ibclogo XVI International Botanical Congess


Abstract Number: 2878
Session = 15.3.5


PARAPHYLY, POLYPHYLY, AND THE RADIATION OF TROPICAL PAPILIONOID TRIBES: MILLETTIEAE, PHASEOLEAE, AND ALLIES


J. M. Hu, M. Lavin, A. Delgado, H. Ohashi, T. Kajita, and J. J. Doyle (Univ. California, Davis, Montana State Univ., USA, UNAM, Mexico, Tohoku Univ., Japan, Kyushu Univ., Japan, Cornell Univ., USA).


Molecular phylogenies demonstrate that the predominantly Old World tribes Millettieae and Phaseoleae together form a distinct clade in Papilionoideae, even though both are para- or polyphyletic individually. Phylogenies based on chloroplast rbcL, matK, and nuclear ITS strongly support the monophyly of Millettieae/Phaseoleae clade, which also includes tribes Abreae, Desmodieae, and Psoraleeae. The phylogenies suggest that characters of the inflorescence, cytology, and non-protein amino acids provide clear phylogenetic information, where as fruit types usually obscure the relationships in these groups.


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