Fossilized Nuclei and Chromosomes Reveal 180 Million Years of Genomic Stasis in Royal Ferns
(2014) In Science 343(6177). p.1376-1377- Abstract
- Rapidly permineralized fossils can provide exceptional insights into the evolution of life over geological time. Here, we present an exquisitely preserved, calcified stem of a royal fern (Osmundaceae) from Early Jurassic lahar deposits of Sweden in which authigenic mineral precipitation from hydrothermal brines occurred so rapidly that it preserved cytoplasm, cytosol granules, nuclei, and even chromosomes in various stages of cell division. Morphometric parameters of interphase nuclei match those of extant Osmundaceae, indicating that the genome size of these reputed "living fossils" has remained unchanged over at least 180 million years-a paramount example of evolutionary stasis.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4410970
- author
- Bomfleur, Benjamin ; McLoughlin, Stephen and Vajda, Vivi LU
- organization
- publishing date
- 2014
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Science
- volume
- 343
- issue
- 6177
- pages
- 1376 - 1377
- publisher
- American Association for the Advancement of Science (AAAS)
- external identifiers
-
- wos:000333108500044
- scopus:84896924702
- pmid:24653037
- ISSN
- 1095-9203
- DOI
- 10.1126/science.1249884
- language
- English
- LU publication?
- yes
- id
- 6f7c22db-d06d-4d96-aec9-e5c11f1b51ee (old id 4410970)
- date added to LUP
- 2016-04-01 15:05:10
- date last changed
- 2022-03-30 00:26:17
@article{6f7c22db-d06d-4d96-aec9-e5c11f1b51ee, abstract = {{Rapidly permineralized fossils can provide exceptional insights into the evolution of life over geological time. Here, we present an exquisitely preserved, calcified stem of a royal fern (Osmundaceae) from Early Jurassic lahar deposits of Sweden in which authigenic mineral precipitation from hydrothermal brines occurred so rapidly that it preserved cytoplasm, cytosol granules, nuclei, and even chromosomes in various stages of cell division. Morphometric parameters of interphase nuclei match those of extant Osmundaceae, indicating that the genome size of these reputed "living fossils" has remained unchanged over at least 180 million years-a paramount example of evolutionary stasis.}}, author = {{Bomfleur, Benjamin and McLoughlin, Stephen and Vajda, Vivi}}, issn = {{1095-9203}}, language = {{eng}}, number = {{6177}}, pages = {{1376--1377}}, publisher = {{American Association for the Advancement of Science (AAAS)}}, series = {{Science}}, title = {{Fossilized Nuclei and Chromosomes Reveal 180 Million Years of Genomic Stasis in Royal Ferns}}, url = {{http://dx.doi.org/10.1126/science.1249884}}, doi = {{10.1126/science.1249884}}, volume = {{343}}, year = {{2014}}, }