Bidirectional incompatibility between conspecific populations of Drosophila simulans

Scott L. O'Neill, Timothy L. Karr

Research output: Contribution to journalArticle

280 Citations (Scopus)

Abstract

CYTOPLASMIC incompatibility (CI) describes the phenomenon whereby eggs fertilized by sperm from insects infected with a rickettsial endosymbiont fail to hatch. Unidirectional CI between conspecific populations of insects is a well documented phenomenon l-9 . Bidirectional CI has, however, only been described in mosquito populations 10 , and recently between closely related species of parasitic wasps 11 , where it is of interest as both an unusual form of reproductive isolation 1 and as a potential means of insect population suppression 12-15 . Here we report on the first known example of bidirectional CI between conspecific populations of Drosophila simulans. Further, we show that defects as early as the first cleavage division are associated with CI. This observation suggests that the cellular basis of CI involves disruption of processes before or during zygote formation and that CI arises from defects in the structure and/or function of the sperm during fertilization.

Original languageEnglish (US)
Pages (from-to)178-180
Number of pages3
JournalNature
Volume348
Issue number6297
DOIs
StatePublished - Jan 1 1990
Externally publishedYes

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Insects
Zygote
Population
Spermatozoa
Reproductive Isolation
Wasps
Culicidae
Fertilization
Drosophila simulans

ASJC Scopus subject areas

  • General

Cite this

Bidirectional incompatibility between conspecific populations of Drosophila simulans. / O'Neill, Scott L.; Karr, Timothy L.

In: Nature, Vol. 348, No. 6297, 01.01.1990, p. 178-180.

Research output: Contribution to journalArticle

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