Details

Autor(en) / Beteiligte

• Rousset, François
• Raymond, Michel
• Kjellberg, Finn

Titel

Cytoplasmic incompatibilities in the mosquito Culex pipiens: How to explain a cytotype polymorphism?

Ist Teil von

• Journal of evolutionary biology, 1991-01, Vol.4 (1), p.69-81

Ort / Verlag

Oxford, UK: Blackwell Science Ltd

Erscheinungsjahr

1991

Link zum Volltext

Quelle

Free E-Journal (出版社公開部分のみ）

Beschreibungen/Notizen

• Although cytoplasmic incompatibilities have been used as a means of eradicating the mosquito Culex pipiens, the population dynamics of these sterilities in relation to the coexistence of multiple incompatible cytotypes in a single area has not been investigated, except in the case of two unidirectionally incompatible cytotypes. An analytical model of the evolution of n cytotypes in an infinite panmictic population has been developed in order to investigate polymorphic equilibrium. A necessary criterion for the stability of such an equilibrium is established; it is shown that a stable polymorphism cannot exist between incompatible cytotypes. This result is discussed in the light of population dynamics and genetics of Culex pipiens, and of our present knowledge on incompatibilities. The consequences of a geographic structuring and of homogamy are considered. A careful reconsideration of previous experimental results disclosed probable nuclear effects and a serious experimental weakness: with the common procedure of backcrossing hybrid females to males of constant genotype it is not possible to rule out probable nuclear effects with paternal expression. It is concluded that incompatibilities in Culex pipiens may have a nuclear‐cytoplasmic determinism.