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Does gene flow along environmental gradient inhibit adaptation? An approach using the optimality theory

Research Project

Project/Area Number 17H03727
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Ecology/Environment
Research InstitutionTohoku University

Principal Investigator

Hikosaka Kouki  東北大学, 生命科学研究科, 教授 (10272006)

Co-Investigator(Kenkyū-buntansha) 花田 耕介  九州工業大学, 大学院情報工学研究院, 教授 (50462718)
藤井 伸治  東北大学, 生命科学研究科, 准教授 (70272002)
森長 真一  日本大学, 生物資源科学部, 助教 (80568262)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥18,200,000 (Direct Cost: ¥14,000,000、Indirect Cost: ¥4,200,000)
Fiscal Year 2019: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2018: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2017: ¥13,650,000 (Direct Cost: ¥10,500,000、Indirect Cost: ¥3,150,000)
Keywords局所適応 / 進化 / 遺伝子流動 / 標高 / 環境適応 / 形質 / 遺伝的分化 / エコタイプ / 最適化 / 生理生態 / 適応遺伝子 / 標高適応 / 適応 / 自然変異 / 環境勾配
Outline of Final Research Achievements

In different environments, selective pressures in each environment enhance adaptive differentiation, but gene flows from the different environment may inhibit evolution. Here, we tested whether gene flow along altitude inhibit adaptation to the respective altitude in Arabidopsis halleri. The growth analysis with optimization theory reveled that highland ecotype adapts to higher nitrogen conditions while lowland ecotype adapts to a wide range of nitrogen conditions. Genetic analysis showed that gene flow occurs but in some single nucleotide polymorphisms (SNP) there was a clear differentiation in allele frequency along altitude, probably as a result of strong selection. We conclude genetic differentiation occurs if environmental condition is very different between two subpopulations even when their distance was small.

Academic Significance and Societal Importance of the Research Achievements

一般的に、進化は生殖的隔離が起こるときに起こりやすい。適応に対して選択はプラスにはたらく一方、遺伝子流動がマイナスに働き得るためである。本研究では、ハクサンハタザオの異なる標高に対する局所適応を研究対象とした。標高間では環境の違いが大きいが、比較的空間的距離が近いため、遺伝子流動が起こると考えられる。高空間解像度のサンプリングと最適化モデルを応用した育成実験により、遺伝子流動が起こるような環境でも、強い選択圧がはたらけば機能的分化が起こることを実験的に明らかにした。

Report

(4 results)
  • 2020 Final Research Report ( PDF )
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (24 results)

All 2020 2019 2018 2017

All Journal Article (12 results) (of which Int'l Joint Research: 6 results,  Peer Reviewed: 11 results,  Open Access: 4 results) Presentation (12 results)

  • [Journal Article] Variations in leaf economics spectrum traits for an evergreen coniferous species: Tree size dominates over environment factors2020

    • Author(s)
      Liu Zhili、Hikosaka Kouki、Li Fengri、Jin Guangze
    • Journal Title

      Functional Ecology

      Volume: 34 Issue: 2 Pages: 458-467

    • DOI

      10.1111/1365-2435.13498

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Temperature-related cline in the root mass fraction in East Asian wild radish along the Japanese archipelago2020

    • Author(s)
      Ishizuka Wataru、Hikosaka Kouki、Ito Motomi、Morinaga Shin-Ichi
    • Journal Title

      Breeding Science

      Volume: 70 Issue: 3 Pages: 321-330

    • DOI

      10.1270/jsbbs.18201

    • NAID

      130007866575

    • ISSN
      1344-7610, 1347-3735
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Plant size, environmental factors and functional traits jointly shape the stem radius growth rate in an evergreen coniferous species across ontogenetic stages2020

    • Author(s)
      Liu Zhili、Hikosaka Kouki、Li Fengri、Zhu Liangjun、Jin Guangze
    • Journal Title

      Journal of Plant Ecology

      Volume: 14 Issue: 2 Pages: 257-269

    • DOI

      10.1093/jpe/rtaa093

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Dividing the pie: A quantitative review on plant density responses2020

    • Author(s)
      Postma Johannes A.、Hecht Vera L.、Hikosaka Kouki、Nord Eric A.、Pons Thijs L.、Poorter Hendrik
    • Journal Title

      Plant, Cell & Environment

      Volume: 44 Issue: 4 Pages: 1072-1094

    • DOI

      10.1111/pce.13968

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Plasticity of functional traits and optimality of biomass allocation in elevational ecotypes of Arabidopsis halleri grown at different soil nutrient availabilities2019

    • Author(s)
      Wang Qing-Wei、Daumal Maya、Nagano Soichiro、Yoshida Naofumi、Morinaga Shin-Ichi、Hikosaka Kouki
    • Journal Title

      Journal of Plant Research

      Volume: 132 Issue: 2 Pages: 237-249

    • DOI

      10.1007/s10265-019-01088-9

    • NAID

      40021851847

    • Related Report
      2018 Annual Research Report 2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Limitation in the Photosynthetic Acclimation to High Temperature in Canopy Leaves of Quercus serrata2019

    • Author(s)
      Yamaguchi Daisuke P.、Mishima Dai、Nakamura Kozue、Sano Junji、Nakaji Tatsuro、Hiura Tsutom、Hikosaka Kouki
    • Journal Title

      Frontiers in Forests and Global Change

      Volume: 2 Pages: 19-19

    • DOI

      10.3389/ffgc.2019.00019

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Functional shifts in leaves of woody invaders of deciduous forests between their home and away ranges2019

    • Author(s)
      Martinez Kelsey A、Fridley Jason D、Oguchi Riichi、Aiba Masahiro、Hikosaka Kouki
    • Journal Title

