Genomic dissection of behavioral maturation in the honey bee

被引:183
作者
Whitfield, Charles W.
Ben-Shahar, Yehuda
Brillet, Charles
Leoncini, Isabelle
Crauser, Didier
Le Conte, Yves
Rodriguez-Zas, Sandra
Robinson, Gene E.
机构
[1] Univ Illinois, Dept Entomol, Urbana, IL 61801 USA
[2] Univ Illinois, Dept Anim Sci, Urbana, IL 61801 USA
[3] Univ Illinois, Neurosci Program, Urbana, IL 61801 USA
[4] Univ Illinois, Inst Genom Biol, Urbana, IL 61801 USA
[5] Univ Iowa, Coll Med, Howard Hughes Med Inst, Iowa City, IA 52242 USA
[6] Univ Avignon & Pays Vaucluse, INRA, Unite Mixte Rech, Lab Biol & Protect Abeille Ecol & Invertebres, F-84914 Avignon 9, France
关键词
D O I
10.1073/pnas.0606909103
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Honey bees undergo an age-related, socially regulated transition from working in the hive to foraging that has been previously associated with changes in the expression of thousands of genes in the brain. To understand the meaning of these changes, we conducted microarray analyses to examine the following: (i) the ontogeny of gene expression preceding the onset of foraging, (ii) the effects of physiological and genetic factors that influence this behavioral transition, and (fit) the effects of foraging experience. Although > 85% of approximate to 5,500 genes showed brain differences, principal component analysis revealed discrete influences of age, behavior, genotype, environment, and experience. Young bees not yet competent to forage showed extensive, age-related expression changes, essentially complete by 8 days of age, coinciding with previously described structural brain changes. Subsequent changes were not age-related but were largely related to effects of juvenile hormone (JH), suggesting that the increase in JH that influences the hive bee-forager transition may cause many of these changes. Other treatments that also influence the onset age of foraging induced many changes but with little overlap, suggesting that multiple pathways affect behavioral maturation. Subspecies differences in onset age of foraging were correlated with differences in JH and JH-target gene expression, suggesting that this endocrine system mediates the genetic differences. We also used this multifactorial approach to identify candidate genes for behavioral maturation. This successful dissection of gene expression indicates that, for social behavior, gene expression in the brain can provide a robust indicator of the interaction between hereditary and environmental information.
引用
收藏
页码:16068 / 16075
页数:8
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