Origin and divergence of Afro-Indian Picrodendraceae: linking pollen morphology, dispersal modes, fossil records, molecular dating and paleogeography
The pantropical Picrodendraceae produce mostly spheroidal to slightly oblate, echinate pollen grains equipped with narrow circular to elliptic pori that can be hard to identify to family level in both extant and fossil material using light microscopy only. Fossil pollen of the family have been descr...
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ftunivzuerich:oai:www.zora.uzh.ch:171243 2024-10-13T14:01:40+00:00 Origin and divergence of Afro-Indian Picrodendraceae: linking pollen morphology, dispersal modes, fossil records, molecular dating and paleogeography Grímsson, Friðgeir Graham, Shirley A Coiro, Mario Jacobs, Bonnie F Xafis, Alexandros Neumann, Frank H Scott, Louis Sakala, Jakub Currano, Ellen D Zetter, Reinhard 2019-07-04 application/pdf https://www.zora.uzh.ch/id/eprint/171243/ https://doi.org/10.1080/00173134.2019.1594357 eng eng Taylor & Francis https://www.zora.uzh.ch/id/eprint/171243/1/Grana_2019_227-275.pdf doi:10.5167/uzh-171243 doi:10.1080/00173134.2019.1594357 urn:issn:0017-3134 info:eu-repo/semantics/openAccess Creative Commons: Attribution 4.0 International (CC BY 4.0) http://creativecommons.org/licenses/by/4.0/ Grímsson, Friðgeir; Graham, Shirley A; Coiro, Mario; Jacobs, Bonnie F; Xafis, Alexandros; Neumann, Frank H; Scott, Louis; Sakala, Jakub; Currano, Ellen D; Zetter, Reinhard (2019). Origin and divergence of Afro-Indian Picrodendraceae: linking pollen morphology, dispersal modes, fossil records, molecular dating and paleogeography. Grana, 58(4):227-275. Department of Systematic and Evolutionary Botany Zurich-Basel Plant Science Center 580 Plants (Botany) Plant Science Ecology Evolution Behavior and Systematics Journal Article PeerReviewed info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2019 ftunivzuerich https://doi.org/10.1080/00173134.2019.159435710.5167/uzh-171243 2024-09-25T00:59:11Z The pantropical Picrodendraceae produce mostly spheroidal to slightly oblate, echinate pollen grains equipped with narrow circular to elliptic pori that can be hard to identify to family level in both extant and fossil material using light microscopy only. Fossil pollen of the family have been described from the Paleogene of America, Antarctica, Australia, New Zealand, and Europe, but until now none have been reported from Afro-India. Extant pollen described here include representatives from all recent Picrodendraceae genera naturally occurring in Africa and/or Madagascar and south India and selected closely related tropical American taxa. Our analyses, using combined light microscopy and scanning electron microscopy, show that pollen of the Afro-Indian genera encompass three morphological types: Type 1, comprising only Hyaenanche; Type 2, including Aristogeitonia, Mischodon, Oldfieldia and Voatamalo; Type 3, comprising the remaining two genera, Androstachys and Stachyandra. Based on the pollen morphology presented here it is evident that some previous light microscopic accounts of spherical and echinate fossil pollen affiliated with Arecaceae, Asteraceae, Malvaceae, and Myristicaceae from the African continent could belong to Picrodendraceae. The pollen morphology of Picrodendraceae, fossil pollen records, a dated intra-familial phylogeny, seed dispersal modes, and the regional Late Cretaceous to early Cenozoic paleogeography, together suggest the family originated in the Americas and dispersed from southern America across Antarctica and into Australasia. A second dispersal route is believed to have occurred from the Americas into continental Africa via the North Atlantic Land Bridge and Europe. Article in Journal/Newspaper Antarc* Antarctica North Atlantic University of Zurich (UZH): ZORA (Zurich Open Repository and Archive Indian New Zealand |
institution |
Open Polar |
collection |
University of Zurich (UZH): ZORA (Zurich Open Repository and Archive |
op_collection_id |
ftunivzuerich |
language |
English |
topic |
Department of Systematic and Evolutionary Botany Zurich-Basel Plant Science Center 580 Plants (Botany) Plant Science Ecology Evolution Behavior and Systematics |
spellingShingle |
Department of Systematic and Evolutionary Botany Zurich-Basel Plant Science Center 580 Plants (Botany) Plant Science Ecology Evolution Behavior and Systematics Grímsson, Friðgeir Graham, Shirley A Coiro, Mario Jacobs, Bonnie F Xafis, Alexandros Neumann, Frank H Scott, Louis Sakala, Jakub Currano, Ellen D Zetter, Reinhard Origin and divergence of Afro-Indian Picrodendraceae: linking pollen morphology, dispersal modes, fossil records, molecular dating and paleogeography |
