Abstract：
:Both mating and reproduction strongly affect the physiology of insect females. In the ant Cardiocondyla obscurior, a comparison among virgin queens, mated queens, and queens mated with sterilized males ("sham-mated") allows to separate the different effects of mating and egg laying. Here, we investigate whether and how different mating status is reflected in the cuticular lipid profiles of queens, i.e., the blend of chemicals that is thought to signal a queen's fertility. Surprisingly, discriminant analyses failed to reliably distinguish among virgin, mated, and sham-mated queens. A generalized linear model on individual substances showed only very subtle differences. While mating appeared to be positively associated with the proportions of 3-MeC(25,) 11-/13-MeC(27), 5-MeC(27), 3-MeC(27), and 12-/14-MeC(28) and negatively with C(27:1), fecundity was negatively associated with C(29:1), C(31:1), and a sterol derivative. We discuss these results in the light of the special life history of C. obscurior, with completely sterile workers and low egg laying rates in queens.
journal_name
J Insect Physioljournal_title
Journal of insect physiologyauthors
Will S,Delabie JH,Heinze J,Ruther J,Oettler Jdoi
10.1016/j.jinsphys.2012.06.009subject
Has Abstractpub_date
2012-09-01 00:00:00pages
1245-9issue
9eissn
0022-1910issn
1879-1611pii
S0022-1910(12)00156-4journal_volume
58pub_type
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