10.5061/DRYAD.J2BB9
Toomer, Kevin H.
Cornell University
Chen, Xiuhua
Huazhong Agricultural University
Cornell University
Naito, Mizue
Cornell University
Mondo, Stephen J.
Cornell University
den Bakker, Henk C.
Cornell University
VanKuren, Nicholas W.
Cornell University
Lekberg, Ylva
University of Montana
Morton, Joseph B.
West Virginia University
Pawlowska, Teresa E.
Cornell University
Data from: Molecular evolution patterns reveal life history features of
mycoplasma-related endobacteria associated with arbuscular mycorrhizal
fungi
Dryad
dataset
2015
Mollicutes
Microbial Biology
Species interactions
Holocene
mycoplasma-related endobacteria
2015-05-27T15:47:54Z
2015-05-27T15:47:54Z
en
https://doi.org/10.1111/mec.13250
206351 bytes
1
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
The mycoplasma-related endobacteria (MRE), representing a recently
discovered lineage of Mollicutes, are widely distributed across arbuscular
mycorrhizal fungi (AMF, Glomeromycota). AMF colonize roots of most
terrestrial plants and improve plant mineral nutrient uptake in return for
plant-assimilated carbon. The role of MRE in the biology of their fungal
hosts is unknown. To start characterizing this association, we assessed
partitioning of MRE genetic diversity within AMF individuals and across
the AMF phylogeographic range. We further used molecular evolution
patterns to make inferences about MRE codivergence with AMF, their
lifestyle and antiquity of the Glomeromycota–MRE association. While we did
not detect differentiation between MRE derived from different continents,
high levels of diversity were apparent in MRE populations within AMF host
individuals. MRE exhibited significant codiversification with AMF over
ecological time and the absence of codivergence over evolutionary time.
Moreover, genetic recombination was evident in MRE. These patterns
indicate that, while MRE transmission is predominantly vertical, their
complex intrahost populations are likely generated by horizontal
transmission and recombination. Based on predictions of evolutionary
theory, we interpreted these observations as a suggestion that MRE may be
antagonists of AMF. Finally, we detected a marginally significant
signature of codivergence of MRE with Glomeromycota and the Endogone
lineage of Mucoromycotina, implying that the symbiosis between MRE and
fungi may predate the divergence between these two groups of fungi.
16S_rRNA_MRENexus file of 16S rRNA gene sequences from MRE.MBLFP_MRENexus
file of MBLFP gene sequences from MRE.
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