''Breviata anathema'' is a single-celled flagellate

amoeboid An amoeba (; less commonly spelled ameba or amœba; plural ''am(o)ebas'' or ''am(o)ebae'' ), often called an amoeboid, is a type of cell or unicellular organism with the ability to alter its shape, primarily by extending and retracting pseudopo ...

eukaryote, previously studied under the name ''

Mastigamoeba ''Mastigamoeba'' is a genus of peolobionts, and treated by some as members of the Archamoebae group of protists. ''Mastigamoeba ''are characterized as anaerobic, amitochondriate organisms that are polymorphic. Their dominant life cycle stage i ...

invertens''. The cell lacks mitochondria but has remnant mitochondrial genes, and possesses an organelle believed to be a modified

anaerobic Anaerobic means "living, active, occurring, or existing in the absence of free oxygen", as opposed to aerobic which means "living, active, or occurring only in the presence of oxygen." Anaerobic may also refer to: * Anaerobic adhesive, a bonding a ...

mitochondrion, similar to the

mitosomes A mitosome is an organelle found in some unicellular eukaryotic organisms, like in members of the supergroup Excavata. The mitosome was found and named in 1999, and its function has not yet been well characterized. It was termed a ''crypton'' by o ...

and

hydrogenosomes A hydrogenosome is a membrane-enclosed organelle found in some anaerobic ciliates, flagellates, and fungi. Hydrogenosomes are highly variable organelles that have presumably evolved from protomitochondria to produce molecular hydrogen and ATP i ...

found in other eukaryotes that live in low-oxygen environments. Early molecular data placed ''Breviata'' in the Amoebozoa, but without obvious affinity to known amoebozoan groups. More recently,

phylogenomic Phylogenomics is the intersection of the fields of evolution and genomics. The term has been used in multiple ways to refer to analysis that involves genome data and evolutionary reconstructions. It is a group of techniques within the larger fields ...

analysis has shown that the class Breviatea is a sister group to the Opisthokonta and Apusomonadida. Together, these three groups form the clade Obazoa (the term Obazoa is based on an acronym of Opisthokonta, Breviatea, and Apusomonadida, plus ‘zóa’ (pertaining to ‘life’ in Greek)).

Taxonomy

* Class

Breviatea ''Breviata anathema'' is a single-celled flagellate amoeboid eukaryote, previously studied under the name ''Mastigamoeba invertens''. The cell lacks mitochondria but has remnant mitochondrial genes, and possesses an organelle believed to be a mod ...

Cavalier-Smith 2004 rotamoebaeref> ** Order Breviatida Cavalier-Smith 2004 *** Family Breviatidae Cavalier-Smith 2012 **** Genus ''Breviata'' Walker, Dacks & Martin Embley 2006 ***** Species ''

Breviata anathema ''Breviata anathema'' is a single-celled flagellate amoeboid eukaryote, previously studied under the name '' Mastigamoeba invertens''. The cell lacks mitochondria but has remnant mitochondrial genes, and possesses an organelle believed to be a ...

'' (Klebs 1892) Walker, Dacks & Martin Embley 2006 'Mastigamoeba_invertens''_Klebs_1892.html" ;"title="Mastigamoeba_invertens.html" ;"title="'Mastigamoeba invertens">'Mastigamoeba invertens'' Klebs 1892">Mastigamoeba_invertens.html" ;"title="'Mastigamoeba invertens">'Mastigamoeba invertens'' Klebs 1892**** Genus ''Lenisia limosa'' Hamann et al. 2016 ***** Species ''Lenisia limosa'' Hamann et al. 2016 **** Genus ''Pygsuia'' Brown et al. 2013 ***** Species ''Pygsuia biforma'' Brown et al. 2013 **** Genus '' Subulatomonas'' Katz et al. 2011 ***** Species '' Subulatomonas tetraspora'' Katz et al. 2011

References

Obazoa Eukaryote genera {{Unikont-stub