THE EVOLUTION OF CARIBBEAN JUNIPERUS (CUPRESSACEAE): TERPENOIDS, RAPDS AND DNA SNPs DATA
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چکیده
SNPs from nrDNA and trnC-trnD cp DNA for the Caribbean junipers have provided additional insight into the evolution of this group of smooth leaf margined junipers. Comparing leaf terpenoids, RAPDS and SNPs from nrDNA and trnC-trnD cp DNA show that each data set reveals different facets of the relationships. In general, the data sets support four major groups: Juniperus barbadensis lucayana; J. bermudiana; J. gracilior ekmanii urbaniana; J. saxicola; J. virginiana silicicola. Based on the concordance of these data and morphology, the Caribbean junipers are treated as four species, three of these having varieties: J. barbadensis, J. barbadensis var. lucayana, J. bermudiana, J. gracilior, J. gracilior var. ekmanii, J. gracilior var. urbaniana, J. saxicola, J. virginiana and J. virginiana var. silicicola. The evolutionary colonization pathways of the Caribbean junipers are discussed.
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