EVALUATION GENETIC DIVERSITY OF Pseudotsuga brevifolia W.C.Cheng & L.K.Fu IN SOME NORTHERN MOUNTAINOUS PROVINCES OF VIETNAM USING ISSR MARKERS

Authors

  • Ngo Duc Nhac https://vafs.gov.vn/vn
  • Nguyen Cong Phuong
  • Nguyen Thi Huyen

DOI:

https://doi.org/10.70169/VJFS.1161

Keywords:

Genetic diversity, ISSR marker, molecular marker, Pseudotsuga brevifolia W.C.Cheng & L.K.Fu

Abstract

Pseudotsuga brevifolia W.C.Cheng & L.K.Fu is a species distributed only in high limestone mountains and is classified as an endangered species in the Vietnam Red Book. The assessment of genetic diversity of P. brevifolia is very necessary for the conservation and development of this tree species. To assess the genetic diversity of Pseudotsuga brevifolia, 71 samples collected from Cao Bang, Ha Giang, and Bac Kan provinces were analyzed using seven ISSR markers. For these samples, 62 DNA fragments were amplified, of which 38 were polymorphic (accounting for 61.90%), and the genetic diversity according to Nei (h) of the species was at a medium level with I = 0.317, h = 0.199, and PPB = 85.71%. The genetic diversity according to Nei (h) of the populations ranged from Bac Kan h = 0.143, Cao Bang h = 0.170, to Ha Giang h = 0.175. The total molecular variance (AMOVA) among populations was low (20.68%), while it was high within populations (79.32%). The dendrogram illustrated the genetic relationships among the 71 samples, grouping them into several clusters, with a high genetic similarity between populations ranging from 91.7% to 98.3%. From these analysis results, several options for the species conservation program have been proposed.

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Published

13-10-2025

How to Cite

[1]
Ngo Đức, N. et al. 2025. EVALUATION GENETIC DIVERSITY OF Pseudotsuga brevifolia W.C.Cheng & L.K.Fu IN SOME NORTHERN MOUNTAINOUS PROVINCES OF VIETNAM USING ISSR MARKERS. VIETNAM JOURNAL OF FOREST SCIENCE. (Oct. 2025). DOI:https://doi.org/10.70169/VJFS.1161.

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