Systematics of multi-seeded eastern hemisphere Juniperus based on leaf essential oils and RAPD DNA fingerprinting

摘要

The composition of the leaf essential oils of 15 taxa of the multi-seeded Juniperus in sect. Sabina from the eastern hemisphere are reported and compared. The volatile leaf oil compositions for these Juniperus species are presented. In addition, DNAfingerprinting revealed similar patterns among these species. Based on these data, J. seravschanica is treated as J. turcomanica var. seravschanica comb. nov., and J. talassica is recognized as J. semiglobosa var. talassica. These data also support thecontinued recognition of J. jarkendensis as a distinct species. Juniperus sabina var. erectopatens was found to be very distinct in both its terpenoids and RAPDs and is recognized as a distinct species, J. erectopatens stat nov. The correct name for theBalochistan, Pakistan juniper is J. turcomanica var. seravschanica, not J. excelsa or J. excelsa ssp. polycarpos. In addition, systematic and evolutionary relationships are discussed.