Origin and Early Evolution of Hydrocharitaceae and the Ancestral Role of Stratiotes-Reference-Cited by-同舟云学术

Origin and Early Evolution of Hydrocharitaceae and the Ancestral Role of Stratiotes

Published:2024-03-31 Issue:7 Volume:13 Page:1008
ISSN:2223-7747
Container-title:Plants
language:en
Short-container-title:Plants

Author:

Ulrich Silvia¹²^ORCID,Vieira Manuel³^ORCID,Coiro Mario⁴^ORCID,Bouchal Johannes M.¹^ORCID,Geier Christian¹^ORCID,Jacobs Bonnie F.⁵^ORCID,Currano Ellen D.⁶,Lenz Olaf K.⁷,Wilde Volker⁸,Zetter Reinhard¹,Grímsson Friðgeir¹^ORCID

Affiliation:

1. Department of Botany and Biodiversity Research, University of Vienna, 1030 Vienna, Austria

2. Department of Historical Archaeology, Austrian Archaeological Institute (OeAI), Austrian Academy of Sciences (OeAW), 1010 Vienna, Austria

3. Department of Earth Sciences, GeoBioTec, NOVA School of Science and Technology, Campus de Caparica, 2829-516 Caparica, Portugal

4. Department of Palaeontology, University of Vienna, 1090 Vienna, Austria

5. Roy M. Huffington Department of Earth Sciences, Southern Methodist University, Dallas, TX 75275, USA

6. Departments of Botany and Geology & Geophysics, University of Wyoming, Laramie, WY 82071, USA

7. Institute of Applied Geosciences, Technical University Darmstadt, 64287 Darmstadt, Germany

8. Section Palaeobotany, Division Palaeontology and Historical Geology, Senckenberg Research Institute and Natural History Museum Frankfurt, 60325 Frankfurt am Main, Germany

Abstract

The combined morphological features of Stratiotes (Hydrocharitaceae) pollen, observed with light and electron microscopy, make it unique among all angiosperm pollen types and easy to identify. Unfortunately, the plant is (and most likely was) insect-pollinated and produces relatively few pollen grains per flower, contributing to its apparent absence in the paleopalynological record. Here, we present fossil Stratiotes pollen from the Eocene of Germany (Europe) and Kenya (Africa), representing the first reliable pre-Pleistocene pollen records of this genus worldwide and the only fossils of this family discovered so far in Africa. The fossil Stratiotes pollen grains are described and compared to pollen from a single modern species, Stratiotes aloides L. The paleophytogeographic significance and paleoecological aspects of these findings are discussed in relation to the Hydrocharitaceae fossil records and molecular phylogeny, as well as the present-day distribution patterns of its modern genera.

Funder

Austrian Science Fund

Open Access Funding by the University of Vienna

Publisher

MDPI AG

Link

https://www.mdpi.com/2223-7747/13/7/1008/pdf

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