topic_facet |
Department of Systematic and Evolutionary Botany Zurich-Basel Plant Science Center 580 Plants (Botany) Plant Science Ecology Evolution Behavior and Systematics |
description |
The pantropical Picrodendraceae produce mostly spheroidal to slightly oblate, echinate pollen grains equipped with narrow circular to elliptic pori that can be hard to identify to family level in both extant and fossil material using light microscopy only. Fossil pollen of the family have been described from the Paleogene of America, Antarctica, Australia, New Zealand, and Europe, but until now none have been reported from Afro-India. Extant pollen described here include representatives from all recent Picrodendraceae genera naturally occurring in Africa and/or Madagascar and south India and selected closely related tropical American taxa. Our analyses, using combined light microscopy and scanning electron microscopy, show that pollen of the Afro-Indian genera encompass three morphological types: Type 1, comprising only Hyaenanche; Type 2, including Aristogeitonia, Mischodon, Oldfieldia and Voatamalo; Type 3, comprising the remaining two genera, Androstachys and Stachyandra. Based on the pollen morphology presented here it is evident that some previous light microscopic accounts of spherical and echinate fossil pollen affiliated with Arecaceae, Asteraceae, Malvaceae, and Myristicaceae from the African continent could belong to Picrodendraceae. The pollen morphology of Picrodendraceae, fossil pollen records, a dated intra-familial phylogeny, seed dispersal modes, and the regional Late Cretaceous to early Cenozoic paleogeography, together suggest the family originated in the Americas and dispersed from southern America across Antarctica and into Australasia. A second dispersal route is believed to have occurred from the Americas into continental Africa via the North Atlantic Land Bridge and Europe. |
format |
Article in Journal/Newspaper |
author |
Grímsson, Friðgeir Graham, Shirley A Coiro, Mario Jacobs, Bonnie F Xafis, Alexandros Neumann, Frank H Scott, Louis Sakala, Jakub Currano, Ellen D Zetter, Reinhard |
author_facet |
Grímsson, Friðgeir Graham, Shirley A Coiro, Mario Jacobs, Bonnie F Xafis, Alexandros Neumann, Frank H Scott, Louis Sakala, Jakub Currano, Ellen D Zetter, Reinhard |
author_sort |
Grímsson, Friðgeir |
title |
Origin and divergence of Afro-Indian Picrodendraceae: linking pollen morphology, dispersal modes, fossil records, molecular dating and paleogeography |
title_short |
Origin and divergence of Afro-Indian Picrodendraceae: linking pollen morphology, dispersal modes, fossil records, molecular dating and paleogeography |
title_full |
Origin and divergence of Afro-Indian Picrodendraceae: linking pollen morphology, dispersal modes, fossil records, molecular dating and paleogeography |
title_fullStr |
Origin and divergence of Afro-Indian Picrodendraceae: linking pollen morphology, dispersal modes, fossil records, molecular dating and paleogeography |
title_full_unstemmed |
Origin and divergence of Afro-Indian Picrodendraceae: linking pollen morphology, dispersal modes, fossil records, molecular dating and paleogeography |
title_sort |
origin and divergence of afro-indian picrodendraceae: linking pollen morphology, dispersal modes, fossil records, molecular dating and paleogeography |
publisher |
Taylor & Francis |
publishDate |
2019 |
url |
https://www.zora.uzh.ch/id/eprint/171243/ https://doi.org/10.1080/00173134.2019.1594357 |
geographic |
Indian New Zealand |
geographic_facet |
Indian New Zealand |
genre |
Antarc* Antarctica North Atlantic |
genre_facet |
Antarc* Antarctica North Atlantic |
op_source |
Grímsson, Friðgeir; Graham, Shirley A; Coiro, Mario; Jacobs, Bonnie F; Xafis, Alexandros; Neumann, Frank H; Scott, Louis; Sakala, Jakub; Currano, Ellen D; Zetter, Reinhard (2019). Origin and divergence of Afro-Indian Picrodendraceae: linking pollen morphology, dispersal modes, fossil records, molecular dating and paleogeography. Grana, 58(4):227-275. |
op_relation |
https://www.zora.uzh.ch/id/eprint/171243/1/Grana_2019_227-275.pdf doi:10.5167/uzh-171243 doi:10.1080/00173134.2019.1594357 urn:issn:0017-3134 |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons: Attribution 4.0 International (CC BY 4.0) http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1080/00173134.2019.159435710.5167/uzh-171243 |
_version_ |
1812812155259453440 |