Microbial Mat Metagenomes from Waikite Valley, Aotearoa New Zealand

Beatrice Tauer; Elizabeth Trembath-Reichert; L. M. Ward

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arXiv · 2412.01649

Microbial Mat Metagenomes from Waikite Valley, Aotearoa New Zealand

Beatrice Tauer·Elizabeth Trembath-Reichert·L. M. Ward

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Abstract

The rise of complex multicellular ecosystems Neoproterozoic time was preceded by a microbial Proterozoic biosphere, where productivity may have been largely restricted to microbial mats made up of bacteria including oxygenic photosynthetic Cyanobacteria, anoxygenic phototrophs, and heterotrophs. In modern environments, analogous microbial mats can be found in restricted environments such as carbonate tidal flats and terrestrial hot springs. Here, we report metagenomic sequence data from an analog in the hot springs of Waikite Valley, Aotearoa New Zealand, where carbon-rich, slightly-alkaline geothermal waters support diverse phototrophic microbial mats. The Waikite Valley hot spring in the Taupo Volcanic Zone of Aotearoa New Zealand was sampled in duplicate at 8 points along a temperature gradient transect of the outflow, from ~62 C (near the source) to ~37 C (~100 meters downstream). ~686 Gb of shotgun metagenomic sequence data was generated by Illumina Novaseq. Each sample was assembled using SPAdes, followed by binning of metagenome-assembled genomes (MAGs) by MetaBAT. These data are useful for the genomic analysis of novel phototrophic bacteria, as well as for ecological comparisons between thermophilic communities with varying temperatures but otherwise similar conditions.

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Beatrice Tauer, Elizabeth Trembath-Reichert, L. M. Ward. 2024-12-02. Microbial Mat Metagenomes from Waikite Valley, Aotearoa New Zealand. https://arxiv.org/abs/2412.01649

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