Abstract
In this study, the genetic diversity of 15 Turkish natural Capparis populations was screened using the randomly amplified polymorphic DNA analysis (RAPD) technique. Ten RAPD primers produced 98 loci, 73 of which were polymorphic. The binary RAPD data were computed using the POPGENE (version 1.31), a genetic data analysis software program. According to genetic diversity analysis at locus level, the total genetic diversity (H T) and genetic diversity within population (H s) were detected as 0.16 and 0.12, respectively. The genetic differentiation (G ST) and gene flow (N m) between populations were observed as 0.22 and 1.79, respectively. The mean number of allele per locus (n a), the mean number of effective allele (n ea), and the mean value of genetic diversity (H e) were determined as 2, 1.20, and 0.16, respectively. According to Pearson’s correlation analysis, the mean number of allele had a strong negative correlation with wind and a strong positive correlation with rain. According to multiple regression analysis, eco-geographical factors had a significant effect on the mean number of allele, the mean number of effective allele, and the mean value of genetic diversity. The principal component analysis revealed 87.42 % of total genetic variation. The principal coordinate analysis displayed the separation of population according to genetic distances based on dissimilarities matrix values on a scattered plot graph. Five different varieties, Capparis spinosa L. var. spinosa, var aegyptia and var. canescens, and Capparis ovata Desf. var. palaestina, and var. herbacea were identified in this study. Intermediate forms of plants were observed among the specimens.
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Acknowledgments
This is the master thesis project of Aslı Kara and supported by a grant, which was provided by the Scientific Research Projects Department (BAP) of Hitit University with project number of FEF01.10.004. We are grateful for the collaboration of the General Directorate of Agricultural Research and Policy unit of the Republic of Turkey, Ministry of Food, Agriculture, and Livestock for providing technical assistance for field studies and special thanks to Dr. Fetullah Tekin for his contribution in the collection of Capparis seeds with us. We are also thankful to Prof. Dr. Şinasi Yıldırımlı from Hacettepe University for contribution to identification of plants according to Hacettepe University Herbarium (HUB) material. We are also giving special thanks to Dr. Silvio Fici from University of Palermo in Italy for his great contribution to improvement of this manuscript.
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Özbek, Ö., Kara, A. Genetic variation in natural populations of Capparis from Turkey, as revealed by RAPD analysis. Plant Syst Evol 299, 1911–1933 (2013). https://doi.org/10.1007/s00606-013-0848-0
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DOI: https://doi.org/10.1007/s00606-013-0848-0