find out the difference between the Anoneme and centriole
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Answer:
centriole structure is conserved across the great majority of eukaryotes, there are a few groups, in insects and Heliozoa (Mikrjukov & Patterson 2001;Riparbelli et al., 2010), where this conservation is lost, and centriole structure becomes extremely variable, at least in the male germ line and axoneme (Normark, 2009). Typically, there is a proliferation of microtu- bules, with different numbers in closely related species (Figs 2 and 3a,b). This is perhaps a deeper enigma than the others, but one possible hint is a repeated associa- tion between centriole novelties and paternal genome elimination (PGE), a reproductive system in which all chromosomes of paternal origin are eliminated from the male germ line. ...
Answer:
Centriole/axoneme structures. (a) The structure of a typical centriole consists of a ring of nine microtubule triplets with two triplets in the middle (often referred to as the 9 + 2 structure). This structure is conserved in the vast majority of taxa that possess centrioles, with only minor variations. (b) The nine-fold symmetric pattern is also present in the axoneme, the centriole-derived cilia found, for example, in most sperm cells, although the axoneme consists of 9 doublets instead of the 9 triplets found in the centriole. (c) The alternative axoneme structure found in most insects (9 + 9 + 2) where the 9 doublets are surrounded by a ring of 9 singlets. Alternative structures without nine-fold symmetry have evolved just a handful of times, mostly in insects (Riparbelli et al., 2010), with the most highly aberrant axoneme structures in (d) scale insects and (e) cecidomyiid flies. The photographs show axonemes of (f) an armored scale insect (reprinted with permission from Robison, 1972) and (g) a cecidomyiid gall midge (courtesy Romano Dallai).