GENETIC CHARACTERIZATION OF RELICT ENDEMIC LIQUIDAMBAR ORIENTALIS (ALTINGIACEAE) POPULATIONS

Authors : Ömer Yüzer, Alper Tonguç, Ersin Doğaç

Pages : 42-50

Doi:10.22531/muglajsci.1419958

View : 32 | Download : 44

Publication Date : 2024-06-30

Article Type : Research

Abstract :Liquidambar orientalis, a relict endemic species, is distributed in the south-west of Turkey. The natural spread areas of the species have been decreasing since the early 1900s. This poses a great threat to the future and genetic diversity of the species. In this study, the genetic diversity of a total of 190 individuals in ten populations was examined with ten polymorphic ISSR primers. Data analysis was performed using POPGENE ver. 1.32 and GenAlEx 6.503 softwares. According to the results of the analysis, a total of 271 loci were identified. For the ten populations, the rate of polymorphic loci ranged from 21.03% to 34.69%. The mean number of observed alleles (Na) and mean number of effective alleles (Ne) were found as 1.98 ± 0.13 and 1.47 ± 24 0.37, respectively. Nei\'s genetic diversity values (h) ranged from 0.07 ± 0.15 to 0.12 ± 0.18. According to the results of Molecular Analysis of Variance (AMOVA) and POPGENE ver. 1.32 analysis, it was determined that the main contribution to the genetic variance originated from among the populations. In addition, the gene flow level (NM) was found to be low with a value of 0.27 per generation.
Keywords : Genetik Çeşitlilik, ISSR Markörü, Liquidambar orientalis, Muğla, Polimorfizm