Jakobids are an order of free-living, heterotrophic, flagellareukaryotes in the supergroup Excavata. They are small (less than 15 μm), and can be found in aerobic and anaerobic environments.[3][4][5] The order Jakobida, believed to be monophyletic, consists of only twenty species at present, and was classified as a group in 1993.[3][5][6] There is ongoing research into the mitochondrial genomes of jakobids, which are unusually large and bacteria-like, evidence that jakobids may be important to the evolutionary history of eukaryotes.[4][7]
Molecular phylogenetic evidence suggests strongly that jakobids are most closely related to Heterolobosea (Percolozoa) and Euglenozoa.[8]
^Cavalier-Smith T (1997). "Amoeboflagellates and Mitochondrial Cristae in Eukaryote Evolution: Megasystematics of the New Protozoan Subkingdoms Eozoa and Neozoa". Archiv für Protistenkunde. 147: 237–258.
^ abO'Kelly, Charles J. (1993). "The Jakobid flagellates: structural features of Jakoba, Reclinomonas, and Histonia and implications for the early diversification of eukaryotes". Journal of Eukaryotic Microbiology. 40 (5): 627–636. doi:10.1111/j.1550-7408.1993.tb06120.x. S2CID85938682.
^Simpson, Alastair G. B. (2017). "Jakobids". In Archibald, John M.; Simpson, Alastair G. B.; Slamovits, Claudio H. (eds.). Handbook of the Protists. Springer, Cham. pp. 973–1003. doi:10.1007/978-3-319-28149-0_6. ISBN978-3-319-28147-6.
^Lara, Enrique; Chatzinotas, Antonis; Simpson, Alastair G. B. (2006). "Andalucia (n. gen.)—the Deepest Branch Within Jakobids (Jakobida; Excavata), Based on Morphological and Molecular Study of a New Flagellate from Soil". Journal of Eukaryotic Microbiology. 53 (2): 112–120. doi:10.1111/j.1550-7408.2005.00081.x. PMID16579813. S2CID19092265.