Publication Date:
2022-05-25
Description:
Author Posting. © The Authors, 2005. This is the author's version of the work. It is posted here by permission of American Association for the Advancement of Science for personal use, not for redistribution. The definitive version was published in Science 307 (2005): 1311-1313, doi:10.1126/science.1106028.
Description:
The genomic diversity and relative importance of unique genotypes within natural
bacterial populations has remained largely unknown. Here, we analyze the diversity
and annual dynamics of a group of coastal bacterioplankton (〉99% 16S rRNA
identity to Vibrio splendidus). We show that this group consists of at least a thousand
distinct genotypes, each occurring at extremely low environmental concentrations
(on average 〈1 cell/ml). Overall, the genomes show extensive allelic diversity and
size variation. Individual genotypes rarely recurred in samples and allelic
distribution did not show spatial or temporal substructure. Ecological
considerations suggest that much genotypic and possibly phenotypic variation
within natural populations should be considered neutral.
Description:
This work was supported by grants from the
Department of Energy Genomes to Life program and the National Science Foundation. Sequences have been submitted to Genbank under accession numbers
AY836800-AY837464.
Repository Name:
Woods Hole Open Access Server
Type:
Preprint
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