@ARTICLE{TreeBASE2Ref23447, author = {Jimmy Keith Triplett and Lynn Clark}, title = {Hybridization defines major patterns of diversity in the temperate bamboos (Poaceae: Bambusoideae: Arundinarieae)}, year = {2014}, keywords = {AFLP DNA-fingerprinting, Arundinaria, intergeneric hybridization, phylogeny, Pleioblastus, reticulate evolution}, doi = {}, url = {http://}, pmid = {}, journal = {Systematic Botany}, volume = {}, number = {}, pages = {}, abstract = {The temperate bamboos are a taxonomically difficult group with over 500 species in approximately 30 genera and at least 12 constituent lineages that are poorly resolved. In this study, phylogenetic relationships were explored using amplified fragment length polymorphism (AFLP) data in comparison with a phylogeny based on chloroplast DNA sequences, with an emphasis on Arundinaria of North America and its allies in East Asia (the Arundinaria clade). Molecular analyses involved 248 individuals in 10 genera and 60 species. Hybridization was detected both within and among genera. Comparative analyses indicated hybrid origins for species in several widespread and well-known genera, including Hibanobambusa, Sasaella, and Semiarundinaria. Evidence also indicated that Pseudosasa japonica (the type species of Pseudosasa) is an intergeneric hybrid involving Pleioblastus and Sasamorpha. In addition, cryptic hybrids were detected within and among Pleioblastus, Sasa, and Sasamorpha. After accounting for hybrids, phylogenetic analyses of AFLP data provided resolution for core lineages in the Arundinaria clade, including Pleioblastus sensu stricto, Sasa s.s., and Sasamorpha. AFLP data also provided evidence for the monophyly of the North American cane bamboos (Arundinaria, 3 spp.) but failed to identify their closest relative among the East Asian taxa. The broader evolutionary implications of hybridization in the temperate bamboos are discussed along with recommendations for future studies.} }

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