Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí sinh học Journal of Biology đề tài: Laboratory evolution of host plant utilization in the bean weevil | Genet Sei Evol 1995 27 491-502 Elsevier INRA 491 Original article Laboratory evolution of host plant utilization in the bean weevil Acanthoscelides obtectus N Tucic D Milanovic s Mikuljanac University of Belgrade Institute for Biological Research and Faculty of Science Belgrade Serbia Received 4 August 1994 accepted 29 August 1995 Summary - Populations of the bean weevil Acanthoscelides obtectus were subjected to 35 generations of artificial selection for characteristics affecting host utilization when females were exposed to a choice between 2 hosts Phascolus vulgaris and Cicer arietinum or exposed to natural selection for the same period when only one host was available. We obtained a positive response for the percentage of eclosed adults on the chickpea seeds in the C choice lines but not in the Phaseolus lines. In the post-selection test we demonstrated that oviposition preference and egg-to-adult viability in the Cicer lines were higher on the chickpea than on the bean seeds. Lines that had been selected for female oviposition preference on chickpea displayed the same preference for this host after selection was terminated as lines that had been maintained on chickpea seeds without choice. Acanthoscelides obtectus larval density selection oviposition preference Resume Evolution en laboratoire de 1 utilisation de la plante hôte chez le charangon du haricot Acanthoscelides obtectus . Des populations de charangon du haricot Acan-thoscelides obtectus l ont été soumises à 35 generations de selection pour des caractères affectant I utilisation de la plante hôte avec un choix possible pour les femelles entre 2 hôtes Phaseolus vulgaris OU Cicer ariesinum OU soumises à la selection naturelie durant le meme nombre de generations sans choix de 1 hôte. Une réponse positive en pourcentage d adultes éclos est obtenue dans les lignées choisissant Cicer mats non dans celles choisis-sant Phaseolus. Dans les comparaisons effectuees à I issue de la selection on montre que
