Phylometagenomics of cycad coralloid roots reveals shared symbiotic signals.

ABSTRACT: Cycads are known to host symbiotic cyanobacteria, including Nostocales species, as well as other sympatric bacterial taxa within their specialized coralloid roots. Yet, it is unknown if these bacteria share a phylogenetic origin and/or common genomic functions that allow them to engage in facultative symbiosis with cycad roots. To address this, we obtained metagenomic sequences from 39 coralloid roots sampled from diverse cycad species and origins in Australia and Mexico. Culture-independent shotgun metagenomic sequencing was used to validate sub-community co-cultures as an efficient approach for functional and taxonomic analysis. Our metanalysis shows a host-independent microbiome core consisting of seven bacterial orders with high species diversity within the identified taxa. More

SUBMITTER: Bustos-Diaz ED 

PROVIDER: S-EPMC10999742 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature