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Molecular genetic diversity among Iranian Petroselinum crispum (Mill.) Nym. ex A.W. Hill germplasms: an ecological overview

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Abstract

Petroselinum crispum (Mill.) Nym. ex A.W. Hill (Parsley) is a culinary and medicinal vegetable of the family Apiaceae, which has been used by humans since ancient time. A molecular genetic diversity study was conducted on 10 Iranian populations of P. crispum using start codon targeted (SCoT) molecular markers to investigate infraspecific genetic diversity and population structure. The nuclear genomes extraction were performed using the cetyltrimethylammonium bromide (CTAB) protocol, then amplified using 10 SCoT primers. We found a large amount of population genetic differentiation index (GST) and total genetic difference in the pooled populations (HT) among the examined populations, which were supported by HS, NM. Additionally, we detected a significant genetic diversity (PhiPT = 0.755, P = 0.001) among the populations and their individuals by the analysis of molecular variance (AMOVA) test, in which its great proportion was assigned to among populations. We detected the largest amounts of genetic polymorphism in populations 1 and 5, while a reverse condition was observed for population 7. We found four genotype groups among the populations that was similar with phytogeographic mapping. The level of genetic divergence between populations (PhiPT) of each genotype was relatively low. This species produce protandrous florets and cross-pollination plays a significant role in seed production. Therefore, the genetic structure of genotypes must be heterogeneous. In Iran, the genetic structure of all genotypes was nearly homogenous which resulted from a flat rate of gene flow, which agreed with our estimated amount of NM (0.13). We supposed a range of isolation mechanisms including, isolation by distance, isolation by environment, isolation by ecology, and isolation by resistance act as driving forces to create high genetic differentiation among the parsley populations. These genotypes can be used for future genetic and breeding research to develop new cultivars can survive under biotic and abiotic stresses and yield high biomass.

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The collaboration and the assistance provided by personnel at Arak University are highly appreciated.

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Correspondence to Majid Mahdieh.

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Talebi, S.M., Mahdieh, M., Ghorbani, M. et al. Molecular genetic diversity among Iranian Petroselinum crispum (Mill.) Nym. ex A.W. Hill germplasms: an ecological overview. Genet Resour Crop Evol 71, 1989–2001 (2024). https://doi.org/10.1007/s10722-023-01756-9

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  • DOI: https://doi.org/10.1007/s10722-023-01756-9

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