Phylogeny and biogeography of the rice tribe (Oryzeae): Evidence from combined analysis of 20 chloroplast fragments |
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| Authors: | Liang Tang Xin-hui Zou Gaston Achoundong Christina Potgieter Gerard Second Da-yong Zhang Song Ge |
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| Affiliation: | 1. State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China;2. College of Life Sciences, Beijing Normal University, Beijing 100875, China;3. Herbier National du Cameroun, BP 1601 Yaoundé, Cameroon;4. L’ Institut de recherche pour le développement (IRD, UMR DIAPC), Montpellier, France;5. Bews Herbarium, University of Kwazulu-Natal, South Africa;6. Graduate University of Chinese Academy of Sciences, Beijing 100039, China;1. Institute of Pharmacology and Toxicology, Dept. of Biomedical Sciences, University of Veterinary Medicine, Vienna, Austria;2. University of Applied Sciences Wiener Neustadt (FHWN), Wiener Neustadt, Austria;3. Institute of Medicinal Biochemistry, Dept. of Biomedical Sciences, University of Veterinary Medicine, Vienna, Austria;4. Dept. of Chemistry, University of Natural Resources and Life Sciences, Vienna, Austria;1. Naturalis Biodiversity Center, Leiden University, PO Box 9517, Leiden, The Netherlands;2. Section Ecology, Evolution and Biodiversity Conservation, KU Leuven, Kasteelpark Arenberg 31, PO Box 2437, BE-3001 Leuven, Belgium;3. Centre for Tropical Forest Sciences (CTFS), University of Buea, Department of Plant & Animal Sciences, P.O. Box 63, Buea, Cameroon;1. College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400716, China;2. State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Science, Beijing 100093, China;3. Department of Biology, Emory University, Atlanta, GA 30322, USA;1. Institution of Genomics and Bioinformatics, South China Agricultural University, Guangzhou 510642, China;2. Novogene Bioinformatics Institute, Building 301, Zone A10 Jiuxianqiao North Road, Chaoyang District, Beijing 100083, China;3. School of Life Sciences, Nanjing University, Nanjing 210023, China;4. Plant Germplasm and Genomics Center, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, China;5. University of the Chinese Academy of Sciences, Beijing 100039, China;6. Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China;7. Hunan Agricultural University, Changsha 410128, China;8. Yunnan Pu''er Tea Tree Breeding Station, No. 212 Zhenxing Avenue, Simao District, Pu Er, Yunnan 665099, China;9. John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA;10. Howard Hughes Medical Institute, University of Washington, Seattle, WA 98195, USA |
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| Abstract: | Based on sequences of 20 chloroplast fragments, we generated a fully resolved phylogeny of Oryzeae and estimated divergence times of its major lineages as well as explored the historical biogeography of the tribe. Our results (1) confirmed the monophyly of Oryzeae and two-subtribe subdivision; (2) indicated that Maltebrunia, Potamophila and Prosphytochloa were genetically distinct enough to deserve generic status but Maltebrunia and Prosphytochloa were sister groups in the subtribe Oryzinae while Potamophila was a member in the subtribe Zizaniinae; (3) suggested that the previously unresolved phylogeny of the subtribe Zizaniinae was most likely explained by insufficient data due to rapid radiation; (4) provided the first well-corroborated timescale for the origin and divergence of Oryzeae, with the crown node of Oryzeae and the deepest split of Oryza at ～24 and 15 MYA, respectively; (5) developed a biogeographic history of the tribe and substantiated the important roles of long-distance dispersal in the origin and diversification of the tribe Oryzeae. |
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