinh hoc (Journal of .