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Microsatellites retain phylogenetic signals across genera in eucalypts (Myrtaceae)
Provedor de dados: Genetics and Molecular Biology
Autores: Ochieng,Joel W.; Steane,Dorothy A.; Ladiges,Pauline Y.; Baverstock,Peter R.; Henry,Robert J.; Shepherd,Mervyn.
The utility of microsatellites (SSRs) in reconstructing phylogenies is largely confined to studies below the genus level, due to the potential of homoplasy resulting from allele size range constraints and poor SSR transferability among divergent taxa. The eucalypt genus Corymbia has been shown to be monophyletic using morphological characters, however, analyses of intergenic spacer sequences have resulted in contradictory hypotheses- showing the genus as either equivocal or paraphyletic. To assess SSR utility in higher order phylogeny in the family Myrtaceae, phylogenetic relationships of the bloodwood eucalypts Corymbia and related genera were investigated using eight polymorphic SSRs. Repeat size variation using the average square and Nei's distance were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Microsatellite phylogeny; Paraphyletic; Homoplasy; Incongruence; Eucalypts.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000600016