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The Phylogenetic Position of Eastern Asian Sedoideae (Crassulaceae) Inferred from Chloroplast and Nuclear DNA Sequences

Research Project

Project/Area Number 15570074
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Biodiversity/Systematics
Research InstitutionThe University of Tokyo

Principal Investigator

OHBA Hideaki  The University of Tokyo, University Museum, Professor, 総合研究博物館, 教授 (20004450)

Project Period (FY) 2003 – 2004
Project Status Completed (Fiscal Year 2004)
Budget Amount *help
¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 2004: ¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 2003: ¥1,700,000 (Direct Cost: ¥1,700,000)
KeywordsSedoideae / molecular phylogenetic tree / Telephium clade / Orostachys / Hylotelephium / trn-F Data / ITS Data / System / trnL-F Data / ベンケイソウ科 / マンネングサ属 / イワベンケイ属 / 系統 / 種多様性 / 倍数性 / 葉緑体DNA
Research Abstract

Opinions about the delimitation and classification of the subfamily Sedoideae are still highly divergent, and thus the generic and infrageneric classification becomes one of urgent systematic problems in Crassulaceae. Various classifications of the subfamily have been proposed and there are two opposing viewpoints. One view retains Sedum as a catchall taxon and recognizes only a few additional genera under the Sedoideae, and the other segregates some groups as genera (e.g., Rhodiola, Hylotelephium, Phedimus) from Sedum on the basis of unique sets of morphological characters and recognizes a number of genera under the subfamily. It is necessary to resolve these conflicting viewpoints by testing the monophyletic status of genera separated from Sedum and clarifying their phylogenetic relationships to Sedum (s. str.). About 300 species of Sedoideae are distributed in the eastern Asian region (Ohba 1978) and most genera segregated from Sedum are restricted in eastern Asia. This region can t … More herefore be regarded as both a center of generic and infrageneric diversification and a center of distribution for the Sedoideae.
I estimated the phylogeny of the Sedoideae on a broad scale across eastern Asia using sequence variation of the cpDNA trnL-trnF spacer and the Internal Transcribed Spacer regions of the nuclear ribosomal repeats to clarify the phylogenetic positions of Asian Sedoideae. Our results agreed with most of the former studies, except for the Telephium clade. All eastern Asian genera except Sedum(s. str.) were in groups corresponding to the Telephium clade and the clade was determined to be polyphyletic with four strongly supported subclades, Rhodiola, Hylotelephium, Phedimus, and Umbilicus. All eastern Asian genera segregated from Sedwnare separated in a lineage distinct from Sedum (s. str.). Hylotelephium, Orostachys, Meterostachys, and Sinocrassula are closely related. Hylotelephium is polyphyletic, as is also Orostachys. In this lecture our preliminary study on Kungia will be introduced. Less

Report

(3 results)
  • 2004 Annual Research Report   Final Research Report Summary
  • 2003 Annual Research Report
  • Research Products

    (8 results)

All 2004 2003 Other

All Journal Article (5 results) Publications (3 results)

  • [Journal Article] The phylogenetic position of eastern Asian Sedoideae (Crassulaceae) inferred from chloroplast and nuclear DNA.2004

    • Author(s)
      Mayuzumi, S., Ohba, H.
    • Journal Title

      Systematic Botany 29

      Pages: 587-598

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] The phylogenetic position of eastern Asian Sedoideae(Crassulaceae) inferred from chloroplast and nuclear DNA.2004

    • Author(s)
      Mayuzumi, S., Ohba, H.
    • Journal Title

      Systematic Botany 29

      Pages: 587-598

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Taxonomic studies on the Asian species of the genus Kalanchoe (Crassulaceae). Kalanchoe spathulata and its allied species.2003

    • Author(s)
      Ohba, H.
    • Journal Title

      Journal of Japanese Botany 78

      Pages: 247-256

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] New names of Sedum uniflorum Hook.& Arn.and its infraspecific taxa (Crassulaceae)2003

    • Author(s)
      Ohba, H.
    • Journal Title

      Journal of Japanese Botany 78

      Pages: 300-301

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] New names of Sedum uniflorum Hook. & Arn. and its infraspecific taxa (Crassulaceae).2003

    • Author(s)
      Ohba, H.
    • Journal Title

      Journal of Japanese Botany 78

      Pages: 300-301

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Publications] Ohba, H.: "Taxonomic studies on the Asian species of the genus Kalanchoe(Crassulaceae). Kalanchoe spathulata and its allied species"Journal of Japanese Botany. 78(5). 247-256 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Ohba, H.: "New names of Sedum uniflorum Hook. & Arn. and its infraspecific taxa(Crassulaceae)"Journal of Japanese Botany. 78(5). 300-301 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Mayuzumi, S., Ohba, H.: "The phylogenetic position of eastern Asian Sedoideae(Crassulaceae) inferred from chloroplast and nuclear DNA"Systematic Botany. 29(in press). (2004)

    • Related Report
      2003 Annual Research Report

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Published: 2003-04-01   Modified: 2016-04-21  

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