Assessing hygienic behavior of Apis mellifera unicolor (Hymenoptera: Apidae), the endemic honey bee from Madagascar

Rasolofoarivao Henriette, Delatte Hélène, Raveloson-Ravaomanarivo Lala Harivelo, Reynaud Bernard, Clémencet Johanna. 2015. Assessing hygienic behavior of Apis mellifera unicolor (Hymenoptera: Apidae), the endemic honey bee from Madagascar. Genetics and Molecular Research, 14 (2) : 5879-5889.

https://doi.org/10.4238/2015.June.1.5

Article de revue ; Article de recherche ; Article de revue à facteur d'impact Revue en libre accès total

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Quartile : Q4, Sujet : GENETICS & HEREDITY / Quartile : Q4, Sujet : BIOCHEMISTRY & MOLECULAR BIOLOGY

Résumé : Hygienic behavior (HB) is one of the natural mechanisms of honey bee for limiting the spread of brood diseases and Varroa destructor parasitic mite. Objective of our study was to measure HB of Apis mellifera unicolor colonies (N = 403) from three geographic regions (one infested and two free of V. destructor ) in Madagascar. The pin-killing method was used for evaluation of the HB. Responses were measured from 3 h 30 min to 7 h after perforation of the cells. Colonies were very effective in detecting perforated cells. In the first 4 h, on average, they detected at least 50% of the pin-killed brood. Six hours after cell perforation, colonies tested (N = 91) showed a wide range of uncapped (0 to 100%) and cleaned cells (0 to 82%). Global distribution of the rate of cleaned cells at 6 h was multimodal and hygienic responses could be split in three classes. Colonies from the three regions showed a significant difference in HB responses. Three hypotheses (geographic, genetic traits, presence of V. destructor ) are further discussed to explain variability of HB responses among the regions. Levels of HB efficiency of A. mellifera unicolor colonies are among the greatest levels reported for A. mellifera subspecies. Presence of highly hygienic colonies is a great opportunity for future breeding program in selection for HB.

Mots-clés Agrovoc : Apis mellifera, mécanisme de défense, lutte antiravageur, comportement animal, comportement collectif, Varroa, organisme indigène, Varroa destructor

Mots-clés géographiques Agrovoc : Madagascar

Mots-clés complémentaires : Apis mellifera unicolor

Classification Agris : L20 - Écologie animale
L70 - Sciences et hygiène vétérinaires - Considérations générales
L72 - Organismes nuisibles des animaux
L73 - Maladies des animaux

Champ stratégique Cirad : Axe 4 (2014-2018) - Santé des animaux et des plantes

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