Abstract
In the present study, the extent of inter and intra-population genetic variation was evaluated in Leonurus cardiaca accessions naturally growing in Iran by AFLP and IRAP markers. The fingerprints corresponding to AFLP and IRAP markers revealed high levels of heterozygosity, indicating that L. cardiaca is predominantly an out-crossing species. The average percentage polymorphism was detected as 58% and 90.8% on utilizing AFLP and IRAP data, respectively. Gene diversity values within populations varied 0.14 to 0.20 for AFLP and 0.12 to 0.21 for IRAP. The overall levels of genetic variation present in the L. cardiaca germplasm in Iran were finally determined by combining the AFLP and IRAP datasets to ensure wide genome coverage. The phenogram depicted that the accessions of Dargaz population were genetically distinct from other populations. Based on AFLP and IRAP analysis, it is concluded that L. cardiaca maintains high levels of genetic variation at inter and intra-population level.
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