• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Adaptive radiations of the Drosophila virilis section (Diptera, Drosophilidae) and mechanisms maintaining its high bio-diversity in the arcuate islands of East Asia

Research Project

Project/Area Number 16370040
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Biodiversity/Systematics
Research InstitutionHokkaido University of Education

Principal Investigator

WATABE Hideaki  Hokkaido University of Education, Professor, 教育学部, 教授 (10167190)

Co-Investigator(Kenkyū-buntansha) TODA Masanori  Hokkaido University, Professor, 低温科学研究所, 教授 (40113592)
AOTSUKA Tadashi  Tokyo Metropolitan University, Associate Professor, 都市教養学部, 助教授 (40106604)
NAMIKAWA Kanji  Hokkaido University of Education, Associate Professor, 教育学部, 助教授 (90192244)
Project Period (FY) 2004 – 2006
Project Status Completed (Fiscal Year 2006)
Budget Amount *help
¥10,200,000 (Direct Cost: ¥10,200,000)
Fiscal Year 2006: ¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 2005: ¥2,900,000 (Direct Cost: ¥2,900,000)
Fiscal Year 2004: ¥5,100,000 (Direct Cost: ¥5,100,000)
KeywordsDrosophila virilis section / speciation / geographic distribution / East Asia / karyotypes / isolating mechanisms / phylogeny / molecular tree / malanica species group / 分子系統樹 / 生殖的隔離 / 地理分布 / 染色体核型
Research Abstract

The Japan islands possess a very rich fauna for the Drosophila virilis section (Diptera, Drosophilidae), one of the major lineages within the subgenus Drosophila. Geographically, the virilis species group is very dominant in the cool temperate zone, the quadrisetata and the melanica species groups in the warm temperate zone, and the angor and the fluvialis species groups in the subtropical zone. For the robusta species group, both Drosophila neokadai of its okadai subgroup and D. lacertosa of its lacertosa subgroup are widely distributed in mainlands of Japan from Hokkaido to Kyushu throughout Honshu. Drosophila okadai of the okadai subgroup is common in cool districts, whereas D. gani in warm districts. Micro-habitats of these species of the Drosophila virilis section are restricted to riparian environments with high humidity and a relatively constant fluctuation of temperatures, such as streams or lakes in mountain areas. On the other hand, two species of the robusta subgroup, D. sor … More didula and D. pseudosordidula, dwell in temperate forests, but are not so abundant in many places.
The Tsugaru Straight lying between Hokkaido and Honshu and the Tokara Straight between Amami-Ohshima and Yakushima are "great waterfalls" for the geographic distribution of Drosophila gani of the robusta group and the angor group, respectively. The former is known as a major zoogeographical boundary of the Blakiston's Line and the latter as the Watase's Line splitting East Asia into two zoogeographic regions, the Oriental and the Palearctic Regions.
Karyotypes and reproductive isolation are studied in two allopatric populations of Drosophila tsigana (one from Guizhou Province in southern China and the other from Hokkaido in northern Japan) and in one population of a closely related species, D. longiserrata from Guizhou. In metaphase plates of larval brain cells, both geographic strains showed 2n=10 chromosomes, with 2 pairs of metacentric (V-shaped), 2 pairs of acrocentric (R-shaped) and 1 pair of dot-like (D-shaped) chromosomes. Drosophila longiserrata showed the same number, 10 chromosomes, comprising 2V, 1J (sub-metacentric chromosomes), 1R, and 1D. X chromosomes of both species were acrocentic, the presumed ancestral form. Pre-mating isolation was complete between D. tsigana and D. longiserrata, and successful mating was also limited in crosses between the two geographic populations of D. tsigana. These results imply that temperate members of the virilis section, the melanica group and probably the virilis group also, might have emerged in the Yun-Gui Highland and its adjacent mountains in southern China.
In the molecular phylogenetic trees constructed by sequences of nuclear and mitochondrial genes, the polychaeta species group, a tropic member of the Drosophila virilis section, is located in the basal position, and most of temperate species groups such as the melanica group and robusta subgroup in the distal one. Our present results strongly supports the Throckmorton's hypothesis on the process of adaptive radiations of the Drosophila virilis section: it might have emerged in tropic regions of the Old World, probably in Asia, spread to higher latitudes along green belt of East Asia, and then migrated to North America via Beringia and diversified in temperate deciduous forests there Less

