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Structural characterization of procentrioles in Drosophila spermatids
Author(s) -
Gottardo Marco,
Callaini Giuliano,
Riparbelli Maria Giovanna
Publication year - 2015
Publication title -
cytoskeleton
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.95
H-Index - 86
eISSN - 1949-3592
pISSN - 1949-3584
DOI - 10.1002/cm.21260
Subject(s) - biology , drosophila (subgenus) , drosophila melanogaster , microbiology and biotechnology , evolutionary biology , genetics , gene
Male gametogenesis in insects is unusual in that the centrioles do not duplicate during the second meiosis and the differentiating spermatids inherit only one centriole. Here it is showed that a distinct procentriole is assembled close to the proximal region of the centriole in early S13 spermatids at the onion stage, confirming previous reports of a proximal centriole‐like structure at the proximal end of the spermatid centriole. However, the procentrioles of Drosophila spermatids do not behave like true procentrioles, but their development is blocked at an early stage before the assembly of a complete A‐tubule set. Therefore, they may represent early frozen stages of procentriole assembly that do not develop further and eventually disappear in late spermatids. © 2015 Wiley Periodicals, Inc.