Distribution of living Cupressaceae reflects the breakup of Pangea
Identifieur interne : 000511 ( Main/Exploration ); précédent : 000510; suivant : 000512Distribution of living Cupressaceae reflects the breakup of Pangea
Auteurs : Kangshan Mao [République populaire de Chine, Royaume-Uni] ; Richard I. Milne [République populaire de Chine, Royaume-Uni] ; Libing Zhang [République populaire de Chine] ; Yanling Peng [République populaire de Chine] ; Jianquan Liu [République populaire de Chine] ; Philip Thomas [Royaume-Uni] ; Robert R. Mill [Royaume-Uni] ; Susanne S. Renner [Allemagne]Source :
- Proceedings of the National Academy of Sciences of the United States of America [ 0027-8424 ] ; 2012.
Abstract
Most extant genus-level radiations in gymnosperms are of Oligocene age or younger, reflecting widespread extinction during climate cooling at the Oligocene/Miocene boundary [∼23 million years ago (Ma)]. Recent biogeographic studies have revealed many instances of long-distance dispersal in gymnosperms as well as in angiosperms. Acting together, extinction and long-distance dispersal are likely to erase historical biogeographic signals. Notwithstanding this problem, we show that phylogenetic relationships in the gymnosperm family Cupressaceae (162 species, 32 genera) exhibit patterns expected from the Jurassic/Cretaceous breakup of Pangea. A phylogeny was generated for 122 representatives covering all genera, using up to 10,000 nucleotides of plastid, mitochondrial, and nuclear sequence per species. Relying on 16 fossil calibration points and three molecular dating methods, we show that Cupressaceae originated during the Triassic, when Pangea was intact. Vicariance between the two subfamilies, the Laurasian Cupressoideae and the Gondwanan Callitroideae, occurred around 153 Ma (124–183 Ma), when Gondwana and Laurasia were separating. Three further intercontinental disjunctions involving the Northern and Southern Hemisphere are coincidental with or immediately followed the breakup of Pangea.
Url:
DOI: 10.1073/pnas.1114319109
PubMed: 22550176
PubMed Central: 3356613
Affiliations:
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Milne</name><affiliation wicri:level="1"><nlm:aff id="aff1">State Key Laboratory of Grassland Agro-Ecosystem, School of Life Sciences,<institution>Lanzhou University</institution>, Lanzhou, Gansu 730000,<country>People's Republic of China</country>;</nlm:aff><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation><affiliation wicri:level="1"><nlm:aff id="aff2">Institute of Molecular Plant Sciences, School of Biological Sciences,<institution>University of Edinburgh</institution>, Edinburgh EH9 3JH,<country>United Kingdom</country>;</nlm:aff><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation><affiliation wicri:level="1"><nlm:aff id="aff3"><institution>Royal Botanic Garden Edinburgh</institution>, Edinburgh EH3 5LR, Scotland,<country>United Kingdom</country>;</nlm:aff><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation></author><author><name sortKey="Zhang, Libing" sort="Zhang, Libing" uniqKey="Zhang L" first="Libing" last="Zhang">Libing Zhang</name><affiliation wicri:level="1"><nlm:aff id="aff4">Chengdu Institute of Biology,<institution>Chinese Academy of Sciences</institution>, Chengdu, Sichuan 610041, People’s Republic of<country>China</country>;</nlm:aff><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation><affiliation><nlm:aff id="aff5"><institution>Missouri Botanical Garden</institution>, St. Louis,<addr-line>MO</addr-line> 63166;</nlm:aff></affiliation></author><author><name sortKey="Peng, Yanling" sort="Peng, Yanling" uniqKey="Peng Y" first="Yanling" last="Peng">Yanling Peng</name><affiliation wicri:level="1"><nlm:aff id="aff1">State Key Laboratory of Grassland Agro-Ecosystem, School of Life Sciences,<institution>Lanzhou University</institution>, Lanzhou, Gansu 730000,<country>People's Republic of China</country>;</nlm:aff><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation></author><author><name sortKey="Liu, Jianquan" sort="Liu, Jianquan" uniqKey="Liu J" first="Jianquan" last="Liu">Jianquan Liu</name><affiliation wicri:level="1"><nlm:aff id="aff1">State Key Laboratory of Grassland Agro-Ecosystem, School of Life Sciences,<institution>Lanzhou University</institution>, Lanzhou, Gansu 730000,<country>People's Republic of China</country>;</nlm:aff><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation></author><author><name sortKey="Thomas, Philip" sort="Thomas, Philip" uniqKey="Thomas P" first="Philip" last="Thomas">Philip