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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Taylor & Francis
2020
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ftdatacite:10.6084/m9.figshare.8247827.v2 2023-05-15T13:43:56+02:00 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 2020 https://dx.doi.org/10.6084/m9.figshare.8247827.v2 https://tandf.figshare.com/articles/dataset/Origin_and_divergence_of_Afro-Indian_Picrodendraceae_linking_pollen_morphology_dispersal_modes_fossil_records_molecular_dating_and_paleogeography/8247827/2 unknown Taylor & Francis https://dx.doi.org/10.1080/00173134.2019.1594357 https://dx.doi.org/10.6084/m9.figshare.8247827 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY Evolutionary Biology FOS Biological sciences 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology 20199 Astronomical and Space Sciences not elsewhere classified FOS Physical sciences 69999 Biological Sciences not elsewhere classified Science Policy Plant Biology dataset Dataset 2020 ftdatacite https://doi.org/10.6084/m9.figshare.8247827.v2 https://doi.org/10.1080/00173134.2019.1594357 https://doi.org/10.6084/m9.figshare.8247827 2021-11-05T12:55:41Z 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. Dataset Antarc* Antarctica North Atlantic DataCite Metadata Store (German National Library of Science and Technology) Indian New Zealand |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Evolutionary Biology FOS Biological sciences 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology 20199 Astronomical and Space Sciences not elsewhere classified FOS Physical sciences 69999 Biological Sciences not elsewhere classified Science Policy Plant Biology |
spellingShingle |
Evolutionary Biology FOS Biological sciences 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology 20199 Astronomical and Space Sciences not elsewhere classified FOS Physical sciences 69999 Biological Sciences not elsewhere classified Science Policy Plant Biology 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 |
Evolutionary Biology FOS Biological sciences 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology 20199 Astronomical and Space Sciences not elsewhere classified FOS Physical sciences 69999 Biological Sciences not elsewhere classified Science Policy Plant Biology |
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 |
Dataset |
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 |
2020 |
url |
https://dx.doi.org/10.6084/m9.figshare.8247827.v2 https://tandf.figshare.com/articles/dataset/Origin_and_divergence_of_Afro-Indian_Picrodendraceae_linking_pollen_morphology_dispersal_modes_fossil_records_molecular_dating_and_paleogeography/8247827/2 |
geographic |
Indian New Zealand |
geographic_facet |
Indian New Zealand |
genre |
Antarc* Antarctica North Atlantic |
genre_facet |
Antarc* Antarctica North Atlantic |
op_relation |
https://dx.doi.org/10.1080/00173134.2019.1594357 https://dx.doi.org/10.6084/m9.figshare.8247827 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.8247827.v2 https://doi.org/10.1080/00173134.2019.1594357 https://doi.org/10.6084/m9.figshare.8247827 |
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