01963nas a2200205   4500008004100000020004600041245010100087210006900188250001500257260000800272300001100280490000700291520124600298100001701544700001401561700001701575700001701592700001701609856013101626       2012                        eng d  a1095-9513 (Electronic)1055-7903 (Linking)00aPhylogenetic relationships in Myrceugenia (Myrtaceae) based on plastid and nuclear DNA sequences0 aPhylogenetic relationships in Myrceugenia Myrtaceae based on pla  a2011/12/14  cFeb  a764-760 v623 aMyrceugenia is a genus endemic to South America with a disjunct distribution: 12 species occurring mainly in central Chile and approximately 25 in southeastern Brazil. Relationships are reconstructed within Myrceugenia from four plastid markers (partial trnK-matK, rpl32-trnL, trnQ-5'rps16 and rpl16) and two ribosomal nuclear regions (ETS and ITS) using maximum parsimony and Bayesian analyses. Relationships inferred previously from morphological data are not completely consistent with those from molecular data. All molecular analyses support the hypothesis that Myrceugenia is monophyletic, except for M. fernadeziana that falls outside the genus. Chilean species and Brazilian species form two separate lineages. Chilean species form three early diverging clades, whereas Brazilian species are a strongly supported monophyletic group in a terminal position. Least average evolutionary divergence, low resolution, short branches, and high species diversity found in the Brazilian clade suggest rapid radiation. Geographical distributions and phylogenetic reconstructions suggest that extant Myrceugenia species arose in northern Chile followed by colonization southward and finally to the Juan Fernandez Islands and southeastern Brazil.1 aMurillo, A J1 aRuiz, P E1 aLandrum, L R1 aStuessy, T F1 aBarfuss, M H  uhttps://myrcia.myspecies.info/content/phylogenetic-relationships-myrceugenia-myrtaceae-based-plastid-and-nuclear-dna-sequences