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2001 Fiscal Year Final Research Report Summary

Genetic linkage analysis of ecological traits and molecular markers in Lilium

Research Project

Project/Area Number 11660033
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 園芸・造園学
Research InstitutionKyushu University

Principal Investigator

HIRAMATSU Michikazu  Fac. Of Agriculture, Graduate School, Kyushu University, Assistant Prof., 大学院・農学研究院, 助手 (30264104)

Project Period (FY) 1999 – 2001
KeywordsLily / Lilium longiflorum / Lilium formosanum / ecological trait / genetic analysis / genetic linkage map
Research Abstract

The aim of the present research is to reveal evolutionary and genetic backgrounds of ecological traits that significantly differentiate closely- related, and -distributed species, Lilium longiflorum and L. formosanum.
Population genetic analysis based on allozyme variations suggests that L. formosanum is a derivative from southern peripheral populations of L. longiflorum around the late Pleistcene. The `early flowering` trait characterized by virgin flowering coming within a year from sowing in L. formosanum seemed to be reflected in the significantly larger annual net production in a plant body above the ground than that of L. longiflorum, even in the case that the annual net production in an underground part was comparable between the species.
All F_1 progenies generated from crosses between L. formosanum and L. longiflorum flowered within a year from sowing. Self-compatibility and summer flowering traits of L. formosanum appeared almost dominantly in F_1 progenies. These results indicate that accumulated dominant mutations for such ecological traits in an ancestral population promote speciation of L. formosanum from L. longiflorum.
Progenies in F_2 were segregated into ones with or without the `early-flowering` trait originated from L. formosanum. The `early-flowering` was appeared in individuals with the larger net production. This indicates that genes controlling net production closely concern the `early flowering`.
Construction of genetic linkage map with randomly amplified polymorphic DNA (RAPD) markers was quite difficult, since stably-resolved RAPD markers were not obtained sufficiently. Thus, mapping of molecular markers and Quantitative trait loci (QTL) should be conducted using such alternative stably-resolved DNA markers as amplified fragment length polymorphism (AFLP).

  • Research Products

    (6 results)

All Other

All Publications (6 results)

  • [Publications] Hiramatsu, M. et al.: "Habitat and reproductive isolation as factors in speciation between Lilium longiflorum Thunb. and L. formosanum Wallace"J. Japan. Soc. Hort. Sci.. 70. 722-724 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Hiramatsu, M. et al.: "Genetic control of isozymes in Lilium longiflorum Thunb"J. Fac. Agr., Kyushu Univ.. 46. 61-67 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Hiramatsu, M. et al.: "Biogeography and origin of Lilium longiflorum and L. formosanum (Liliaceae) endemic to the Ryukyu Archipelago and Taiwan as determined by allozyme diversity"Amer. J. Bot.. 88. 1230-1239 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Hiramatsu, M. et al.: "Habitat and reproductive isolation as factors in speciation between Lilium longiflorum Thunb. And L. formosanum Wallace"J. Japan. Soc. Hort. Sci.. 70. 722-724 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Hiramatsu, M. et al.: "Genetic control of isozymes in Lilium longiflorum Thunb"J. Fac. Agr., Kyushu Univ.. 46. 61-67 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Hiramatsu, M. et al.: "Biogeography and origin of Lilium longiflorum and L formosanum (Liliaceae) endemic to the Ryukyu Archipelago and Taiwan as determined by allozyme diversity"Amer. J. Bot.. 88. 1230-1239 (2001)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2003-09-17  

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