The University of Southampton
University of Southampton Institutional Repository

“Imperfections and oddities” in the origin of the nucleus

“Imperfections and oddities” in the origin of the nucleus
“Imperfections and oddities” in the origin of the nucleus
We outline a plausible evolutionary sequence that led from prokaryotes to the origin of the first nucleated cell. The nucleus is postulated to evolve after the archaebacterium and eubacterium merged to form the symbiotic ancestor of amitochondriate protists. Descendants of these amitochondriate cells (archaeprotists) today thrive in organic-rich anoxic habitats where they are amenable to study. Eukaryosis, the origin of nucleated cells, occurred by the middle Proterozoic Eon prior to the deposition in sediments of well-preserved microfossils such as Vandalosphaeridium and the spiny spheres in the Doushantou cherts of China.
0094-8373
175-191
Margulis, Lynn
faca8923-0319-40ba-a7ef-c78b1f7cb9ea
Dolan, Michael F.
c64cc9ec-9950-44a0-8fce-104cb05a00ff
Whiteside, Jessica H.
5d9ad7aa-eba3-4ad9-9f6f-81be71b6829b
Margulis, Lynn
faca8923-0319-40ba-a7ef-c78b1f7cb9ea
Dolan, Michael F.
c64cc9ec-9950-44a0-8fce-104cb05a00ff
Whiteside, Jessica H.
5d9ad7aa-eba3-4ad9-9f6f-81be71b6829b

Margulis, Lynn, Dolan, Michael F. and Whiteside, Jessica H. (2005) “Imperfections and oddities” in the origin of the nucleus. Paleobiology, 31, supplement 2, Spring Issue, 175-191. (doi:10.1666/0094-8373(2005)031[0175:IAOITO]2.0.CO;2).

Record type: Article

Abstract

We outline a plausible evolutionary sequence that led from prokaryotes to the origin of the first nucleated cell. The nucleus is postulated to evolve after the archaebacterium and eubacterium merged to form the symbiotic ancestor of amitochondriate protists. Descendants of these amitochondriate cells (archaeprotists) today thrive in organic-rich anoxic habitats where they are amenable to study. Eukaryosis, the origin of nucleated cells, occurred by the middle Proterozoic Eon prior to the deposition in sediments of well-preserved microfossils such as Vandalosphaeridium and the spiny spheres in the Doushantou cherts of China.

This record has no associated files available for download.

More information

Published date: 2005
Organisations: Paleooceanography & Palaeoclimate

Identifiers

Local EPrints ID: 354774
URI: http://eprints.soton.ac.uk/id/eprint/354774
ISSN: 0094-8373
PURE UUID: bebb91c2-c9ea-4a12-8dc8-adfb19f9dc3f

Catalogue record

Date deposited: 19 Jul 2013 10:49
Last modified: 14 Mar 2024 14:24

Export record

Altmetrics

Contributors

Author: Lynn Margulis
Author: Michael F. Dolan

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×