Publications

TitleAdaptive radiation by waves of gene transfer leads to fine-scale resource partitioning in marine microbes.
Publication TypeJournal Article
Year2016
AuthorsHehemann J-, Arevalo P, Datta MS, Yu X, Corzett CH, Henschel A, Preheim SP, Timberlake S, Alm EJ, Polz MF
JournalNat Commun
Volume7
Pagination12860
Date2016 Sep 22
ISSN2041-1723
Abstract

Adaptive radiations are important drivers of niche filling, since they rapidly adapt a single clade of organisms to ecological opportunities. Although thought to be common for animals and plants, adaptive radiations have remained difficult to document for microbes in the wild. Here we describe a recent adaptive radiation leading to fine-scale ecophysiological differentiation in the degradation of an algal glycan in a clade of closely related marine bacteria. Horizontal gene transfer is the primary driver in the diversification of the pathway leading to several ecophysiologically differentiated Vibrionaceae populations adapted to different physical forms of alginate. Pathway architecture is predictive of function and ecology, underscoring that horizontal gene transfer without extensive regulatory changes can rapidly assemble fully functional pathways in microbes.

DOI10.1038/ncomms12860
Alternate JournalNat Commun
PubMed ID27653556
PubMed Central IDPMC5036157
Grant ListT32 GM087237 / GM / NIGMS NIH HHS / United States
UL1 TR001863 / TR / NCATS NIH HHS / United States
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