AI Article Synopsis
- Harmful algal blooms (HABs) pose a threat to water supplies and human health, but there is disagreement among researchers about how to classify different species within this taxon.
- While traditional methods recognize several morphospecies with diverse ecologies, DNA analyses suggest these may actually represent a single species with various ecotypes.
- A pangenome analysis of 122 genomes revealed at least 16 distinct genospecies, which can improve taxonomic clarity and help address ongoing challenges in eco-evolutionary research and management of HABs.
Article Abstract
, a common harmful algal bloom (HAB) taxon, threatens water supplies and human health, yet species delimitation is contentious in this taxon, leading to challenges in research and management of this threat. Historical and common morphology-based classifications recognize multiple morphospecies, most with variable and diverse ecologies, while DNA sequence-based classifications indicate a single species with multiple ecotypes. To better delimit species, we conducted a pangenome analysis of 122 genomes. Core- and non-core gene phylogenetic analyses placed 113 genomes into 23 monophyletic clusters containing at least two genomes. Overall, genome-related indices revealed that contains at least 16 putative genospecies. Fifteen genospecies included at least one morphospecies, and 10 genospecies included two or more morphospecies. This classification system will enable consistent taxonomic identification of and thereby aid in resolving some of the complexities and controversies that have long characterized eco-evolutionary research and management of this important HAB taxon.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9839332 | PMC |
| http://dx.doi.org/10.1126/sciadv.add3783 | DOI Listing |
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