      Tree Physiology

      Volume: 39 Issue: 9 Pages: 1551-1560

    • DOI

      10.1093/treephys/tpz065

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Modeling leaf CO2 assimilation and Photosystem II photochemistry from chlorophyll fluorescence and the photochemical reflectance index2019

    • Author(s)
      Hikosaka Kouki、Noda Hibiki M.
    • Journal Title

      Plant, Cell & Environment

      Volume: 42 Issue: 2 Pages: 730-739

    • DOI

      10.1111/pce.13461

    • Related Report
      2018 Annual Research Report 2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Acclimation and adaptation components of the temperature dependence of plant photosynthesis at the global scale.2019

    • Author(s)
      Kumarathunge et al. (including Onoda Y)
    • Journal Title

      New Phytologist

      Volume: 222 Issue: 2 Pages: 768-784

    • DOI

      10.1111/nph.15668

    • Related Report
      2018 Annual Research Report 2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Physiological validation of photochemical reflectance index (PRI) as a photosynthetic parameter using Arabidopsis thaliana mutants2018

    • Author(s)
      Kohzuma Kaori、Hikosaka Kouki
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 498 Issue: 1 Pages: 52-57

    • DOI

      10.1016/j.bbrc.2018.02.192

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Dependence of functional traits related to growth rates and their CO2 response on multiple habitat climate factors across Arabidopsis thaliana populations2018

    • Author(s)
      Ozaki Hiroshi、Oguchi Riichi、Hikosaka Kouki
    • Journal Title

      Journal of Plant Research

      Volume: 131 Issue: 6 Pages: 987-999

    • DOI

      10.1007/s10265-018-1058-1

    • Related Report
      2017 Annual Research Report
  • [Journal Article] Functional divergence of duplicate genes several million years after gene duplication in Arabidopsis2018

    • Author(s)
      Hanada Kousuke、Tezuka Ayumi、Nozawa Masafumi、Suzuki Yutaka、Sugano Sumio、Nagano Atsushi J、Ito Motomi、Morinaga Shin-Ichi
    • Journal Title

      DNA Research

      Volume: 25 Issue: 3 Pages: 327-339

    • DOI

      10.1093/dnares/dsy005

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Presentation] ハイパースペクトルカメラで解析した植物群落の光化学反射指数(PRI) と葉群光合成速度の関係2020

    • Author(s)
      中村 由紀子,小川 哲,辻本 克斗,彦坂 幸毅
    • Organizer
      日本植物学会第84回大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] ハイパースペクトルカメラで解析した植物群落内の個葉の光環境と光化学反射指数(PRI)の関係2020

    • Author(s)
      小川 哲,中村 由紀子,辻本 克斗,彦坂 幸毅
    • Organizer
      日本植物学会第84回大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 分光観測によって得られたクロロフィル蛍光,光化学反射指数(PRI),群落光合成速度の関係2020

    • Author(s)
      辻本 克斗,中村 由紀子,小川 哲,彦坂 幸毅
    • Organizer
      日本植物学会第84回大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Analysis of the genetic background of invasive species along latitude by using SNP information2020

    • Author(s)
      瀋 毅恒,尾崎 洋史,吉田 直史,森長 真一,彦坂 幸毅
    • Organizer
      日本植物学会第84回大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 種内変異を利用した高CO2 下成長促進遺伝子の探索2019

    • Author(s)
      小口 理一・花田 耕介・彦坂 幸毅
    • Organizer
      第66回日本生態学会大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 針葉樹林と落葉樹林優占種の標高傾度に沿った葉形質、生産力、資源利用効率の種内変異2019

    • Author(s)
      彦坂 幸毅・黒川 紘子・新井 孝尚・高柳 咲乃・田中 洋・永野 聡一郎・中静 透
    • Organizer
      第66回日本生態学会大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 栽培ダイコンと野生ダイコンの成長の高温ストレス応答2019

    • Author(s)
      中村由紀子・Wang Qing-Wei・小口理一・森長真一・彦坂幸毅
    • Organizer
      第60回日本植物生理学会年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] ハツカダイコン、ハマダイコンとそれらの交雑種F2における胚軸成長と高温ストレス応答2018

    • Author(s)
      中村由紀子・小口理一・森長真一・彦坂幸毅
    • Organizer
      東北植物学会第8回大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 標高間変異における自然選択と遺伝子流動と影響力の評価:ハクサンハタザオの全ゲノム解析から2018

    • Author(s)
      吉田直史・若宮健・鳥居怜平・小口理一・石井悠 ・藤井伸治・久保田渉誠・森長真一・花田耕介・ 河田雅圭・彦坂幸毅
    • Organizer
      東北植物学会第8回大会
    • Related Report
      2018 Annual Research Report 2017 Annual Research Report
  • [Presentation] Optimality and plasticity of biomass allocation in elevational ecotypes of Arabidopsis halleri at different soil nutrient availabilities2018

    • Author(s)
      Qingwei WANG, Maya Daumal, Soichiro Nagano, Naofumi Yoshida, Shin-Ichi Morinaga, Kouki Hikosaka
    • Organizer
      第65回日本生態学会大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 侵入種ミチタネツケバナと在来種タネツケバナの葉の機能形質の種内変異とその生息地環境依存性2018

    • Author(s)
      代抒凝・小口理一・森長真一・彦坂幸毅
    • Organizer
      東北植物学会第8回大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] ハクサンハタザオの局所適応解析:機能遺伝子の観点から2017

    • Author(s)
      吉田直史・小口理一・藤井伸治・久保田渉誠・森長真一・花田耕介・彦坂幸毅
    • Organizer
      東北植物学会第7回大会
    • Related Report
      2017 Annual Research Report

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Published: 2017-04-28   Modified: 2022-01-27  

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