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Reassessing the relationships between Gordoniaand Polyspora (Theaceae) based on the combined analyses of molecular data from the nuclear, plastid and mitochondrial genomes

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Abstract.

The combined analyses, based on ITS, trnL-F and matR DNA sequence data respectively from the nuclear, plastid and mitochondrial genomes, reveal that Gordonia is not a monophyletic group, and on the contrary, distributed in two major lineages in Theaceae. The only North American species, G. lasianthus, is located in Gordonieae together with Schima and Franklinia, whereas the Chinese Gordonia species are positioned in Theeae together with Camellia, Pyrenaria s.l. and Apterosperma. This result, to great extent, supports the viewpoints of separating the North American and Asiatic Gordonia species into two different genera, Gordonia s.str. and Polyspora, respectively.

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Authors and Affiliations

  1. Department of Plant Taxonomy and Phytogeography, Kunming Institute of Botany, the Chinese Academy of Sciences, Kunming, Yunnan, 650204, P.R. China

    S.-X. Yang, J.-B. Yang, L.-G. Lei & D.-Z. Li

  2. Research Farm & Laboratory of Plant Cytogenetics, Faculty of Agriculture, Okayama University, Okayama, 700-8530, Japan

    H. Yoshino

  3. Laboratory of Biotechnology, National Agricultural Research Center for Western Region, 6-11-3-502 Nishifukatsu, Fukuyama, Hiroshima, 721-0975, Japan

    T. Ikeda

Authors
  1. S.-X. Yang
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  2. J.-B. Yang
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  3. L.-G. Lei
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  4. D.-Z. Li
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  5. H. Yoshino
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  6. T. Ikeda
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Corresponding author

Correspondence to S.-X. Yang.

Additional information

The study was partially supported by funds from a project of the Provincial Natural Sciences Foundation Committee of Yunnan, P. R. China (97C039Q), the special support grants from The Chinese Academy of Sciences for biotaxonomy and floristics.

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Yang, SX., Yang, JB., Lei, LG. et al. Reassessing the relationships between Gordoniaand Polyspora (Theaceae) based on the combined analyses of molecular data from the nuclear, plastid and mitochondrial genomes. Plant Syst. Evol. 248, 45–55 (2004). https://doi.org/10.1007/s00606-004-0178-3

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  • DOI: https://doi.org/10.1007/s00606-004-0178-3

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