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Transferability of Psidium microsatellite loci in Myrteae (Myrtaceae): a phylogenetic signal
- Bernardes, Carolinade Oliveira, Tuler, AméliaCarlos, Ferreira, Adésio, Carvalho, MarinaSantos, Nogueira, AngélicaMaria, Ferreira, MarciaFlores da Silva
- Euphytica 2018 v.214 no.7 pp. 105
- Acca, Campomanesia, Eucalyptus, Eugenia, Myrciaria, Pimenta, Plinia, Psidium guajava, Syzygium, biodiversity, genetic markers, genetic variation, microsatellite repeats, phylogeny, plant breeding
- Myrteae is the most diverse tribe, in number of species and genera, of the family Myrtaceae, representing half of the family’s biodiversity. Analysis of universal cross-transferable genetic markers across genera/species is essential and may significantly contribute towards the better understanding of species systematics and evolution. In the present study, a total of 133 sequence-tagged microsatellite markers from Psidium guajava L. were evaluated for transferability to forty-four species of the tribe Myrteae, which represent nine different genera of the family Myrtaceae (Myrciaria, Plinia, Pimenta, Acca, Campomanesia, Psidium, Eugenia, Syzygium, and Eucalyptus). Cross-transferable simple sequence repeat (SSR) markers were employed to evaluate the phylogenetic relationships between them. The results indicated a high level of congruence with earlier reports regarding genetic divergence and taxa clustering. An analysis to optimize the number of SSR markers was also performed, revealing that even a small amount is capable of determining the systematic positions of different genera/species of the Myrteae tribe.