DOI: 10.1073/pnas.062169599. Novel kingdom-level eukaryotic diversity in anoxic environments

Novel kingdom-level eukaryotic diversity in anoxic environments

10.1073/pnas.062169599

Crossref journal-article

Proceedings of the National Academy of Sciences

Proceedings of the National Academy of Sciences (341)

Abstract

Molecular evolutionary studies of eukaryotes have relied on a sparse collection of gene sequences that do not represent the full range of eukaryotic diversity in nature. Anaerobic microbes, particularly, have had little representation in phylogenetic studies. Such organisms are the least known of eukaryotes and probably are the most phylogenetically diverse. To provide fresh perspective on the natural diversity of eukaryotes in anoxic environments and also to discover novel sequences for evolutionary studies, we conducted a cultivation-independent, molecular phylogenetic survey of three anoxic sediments, including both freshwater and marine samples. Many previously unrecognized eukaryotes were identified, including representatives of seven lineages that are not specifically related to any known organisms at the kingdom-level and branch below the eukaryotic “crown” radiation of animals, plants, fungi, stramenopiles, etc. The survey additionally identified new sequences characteristic of known ecologically important eukaryotic groups with anaerobic members. Phylogenetic analyses with the new sequences enhance our understanding of the diversity and pattern of eukaryotic evolution.

Bibliography

Dawson, S. C., & Pace, N. R. (2002). Novel kingdom-level eukaryotic diversity in anoxic environments. Proceedings of the National Academy of Sciences, 99(12), 8324â8329.

Authors 2

Scott C. Dawson (first)
Norman R. Pace (additional)

References 30 Referenced 273

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Dates

Type	When
Created	23 years, 1 month ago (July 26, 2002, 10:46 a.m.)
Deposited	1 year, 7 months ago (Jan. 4, 2024, 12:17 a.m.)
Indexed	1 month, 2 weeks ago (July 19, 2025, 11:41 p.m.)
Issued	23 years, 2 months ago (June 11, 2002)
Published	23 years, 2 months ago (June 11, 2002)
Published Online	23 years, 2 months ago (June 11, 2002)
Published Print	23 years, 2 months ago (June 11, 2002)

Funders 0

None

BibTeX

@article{Dawson_2002, title={Novel kingdom-level eukaryotic diversity in anoxic environments}, volume={99}, ISSN={1091-6490}, url={http://dx.doi.org/10.1073/pnas.062169599}, DOI={10.1073/pnas.062169599}, number={12}, journal={Proceedings of the National Academy of Sciences}, publisher={Proceedings of the National Academy of Sciences}, author={Dawson, Scott C. and Pace, Norman R.}, year={2002}, month=jun, pages={8324–8329} }

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