Genetic diversity analysis and population structure in apricot (Prunus armeniaca L.) grown under north-western himalayas using ISSR markers
| Autor: | Hamed A. El Serehy, Javid Iqbal Mir, Baby Summuna, Zahid Nabi Sheikh, Rafiq Ahmad Shah, Vikas Sharma, Neha Sharma, Fahad A. Al-Misned |
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| Rok vydání: | 2021 |
| Předmět: |
Germplasm
Diversity education.field_of_study Genetic diversity Genotype biology Apricot Population Dendrogram Structure Locus (genetics) biology.organism_classification Prunus armeniaca Genetic divergence Horticulture Original Article Genetic variability Polymorphism General Agricultural and Biological Sciences education |
| Zdroj: | Saudi Journal of Biological Sciences |
| ISSN: | 1319-562X |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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