Harmonious naming across nomenclature codes exemplified by the description of bacterial isolates from the mammalian gut

A dual system for naming prokaryotes is currently in place based on the well-established International Code of Nomenclature of Prokaryotes (ICNP) and the newly created Code of Nomenclature of Prokaryotes Described from Sequence Data (SeqCode). Whilst recent creation of the SeqCode opened an avenue to accelerate the naming of uncultured taxa, the existence of two codes increases the risk of species being assigned multiple validly published names. In this work we present a workflow that aims to limit conflicts by firstly naming novel cultured taxa under the SeqCode, and secondly under the ICNP, enhancing the traceability of the taxa across the two codes. To exemplify this workflow, we describe four novel taxa isolated from the intestine of pigs: Intestinicryptomonas porci gen. nov., sp. nov. (strain CLA-KB-P66^T, genome accession GCA_033971905.1^TS) within a novel family, Intestinicryptomonaceae; Grylomicrobium aquisgranensis gen. nov., sp. nov. (CLA-KB-P133^T, GCA_033971865.1^TS); Absicoccus intestinalis sp. nov. (CLA-KB-P134^T, GCA_033971885.1^TS); and Mesosutterella porci sp. nov. (oilRF-744- wt-GAM-9^T, GCF_022134585.1^TS).