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Unveiling novel deeply branching protist lineages to reconstruct major evolutionary events in the early history of eukaryotes

Project description

Illuminating eukaryotic evolution

The extraordinary diversity of life forms observed today began with the emergence of eukaryotic cells more than a billion years ago. Plants, animals and fungi evolved multicellularity, but these represent just a small subset of eukaryotic diversity. The majority are microbial protists, many of which branched out early in the eukaryotic tree. With the support of the Marie Skłodowska-Curie Actions programme, the EUKPHYLEVOL project aims to improve our knowledge of eukaryotic evolution by studying a homologous structure across eukaryotes: the flagellum. To determine evolutionary relationships, researchers will compare genomic sequences with cell morphology, life history and ecological function. Collectively, the study will shed light on the origin and evolution of complex eukaryotic traits such as flagellar architecture.

Objective

Animals, plants, and fungi, which evolved multicellularity independently from their unicellular ancestors, represent only a small minority of the many branches on the eukaryotic tree of life, while the most of eukaryotic diversity is represented by microbial eukaryotes, or protists. Heterotrophic flagellates have been found in all major eukaryotic lineages and represent the most ancient and ancestral cellular organization. Heterotrophic flagellates often occupy early-branching or intermediate evolutionary positions within eukaryotes, thus comprehensive studies of novel lineages of heterotrophic flagellates not only fill the gaps in microbial diversity and phylogeny, but also help to understand the origin and evolution of major, well-known and diverse eukaryotic groups. Moreover, elements of the flagellar apparatus are homologous in all eukaryotes and are an excellent tool of comparative morphology to help interpret molecular phylogenetic data. The main goal of this project is to culture new and important protist lineages occupying key positions in the eukaryotic tree of life and to characterize their biology by linking sequence information to morphological, life history, and ecological traits. I propose two parallel Objectives on morphological and molecular characterization of previously unknown and understudied deeply branching lineages of eukaryotes, Collodictyonida and Rhizaria, that are both of critical importance in understanding eukaryotic evolution.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships

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Call for proposal

(opens in new window) HORIZON-MSCA-2024-PF-01

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Coordinator

AGENCIA ESTATAL CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS
Net EU contribution
€ 209 914,56
Address
CALLE SERRANO 117
28006 Madrid
Spain
Region
Comunidad de Madrid Comunidad de Madrid Madrid
Activity type
Research Organisations
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Total cost
No data