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Molecular Reproduction & Development Volume 84, Issue 4, April 2017
Publication year - 2017
Publication title -
molecular reproduction and development
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.745
H-Index - 105
eISSN - 1098-2795
pISSN - 1040-452X
DOI - 10.1002/mrd.22703
Subject(s) - biology , acrosome , sperm , reproduction , chemotaxis , microbiology and biotechnology , transgene , human fertilization , mitochondrion , evolutionary biology , genetics , gene , receptor
Chemotaxis guides the movement of ready‐to‐fertilize spermatozoa towards the egg, facilitating the interaction of these complementary gametes. Using a double‐transgenic mouse whose spermatozoa possess a green acrosome and red mitochondria, Guidobaldi et al. (this issue) observed that only those spermatozoa in possession of an intact acrosome can chemotactically orient. This phenomenon can be evaluated in this projection of sequential frames from a video of these motile, transgenic spermatozoa, wherein directional progression (red paths) is associated with sperm possessing intact acrosomes (green dots) .