Thomas</name><affiliation wicri:level="1"><nlm:aff id="aff3"><institution>Royal Botanic Garden Edinburgh</institution>, Edinburgh EH3 5LR, Scotland,<country>United Kingdom</country>;</nlm:aff><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation></author><author><name sortKey="Mill, Robert R" sort="Mill, Robert R" uniqKey="Mill R" first="Robert R." last="Mill">Robert R. Mill</name><affiliation wicri:level="1"><nlm:aff id="aff3"><institution>Royal Botanic Garden Edinburgh</institution>, Edinburgh EH3 5LR, Scotland,<country>United Kingdom</country>;</nlm:aff><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation></author><author><name sortKey="S Renner, Susanne" sort="S Renner, Susanne" uniqKey="S Renner S" first="Susanne" last="S. Renner">Susanne S. Renner</name><affiliation wicri:level="1"><nlm:aff id="aff6">Systematic Botany and Mycology, Department of Biology,<institution>University of Munich</institution>, 80638 Munich,<country>Germany</country></nlm:aff><country xml:lang="fr">Allemagne</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation></author></analytic><series><title level="j">Proceedings of the National Academy of Sciences of the United States of America</title><idno type="ISSN">0027-8424</idno><idno type="eISSN">1091-6490</idno><imprint><date when="2012">2012</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p>Most extant genus-level radiations in gymnosperms are of Oligocene age or younger, reflecting widespread extinction during climate cooling at the Oligocene/Miocene boundary [∼23 million years ago (Ma)]. Recent biogeographic studies have revealed many instances of long-distance dispersal in gymnosperms as well as in angiosperms. Acting together, extinction and long-distance dispersal are likely to erase historical biogeographic signals. Notwithstanding this problem, we show that phylogenetic relationships in the gymnosperm family Cupressaceae (162 species, 32 genera) exhibit patterns expected from the Jurassic/Cretaceous breakup of Pangea. A phylogeny was generated for 122 representatives covering all genera, using up to 10,000 nucleotides of plastid, mitochondrial, and nuclear sequence per species. Relying on 16 fossil calibration points and three molecular dating methods, we show that Cupressaceae originated during the Triassic, when Pangea was intact. Vicariance between the two subfamilies, the Laurasian Cupressoideae and the Gondwanan Callitroideae, occurred around 153 Ma (124–183 Ma), when Gondwana and Laurasia were separating. Three further intercontinental disjunctions involving the Northern and Southern Hemisphere are coincidental with or immediately followed the breakup of Pangea.</p></div></front></TEI><affiliations><list><country><li>Allemagne</li><li>Royaume-Uni</li><li>République populaire de Chine</li></country></list><tree><country name="République populaire de Chine"><noRegion><name sortKey="Mao, Kangshan" sort="Mao, Kangshan" uniqKey="Mao K" first="Kangshan" last="Mao">Kangshan Mao</name></noRegion><name sortKey="Liu, Jianquan" sort="Liu, Jianquan" uniqKey="Liu J" first="Jianquan" last="Liu">Jianquan Liu</name><name sortKey="Milne, Richard I" sort="Milne, Richard I" uniqKey="Milne R" first="Richard I." last="Milne">Richard I. Milne</name><name sortKey="Peng, Yanling" sort="Peng, Yanling" uniqKey="Peng Y" first="Yanling" last="Peng">Yanling Peng</name><name sortKey="Zhang, Libing" sort="Zhang, Libing" uniqKey="Zhang L" first="Libing" last="Zhang">Libing Zhang</name></country><country name="Royaume-Uni"><noRegion><name sortKey="Mao, Kangshan" sort="Mao, Kangshan" uniqKey="Mao K" first="Kangshan" last="Mao">Kangshan Mao</name></noRegion><name sortKey="Mao, Kangshan" sort="Mao, Kangshan" uniqKey="Mao K" first="Kangshan" last="Mao">Kangshan Mao</name><name sortKey="Mill, Robert R" sort="Mill, Robert R" uniqKey="Mill R" first="Robert R." last="Mill">Robert R. Mill</name><name sortKey="Milne, Richard I" sort="Milne, Richard I" uniqKey="Milne R" first="Richard I." last="Milne">Richard I. Milne</name><name sortKey="Milne, Richard I" sort="Milne, Richard I" uniqKey="Milne R" first="Richard I." last="Milne">Richard I. Milne</name><name sortKey="Thomas, Philip" sort="Thomas, Philip" uniqKey="Thomas P" first="Philip" last="Thomas">Philip Thomas</name></country><country name="Allemagne"><noRegion><name sortKey="S Renner, Susanne" sort="S Renner, Susanne" uniqKey="S Renner S" first="Susanne" last="S. Renner">Susanne S. Renner</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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