Microheliella is a monotypic genus of protists containing the sole species M. maris, first described in 2012. It has a variety of unusual morphological characteristics which make its broader classification difficult. These include a centrosome with two concentric granular shells and axopodia much simpler in structure than in visually similar protists (other 'heliozoa').[1]
| Microheliella | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Clade: | Diaphoretickes |
| Clade: | CAM |
| Clade: | Pancryptista |
| Clade: | Cryptista |
| Subphylum: | Endohelia |
| Class: | Endohelea |
| Order: | Microhelida Cavalier-Smith 2011 |
| Family: | Microheliellidae Cavalier-Smith & Chao 2012 |
| Genus: | Microheliella Cavalier-Smith & Chao 2012 |
| Species: | M. maris
|
| Binomial name | |
| Microheliella maris Cavalier-Smith & Chao 2012
| |
Recent phylogenomic analyses suggest the microhelida are sister to the Cryptista, forming a clade called Pancryptista, which would be sister to the Archaeplastida.[2][3]
| CAM clade |
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References
edit- ^ Yabuki, A.; et al. (2012). "Microheliella maris (Microhelida ord. n.), an ultrastructurally highly distinctive new axopodial protist species and genus, and the unity of phylum Heliozoa". Protist. 163 (3): 356–388. doi:10.1016/j.protis.2011.10.001. PMID 22153838.
- ^ Yazaki, Euki; Yabuki, Akinori; Imaizumi, Ayaka; Kume, Keitaro; Hashimoto, Tetsuo; Inagaki, Yuji (2021-08-31). "Phylogenomics invokes the clade housing Cryptista, Archaeplastida, and Microheliella maris". pp. 2021.08.29.458128. bioRxiv 10.1101/2021.08.29.458128.
- ^ Yazaki, Euki; Yabuki, Akinori; Imaizumi, Ayaka; Kume, Keitaro; Hashimoto, Tetsuo; Inagaki, Yuji (2022). "The closest lineage of Archaeplastida is revealed by phylogenomics analyses that include Microheliella maris". Open Biol. 12: 210376. doi:10.1098/rsob.210376. PMC 9006020.