allospermとは 意味・読み方・使い方

名詞

allosperm (countable かつ uncountable, 複数形 allosperms)

1. (biology) Sperm that has been received from another organism.
   • 2000, Robert T. Dillon, The Ecology of Freshwater Molluscs, ISBN 1139426990, page 80:

     They seem to have mechanisms that favour fertilization by allosperm (donated by a partner) over autosperm (produced endogenously).

   • 2010, Janet Leonard & ‎Alex Cordoba-Aguilar, The Evolution of Primary Sexual Characters in Animals, ISBN 0195325559, page 176:

     The latter have a well-defined allosperm storage organ, called spermatheca, attached to their fertilization pouch (Baur, this book).

   • 2010, Nils Anthes, ‎Peter M. Kappeler, & ‎Ralph Bergmüller, Animal Behaviour: Evolution and Mechanisms, ISBN 3642026249, page 340:

     This is consistent with theory that predicts a preference for the female mating role after periods of sexual isolation because of allosperm depletion.

   • 2011, Gregory A. Lewbart, Invertebrate Medicine, ISBN 0813817587, page 101:

     During copulation, the penis deposits the autosperm (which now become allosperm) into the vaginal channel of the distal hermaphroditic duct of another animal. The allosperm then travel to the spermatotheca.

使用する際の注意点

This term is used primarily when discussing hermaphroditic organisms, to resolve the ambiguity of where sperm within the organism originated.

関連する語

• autosperm