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Precedence of the first male sperm in successive matings in the Hymenoptera Diadromus pulchellus
Author(s) -
Agoze Mona El,
Poirié Marylène,
Périquet Georges
Publication year - 1995
Publication title -
entomologia experimentalis et applicata
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.765
H-Index - 83
eISSN - 1570-7458
pISSN - 0013-8703
DOI - 10.1111/j.1570-7458.1995.tb01934.x
Subject(s) - biology , sperm , mating , ichneumonidae , hymenoptera , ploidy , zoology , sperm competition , insect , parasitoid , genetics , botany , gene
In most insect species where double matings occur, sperm from the second male preferentially fertilize subsequent eggs. However, we demonstrate here that, as already shown for some other hymenopteran species, this is not the case in the ichneumonid wasp Diadromus pulchellus (Wesmeal): sperm from the first male usually father all the female progeny. This precedence of the first male sperm is also observed in double matings involving an haploid male and a diploid sterile male, whichever is the first mating male. We discuss the consequences of this phenomenon from an evolutionary point of view.