Genetic diversity assessment in Greek Medicago truncatula genotypes using microsatellite markers
2009
Akritidis, P.,CERTH, Thermi (Greece). Inst. of Agrobiotechnology | Mylona, P.V.,NAGREF, Thermi (Greece). Agricultural Research Center of Northern Greece | Tsaftaris, A.S.,CERTH, Thermi (Greece). Inst. of Agrobiotechnology | Polidoros, A.N.,CERTH, Thermi (Greece). Inst. of Agrobiotechnology
We examined the genetic diversity and geographic scale of genotype distribution within the model legume species Medicago truncatula widely distributed in pasture and marginal agricultural lands in Greece and other Mediterranean countries. Thirty one Medicago truncatula and Medicago littorialis accessions were chosen on the basis of their geographical distributions and studied using 9 polymorphic simple sequence repeats (SSR) markers. The number of alleles per locus varied between 3 and 7. A total of 42 alleles were detected with a mean value of 4.66 alleles per locus. Geographic origin was not related with genotypic similarity among accessions. However, there were instances of close genetic relatedness between accessions from neighboring locations in a geographic compartment. In conclusion, the presented data revealed extensive M. truncatula genotype dispersal in Greece pointing to the significance of preserving local genetic resources in their natural environment.
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