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Molecular phylogeny and evidence for natural hybridization and historical introgression between Ceriops species (Rhizophoraceae)
Biochemical Systematics and Ecology
  • Chi-Chu Tsai, Kaohsiung District Agricultural Improvement Station, Taiwan
  • Shu-Ju Li, Kaohsiung District Agricultural Improvement Station, Taiwan
  • Ju-Yen Su, Kaohsiung District Agricultural Improvement Station, Taiwan Email Kaohsiung District Agricultural Improvement Station, Taiwan
  • Jean WH Yong, Singapore University of Technology and Design
  • Peter Saenger, Southern Cross University
  • Peter Chesson, University of Arizona
  • Sauren Das, Indian Statistical Institute
  • Glenn Wightman, Department of Natural Resources, Environment & Arts, Palmerston, NT
  • Yuen-Po Yang, National Sun Yat-sen University
  • Ho-Yi Liu, National Sun Yat-sen University,
  • Chiou-Rong Sheue, National Chung Hsing University, Taichung
Document Type
Article
Publication Date
1-1-2012
Peer Reviewed
Peer-Reviewed
Abstract
Ceriops (Rhizophoraceae) is a genus comprised of five species of mangroves distributed in tropical and subtropical coastal regions. In this study, sequences from nuclear ribosomal ITS and the plastid trnL intron are used to construct molecular phylogenies of this genus revealing two species complexes, the C. tagalcomplex (C. tagal and C. australis), and the C. decandra complex (C. decandra, C. pseudodecandra and C.zippeliana), each forming a distinct clade. All five species, including the newly designated species C. pseudodecandra, are well supported. However, natural hybridization and historical introgression betweenCeriops species are also demonstrated. The ITS sequences of Ceriops species, in contrast to their plastidtrnL intron sequences, show a great amount of homoplasy during evolution. Historical introgression originating from natural hybridization was demonstrated based on the additivity of ITS sequences from putative parents. Of the five Ceriops species, C. pseudodecandra is a relatively isolated species.C.decandra and C. zippeliana show mutual introgression in most populations. According to both the nuclear ITS sequences and the plastid trnL intron, an intermediate form from Darwin is likely a natural hybrid, with C. tagal and C. australis respectively the maternal and paternal parents.
Citation Information

Pre-print of: Tsai, CC, Li, SJ, Su, YY, Yong, JWH, Saenger, P, Chesson,P, Das, S, Wightman, G, Yang, YP, Liu, HY & Sheue, CR 2012, 'Molecular phylogeny and evidence for natural hybridization and historical introgression between Ceriops species (Rhizophoraceae)', Biochemical Systematics and Ecology, vol. 43, pp. 178-191.

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NOTICE: this is the author’s version of a work that was accepted for publication in the above journal. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. The publisher's definitive version is available at:

http://dx.doi.org/10.1016/j.bse.2012.03.009