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Unless you go into more detail about the processes (including the biogenesis of cilia and flagellum)that form the basal body and spindle apparatus, I'd leave it as it is for now. In eukaryotes, most authors refer to the basal body as being similar(homologous)to the centriole. The centrosome refers to the central microtubule organizing center (MTOC) that the nine double or triplet microtubules grow out of to make up the centriole. In cilia and flagellum there are then two more microtubules in the middle of the centriole that form the basal body that the cilia or flagellum grow out of. The centriole forms the spindle for mitosis or the basal body for cilia and flagellum, but not all basal bodies are the same and they undergo a flagellar modification in different species, e.g., the flagellar hook-basal body complex with the protein FliE. Also, dyneins then move back down the centrosome microtubules to transport ATP toward the centrosome (MTOC).

In Dr. Jim Deacon, of the University of Edinburgh, Genetic's Glossary: "The centriole is a short cylindrical organelle, found in pairs arranged at right angles to each other at the centre of a microtubule organizing centre (MTOC) or centrosome, found in eukaryotes (except in higher plants). A centriole is similar in structure to the basal body found at the base of eukaryotic cilia and flagella and organises the axoneme, the bundle of microtubules and other proteins forming the core of each cilium or flagellum. The centrosome organizes formation of a spindle during mitosis or meiosis." http://helios.bto.ed.ac.uk/bto/glossary/c.htm

"[During the G1 and S phase of mitosis in mammalian cells] An older centriole differs functionally from a younger centriole by being able to assemble a primary cilium. This suggests a role for one or more of these proteins and for maturation in promoting the assembly of the cilium. Of those, only -tubulin has been identified to date in Chlamydomonas. In addition to the presence of the above proteins, the level of polyglutamylation on - and ß-tubulin is increased on older centrioles and on older basal bodies. Unlike centrioles, daughter basal bodies must mature early in their first cell cycle in order to assemble flagella or cilia and so for example, all basal bodies in the ciliated epithelium of the trachea have the ODF2 epitope (McKean et al., 2003). Therefore, there is a need for an additional maturation event in basal bodies which we refer to as early maturation and which must occur at M/G1 phase of the cell cycle rather than in G2/M phase, as for centrioles." From: "Mutations in -tubulin promote basal body maturation and flagellar assembly in the absence of -tubulin," by Sylvia Fromherz, Thomas H. Giddings, Jr, Natalia Gomez-Ospina1, and Susan K. Dutcher. Journal of Cell Science 117, 303-314 (2004). Published online at http://jcs.biologists.org/cgi/content/full/117/2/303

"In a confluent culture [of Chlamydomonas], Fa2p is observed lying on the presumptive ciliary SOFA and at the base of both centrioles, one of which is serving as the basal body. During mitosis, Fa2p is associated with the duplicated centrioles and then with the polar region of the mitotic spindle in the mouse cells, as it is in Chlamydomonas.” From: “Cilia and the cell cycle?” by Lynne M. Quarmby and Jeremy D.K. Parker, JCB, Volume 169, Number 5, 707-710. Published online at http://www.jcb.org/cgi/content/full/169/5/707