Report

(4 results)
  • 2006 Annual Research Report   Final Research Report Summary
  • 2005 Annual Research Report
  • 2004 Annual Research Report
  • Research Products

    (14 results)

All 2007 2006 2005

All Journal Article (14 results)

  • [Journal Article] Genitalia structure and geographic distribution of Drosophila quadrisetata (Diptera, Drosophilidae)2007

    • Author(s)
      Watabe, H
    • Journal Title

      J. Hokkaido University of Education, Natural Sciences 58・1(in press)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Genetic differentiation and cryptic speciation in natural populations of Drosophila lacertosa2007

    • Author(s)
      He, L.
    • Journal Title

      Molecular Phylogenetics and Evolution 41(accepted)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Annual Research Report 2006 Final Research Report Summary
  • [Journal Article] Genitalia structure and geographic distribution of Drosophila quadrisetata (Diptera, Drosophilidae).2007

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

      J.Hokkaido University of Education, Natural Sciences 58(1)(in press)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Genetic differentiation and cryptic speciation in natural populations of Drosophila lacertosa.2007

    • Author(s)
      He, L.
    • Journal Title

      Molecular Phylogenetics and Evolution 41(accepted)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Genitalia structure and geographic distribution of Drosophila quadrisetata (Diptera, Drosophilidae)2007

    • Author(s)
      Watabe, H
    • Journal Title

      J. Hokkaido University of Edu cation, Natural Sciences 58・1(in press)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Taxonomic problems in the Drosophila melanica species group (Diptera : Drosophilidae) from southern China, with special reference to karyotypes and reproductive isolation2006

    • Author(s)
      Wang, B.
    • Journal Title

      Zoological Science 23・10

      Pages: 923-927

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] A new method for culturing Drosophila2006

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

      J. Hokkaido University of Education, Natural Sciences 57・1

      Pages: 41-47

    • NAID

      110004745368

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Annual Research Report 2006 Final Research Report Summary
  • [Journal Article] Molecular phylogeny of the Drosophila virilis section (Diptera : Drosophilidae) based on mitochondrial and nuclear sequences2006

    • Author(s)
      Wang, B.
    • Journal Title

      Molecular Phylogenetics and Evolution 40

      Pages: 484-500

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Annual Research Report 2006 Final Research Report Summary
  • [Journal Article] Molecular phylogeny of the Drosophila virilis section (Diptera : Drosophilidae) based on mitochondrial and nuclear sequences.2006

    • Author(s)
      Wang, BC.
    • Journal Title

      Molecular Phylogenetics and Evolution 40

      Pages: 484-500

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] A new method for culturing Drosophila.2006

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

      J.Hokkaido University of Education, Natural Sciences 57(1)

      Pages: 41-47

    • NAID

      110004745368

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Taxonomic problems in the Drosophila melanica species group (Diptera : Drosophilidae) from southern China, with special reference to karyotypes and reproductive isolation.2006

    • Author(s)
      Wang, BC.
    • Journal Title

      Zoological Science 23(10)

      Pages: 923-927

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Taxonomic problems in the Drosophila melanica species group (Diptera : Drosophilidae) from southern China, with special reference to karyotypes and reproductive isolation2006

    • Author(s)
      Wang, B.
    • Journal Title

      Zoological Science 23 ・10

      Pages: 923-927

    • Related Report
      2006 Annual Research Report
  • [Journal Article] A new method for culturing Drosophila2005

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

      J.Hokkaido University of Education, Natural Science 57・1(in press)

    • NAID

      110004745368

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Molecular phylogeny of the Drosophila virilis section (Diptera: Drosophilidae) based on mitochondrial and nuclear sequences2005

    • Author(s)
      Wang, B.
    • Journal Title

      Molecular Phylogenetics and Evolution 25(accept)

    • Related Report
      2005 Annual Research Report

URL: 

Published: 2004-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi