Gingerich P. auteur aut IRD Borsa Philippe auteur aut IRD Suckling D.M. auteur aut IRD Brun Luc-Olivier auteur aut IRD text journalArticle eng text/pdf reformatted digital access An estimate of the inbreeding coefficient, Fis, of the coffee berry borer, Hypothenemus hampei Ferrari, was calculated from genotype frequencies of endosulfan resistance in beetles collected from berries in 41 fields on the East Coast of New Caledonia. Two different estimates were obtained as a function of sampling date : Fis = 0,491 + ou - 0,059 (s.e.) for samples collected in September, and Fis = 0,215 + ou - 0,108 for samples collected in April. These values of Fis are very high in comparison to those of more insects, but surprisingly low given current understandings of H. hampei mating patterns. The difference between April and September Fis estimates is discussed in terms of insecticide regimes and seasonal variability of sib inbreeding levels. The high level of inbreeding in the coffee berry borer increases frequencies of homozygotes relative to heterozygotes. Inbreeding will accelerate resistance evolution whenever the fitness of homozygous resistant insects exceeds that of heterozygotes, and will undermine any high - dose strategy to control resistance evolution. (Résumé d'auteur) specialized INSECTE NUISIBLE PHYTOPHAGE CAFE CONSANGUINITE GENOTYPE ESSAI BIOLOGIQUE INSECTICIDE CHIMIQUE RESISTANCE ANALYSE STATISTIQUE HOMOZYGOTE HETEROZYGOTE NOUVELLE CALEDONIE 076RAVPLA04 86 667-674 1996 0007-4853 https://www.documentation.ird.fr/hor/fdi:010010071 0007-4853 [F B010010071] https://www.documentation.ird.fr/hor/fdi:010010071 https://horizon.documentation.ird.fr/exl-doc/pleins_textes/pleins_textes_6/b_fdi_47-48/010010071.pdf IRD - Base Horizon / Pleins textes 1997-05-14 2017-08-07 fdi:010010071 fre