Root suckering in a Triassic conifer from Antarctica: Paleoecological and evolutionary implications
International audience Premise of the study: Although root suckering and other types of sprouting are well studied in extant woody plants, little is known about the distribution of these traits at a macroevolutionary scale. Anatomically preserved fossil plants represent an excellent but understudied...
Published in: | American Journal of Botany |
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ftccsdartic:oai:HAL:hal-03037329v1 2023-05-15T13:34:32+02:00 Root suckering in a Triassic conifer from Antarctica: Paleoecological and evolutionary implications Decombeix, Anne-Laure Taylor, Edith L. Taylor, Thomas N. Department of Ecology and Evolutionary Biology University of Kansas Lawrence (KU) 2011 https://hal.umontpellier.fr/hal-03037329 https://hal.umontpellier.fr/hal-03037329/document https://hal.umontpellier.fr/hal-03037329/file/Decombeix%20et%20al%202011%20AJB%20postprint%20for%20HAL.pdf https://doi.org/10.3732/ajb.1100028 en eng HAL CCSD Botanical Society of America info:eu-repo/semantics/altIdentifier/doi/10.3732/ajb.1100028 hal-03037329 https://hal.umontpellier.fr/hal-03037329 https://hal.umontpellier.fr/hal-03037329/document https://hal.umontpellier.fr/hal-03037329/file/Decombeix%20et%20al%202011%20AJB%20postprint%20for%20HAL.pdf doi:10.3732/ajb.1100028 info:eu-repo/semantics/OpenAccess ISSN: 0002-9122 American Journal of Botany https://hal.umontpellier.fr/hal-03037329 American Journal of Botany, Botanical Society of America, 2011, 98 (7), pp.1222-1225. ⟨10.3732/ajb.1100028⟩ conifer Middle Triassic sprouting polar forest root anatomy vegetative reproduction [SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology [SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] [SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics Phylogenetics and taxonomy info:eu-repo/semantics/article Journal articles 2011 ftccsdartic https://doi.org/10.3732/ajb.1100028 2021-10-16T22:22:56Z International audience Premise of the study: Although root suckering and other types of sprouting are well studied in extant woody plants, little is known about the distribution of these traits at a macroevolutionary scale. Anatomically preserved fossil plants represent an excellent but understudied source of information of the distribution of sprouting behavior through time and across taxa.Methods: A block of silicified peat collected in the Middle Triassic Fremouw Formation at the Fremouw Peak locality, Central Transantarctic Mountains, Antarctica, contains a group of anatomically preserved roots of the fossil conifer Notophytum krauselii that bear young shoots. The specimen was prepared using the standard acetate peel technique and studied in reflected and transmitted light.Key results: Young sucker shoots bearing well-preserved leaves are produced in groups in some areas of the Notophytum roots.Conclusions: The production of root suckers in Notophytum indicates that some of the trees growing in polar forests during the Triassic could respond to environmental stresses by regenerating their vegetative structures and had the potential to reproduce vegetatively. The specimens also represent the first anatomical evidence of root suckering in any fossil seed plant, and its occurrence in an early putative podocarp supports the idea that this trait might be ancestral in at least some extant conifer families. Article in Journal/Newspaper Antarc* Antarctica Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Fremouw Peak ENVELOPE(164.333,164.333,-84.283,-84.283) Transantarctic Mountains American Journal of Botany 98 7 1222 1225 |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
conifer Middle Triassic sprouting polar forest root anatomy vegetative reproduction [SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology [SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] [SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics Phylogenetics and taxonomy |
spellingShingle |
conifer Middle Triassic sprouting polar forest root anatomy vegetative reproduction [SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology [SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] [SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics Phylogenetics and taxonomy Decombeix, Anne-Laure Taylor, Edith L. Taylor, Thomas N. Root suckering in a Triassic conifer from Antarctica: Paleoecological and evolutionary implications |
topic_facet |
conifer Middle Triassic sprouting polar forest root anatomy vegetative reproduction [SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology [SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] [SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics Phylogenetics and taxonomy |
description |
International audience Premise of the study: Although root suckering and other types of sprouting are well studied in extant woody plants, little is known about the distribution of these traits at a macroevolutionary scale. Anatomically preserved fossil plants represent an excellent but understudied source of information of the distribution of sprouting behavior through time and across taxa.Methods: A block of silicified peat collected in the Middle Triassic Fremouw Formation at the Fremouw Peak locality, Central Transantarctic Mountains, Antarctica, contains a group of anatomically preserved roots of the fossil conifer Notophytum krauselii that bear young shoots. The specimen was prepared using the standard acetate peel technique and studied in reflected and transmitted light.Key results: Young sucker shoots bearing well-preserved leaves are produced in groups in some areas of the Notophytum roots.Conclusions: The production of root suckers in Notophytum indicates that some of the trees growing in polar forests during the Triassic could respond to environmental stresses by regenerating their vegetative structures and had the potential to reproduce vegetatively. The specimens also represent the first anatomical evidence of root suckering in any fossil seed plant, and its occurrence in an early putative podocarp supports the idea that this trait might be ancestral in at least some extant conifer families. |
author2 |
Department of Ecology and Evolutionary Biology University of Kansas Lawrence (KU) |
format |
Article in Journal/Newspaper |
author |
Decombeix, Anne-Laure Taylor, Edith L. Taylor, Thomas N. |
author_facet |
Decombeix, Anne-Laure Taylor, Edith L. Taylor, Thomas N. |
author_sort |
Decombeix, Anne-Laure |
title |
Root suckering in a Triassic conifer from Antarctica: Paleoecological and evolutionary implications |
title_short |
Root suckering in a Triassic conifer from Antarctica: Paleoecological and evolutionary implications |
title_full |
Root suckering in a Triassic conifer from Antarctica: Paleoecological and evolutionary implications |
title_fullStr |
Root suckering in a Triassic conifer from Antarctica: Paleoecological and evolutionary implications |
title_full_unstemmed |
Root suckering in a Triassic conifer from Antarctica: Paleoecological and evolutionary implications |
title_sort |
root suckering in a triassic conifer from antarctica: paleoecological and evolutionary implications |
publisher |
HAL CCSD |
publishDate |
2011 |
url |
https://hal.umontpellier.fr/hal-03037329 https://hal.umontpellier.fr/hal-03037329/document https://hal.umontpellier.fr/hal-03037329/file/Decombeix%20et%20al%202011%20AJB%20postprint%20for%20HAL.pdf https://doi.org/10.3732/ajb.1100028 |
long_lat |
ENVELOPE(164.333,164.333,-84.283,-84.283) |
geographic |
Fremouw Peak Transantarctic Mountains |
geographic_facet |
Fremouw Peak Transantarctic Mountains |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
ISSN: 0002-9122 American Journal of Botany https://hal.umontpellier.fr/hal-03037329 American Journal of Botany, Botanical Society of America, 2011, 98 (7), pp.1222-1225. ⟨10.3732/ajb.1100028⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.3732/ajb.1100028 hal-03037329 https://hal.umontpellier.fr/hal-03037329 https://hal.umontpellier.fr/hal-03037329/document https://hal.umontpellier.fr/hal-03037329/file/Decombeix%20et%20al%202011%20AJB%20postprint%20for%20HAL.pdf doi:10.3732/ajb.1100028 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.3732/ajb.1100028 |
container_title |
American Journal of Botany |
container_volume |
98 |
container_issue |
7 |
container_start_page |
1222 |
op_container_end_page |
1225 |
_version_ |
1766054037829976064 |