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Is Persea (Lauraceae) monophyletic? Evidence from nuclear ribosomal ITS sequences

2009; Wiley; Volume: 58; Issue: 4 Linguagem: Inglês

10.1002/tax.584009

1996-8175

Jens G. Rohwer, Jie Li, Barbara Rudolph, Sabrina A. Schmidt, Henk van der Werff, Hsi‐Wen Li,

Plant and animal studies

Abstract The delimitation of genera within the Persea group (Lauraceae) has always been controversial. In an attempt to resolve the phylogenetic lines within this group, we analyzed ITS sequences of 61 species of the Persea group (Lauraceae) and 30 other species of Lauraceae. Several of the traditional genera or subgenera form well­supported groups, viz., Persea subg. Eriodaphne, Machilus, Persea subg. Persea , and Alseodaphne including Dehaasia . The included species of Phoebe form two clades that are unresolved with respect to Alseodaphne . However, Persea subg. Eriodaphne (together with the Macaronesian Apollonias barbujana ) forms one of the clades of an unresolved basal trichotomy within the Persea group, whereas Persea subg. Persea is well supported as member of an otherwise Asian clade including Alseodaphne and Phoebe . This indicates that Persea , as currently circumscribed, is not monophyletic. The affinities of the Macaronesian Persea indica are clearly American rather than Asian.