<?xml version='1.0' encoding='UTF-8'?>
<OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd">
  <responseDate>2026-03-12T07:58:38Z</responseDate>
  <request metadataPrefix="jpcoar_2.0" identifier="oai:ir.soken.ac.jp:00005643" verb="GetRecord">https://ir.soken.ac.jp/oai</request>
  <GetRecord>
    <record>
      <header>
        <identifier>oai:ir.soken.ac.jp:00005643</identifier>
        <datestamp>2023-06-20T14:56:12Z</datestamp>
        <setSpec>33:34</setSpec>
      </header>
      <metadata>
        <jpcoar:jpcoar xmlns:datacite="https://schema.datacite.org/meta/kernel-4/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcndl="http://ndl.go.jp/dcndl/terms/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:jpcoar="https://github.com/JPCOAR/schema/blob/master/2.0/" xmlns:oaire="http://namespace.openaire.eu/schema/oaire/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:rioxxterms="http://www.rioxx.net/schema/v2.0/rioxxterms/" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns="https://github.com/JPCOAR/schema/blob/master/2.0/" xsi:schemaLocation="https://github.com/JPCOAR/schema/blob/master/2.0/jpcoar_scm.xsd">
          <dc:title>高次血縁度から理解する社会性進化理論</dc:title>
          <dc:title xml:lang="en">Social evolution theory via higher order relatedness</dc:title>
          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">OHTSUKI, Hisashi</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName>大槻, 久</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:subject subjectScheme="Other">協力の進化</jpcoar:subject>
          <jpcoar:subject subjectScheme="Other">血縁度</jpcoar:subject>
          <jpcoar:subject subjectScheme="Other">血縁淘汰</jpcoar:subject>
          <jpcoar:subject subjectScheme="Other">進化ゲーム</jpcoar:subject>
          <jpcoar:subject subjectScheme="Other">クオラムセンシング</jpcoar:subject>
          <jpcoar:subject subjectScheme="Other">coalescence</jpcoar:subject>
          <jpcoar:subject subjectScheme="Other">集団遺伝学</jpcoar:subject>
          <datacite:description descriptionType="Other">23870009</datacite:description>
          <datacite:description descriptionType="Other">application/pdf</datacite:description>
          <datacite:description descriptionType="Other">2011～2012</datacite:description>
          <datacite:description descriptionType="Abstract">研究成果の概要（和文）：
他の個体に生存・繁殖上の利益を与える利他行動の進化を説明する理論の一つに血縁淘汰理論がある。従来二個体間の血縁に専ら着目していたこの理論を、三個体以上の血縁者間の相互作用も扱えるよう拡張した。その為に、二個体間の遺伝的近さを測る指標である血縁度を、三個体以上の遺伝的近さも扱えるように高次血縁度として一般化した。また応用例としてバクテリア間の化学コミュニケーションであるクオラムセンシングを取り上げ、これが個体間の高い血縁度の元で進化することを明らかにした。
研究成果の概要（英文）：
Kin selection is one of the theories that explains the evolution of altruism, which means a behavior that benefits other individuals in terms of survival or reproductive success. I have extended this theory, which originally concentrated on kinship between two individuals, to incorporate interactions of more than two individuals. For that purpose, I have generalized genetic relatedness for two individuals to a higher order one which represents genetic similarity of three individuals or more. As an application, I have studied quorum sensing, a form of microbial communication by chemical signals. I have shown that quorum sensing evolves under the existence of high genetic relatedness between individuals.</datacite:description>
          <datacite:description descriptionType="Other">50517802 | https://kaken.nii.ac.jp/ja/search/?qm=50517802</datacite:description>
          <datacite:description descriptionType="Other">科学研究費補助金研究成果報告書
研究代表者：大槻 久［総合研究大学院大学先導科学研究科助教］</datacite:description>
          <datacite:date dateType="Created">2013-06-09</datacite:date>
          <dc:language>jpn</dc:language>
          <dc:type rdf:resource="http://purl.org/coar/resource_type/c_18ws">research report</dc:type>
          <oaire:version rdf:resource="http://purl.org/coar/version/c_970fb48d4fbd8a85">VoR</oaire:version>
          <jpcoar:identifier identifierType="URI">https://ir.soken.ac.jp/records/5643</jpcoar:identifier>
          <jpcoar:relation>
            <jpcoar:relatedIdentifier identifierType="URI">https://kaken.nii.ac.jp/ja/grant/KAKENHI-PROJECT-23870009/</jpcoar:relatedIdentifier>
            <jpcoar:relatedTitle>KAKEN（科学研究費補助金データーベース）</jpcoar:relatedTitle>
          </jpcoar:relation>
          <jpcoar:file>
            <jpcoar:URI label="研究成果報告書">https://ir.soken.ac.jp/record/5643/files/23870009seika_ohtsuki.pdf</jpcoar:URI>
            <jpcoar:mimeType>application/pdf</jpcoar:mimeType>
            <jpcoar:extent>233.3 kB</jpcoar:extent>
            <datacite:date dateType="Available">2017-12-08</datacite:date>
          </jpcoar:file>
        </jpcoar:jpcoar>
      </metadata>
    </record>
  </GetRecord>
</OAI-PMH>
