Genetic diversity analysis and population structure in apricot (Prunus armeniaca L.) grown under north-western himalayas using ISSR markers |
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Authors: | Zahid Nabi Sheikh Vikas Sharma Rafiq Ahmad Shah Neha Sharma Baby Summuna Fahad A. Al-Misned Hamed A. El- Serehy Javid I. Mir |
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Affiliation: | 1. Division of Biochemistry, Sher-e-Kashmir University of Agricultural Sciences and Technology, Jammu 180009, J&K, India;2. Ambri Apple Research Center, Sher-e-Kashmir University of Agricultural Sciences and Technology, Kashmir 190025, J&K, India;3. Division of Plant Pathology, Sher-e-Kashmir University of Agricultural Sciences and Technology, Kashmir, J&K, India;4. Department of Zoology, College of Science, King Saud University, Riyadh 1451, Saudi Arabia;5. Indian Council of Agricultural and Research Central Institute of Temperate Horticulture, Old Airport Road, Rangreth, Srinagar 190007, J&K, India |
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Abstract: | Investigation of genetic variability and population relationship of 50 accessions of the apricot (Prunus armeniaca L.) was carried out using ISSR markers. The results revealed that the number of alleles per locus varied from 4 to 8 with a mean value of 6.75, and the mean effective number of alleles (Ne) per locus was 1.54. Similarly, the polymorphic information content (PIC) values ranged from 0.464 to 0.424, with a mean value of 0.424. The mean heterozygosity, marker index, resolving power, and effective multiplex ratio (EMR) ranged from 0.001 to 0.002, 0.01–0.06, 1.76–3.84, and 1–4.12. The dendrogram clustered genotypes into two main clades based on their origins. The population structure revealed two sub-populations with some admixtures. The average expected heterozygosity and population differentiation within two sub-populations was 0.1428 and 0.216, respectively. The results outcome reveals that the four ISSR markers comprehensively separated the indigenous germplasm from the exotic germplasm. The genetic divergence within indigenous genotypes and exotic genotypes could allow for future insights into apricot breeding programs. |
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Keywords: | Diversity Apricot Polymorphism Genotype Structure Population |
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