TY - JOUR
T1 - First molecular phylogeny of the pantropical genus Dalbergia
T2 - Implications for infrageneric circumscription and biogeography
AU - Vatanparast, Mohammad
AU - Klitgård, Bente B.
AU - Adema, Frits A.C.B.
AU - Pennington, R. Toby
AU - Yahara, Tetsukazu
AU - Kajita, Tadashi
N1 - Funding Information:
We thank curators of Herbaria of E, L, MO, and WAG to giving DNA materials. Our special gratitude to Niels Raes, Gerard Thijsse, James Solomon, Jan Wieringa and Shuichiro Tagane for arrangements of our visit and generously providing materials. We thank Matt Lavin for estimated age and useful suggestions on the manuscript. This study is supported by a grant from the Environment Research and Technology Development Fund (S-9) of the Ministry of the Environment, Japan.
PY - 2013/11
Y1 - 2013/11
N2 - The genus Dalbergia with c. 250 species has a pantropical distribution. In spite of the high economic and ecological value of the genus, it has not yet been the focus of a species level phylogenetic study. We utilized ITS nuclear sequence data and included 64 Dalbergia species representative of its entire geographic range to provide a first phylogenetic framework of the genus to evaluate previous infrageneric classifications based on morphological data. The phylogenetic analyses performed suggest that Dalbergia is monophyletic and that it probably originated in the New World. Several clades corresponding to sections of these previous classifications are revealed. Taking into account that there is not a complete correlation between geography and phylogeny, and the estimation that the Dalbergia stem and crown clades are 40.4-43.3 mya and 3.8-12.7 mya, respectively, it is plausible that several long distance dispersal events underlie the pantropical distribution of the genus.
AB - The genus Dalbergia with c. 250 species has a pantropical distribution. In spite of the high economic and ecological value of the genus, it has not yet been the focus of a species level phylogenetic study. We utilized ITS nuclear sequence data and included 64 Dalbergia species representative of its entire geographic range to provide a first phylogenetic framework of the genus to evaluate previous infrageneric classifications based on morphological data. The phylogenetic analyses performed suggest that Dalbergia is monophyletic and that it probably originated in the New World. Several clades corresponding to sections of these previous classifications are revealed. Taking into account that there is not a complete correlation between geography and phylogeny, and the estimation that the Dalbergia stem and crown clades are 40.4-43.3 mya and 3.8-12.7 mya, respectively, it is plausible that several long distance dispersal events underlie the pantropical distribution of the genus.
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U2 - 10.1016/j.sajb.2013.07.001
DO - 10.1016/j.sajb.2013.07.001
M3 - Article
AN - SCOPUS:84887817500
SN - 0254-6299
VL - 89
SP - 143
EP - 149
JO - South African Journal of Botany
JF - South African Journal of Botany
ER -