title: Proteomic analysis of Apis cerana and Apis mellifera larvae fed with heterospecific royal jelly and by CSBV challenge.
abstract: Chinese honeybee Apis cerana (Ac) is one of the major Asian honeybee species for local apiculture. However, Ac is frequently damaged by Chinese sacbrood virus (CSBV), whereas Apis mellifera (Am) is usually resistant to it. Heterospecific royal jelly (RJ) breeding in two honeybee species may result in morphological and genetic modification. Nevertheless, knowledge on the resistant mechanism of Am to this deadly disease is still unknown. In the present study, heterospecific RJ breeding was conducted to determine the effects of food change on the larval mortality after CSBV infection at early larval stage. 2-DE and MALDI-TOF/TOF MS proteomic technology was employed to unravel the molecular event of the bees under heterospecific RJ breeding and CSBV challenge. The change of Ac larval food from RJC to RJM could enhance the bee resistance to CSBV. The mortality rate of Ac larvae after CSBV infection was much higher when the larvae were fed with RJC compared with the larvae fed with RJM. There were 101 proteins with altered expressions after heterospecific RJ breeding and viral infection. In Ac larvae, 6 differential expression proteins were identified from heterospecific RJ breeding only, 21 differential expression proteins from CSBV challenge only and 7 differential expression proteins from heterospecific RJ breeding plus CSBV challenge. In Am larvae, 17 differential expression proteins were identified from heterospecific RJ breeding only, 26 differential expression proteins from CSBV challenge only and 24 differential expression proteins from heterospecific RJ breeding plus CSBV challenge. The RJM may protect Ac larvae from CSBV infection, probably by activating the genes in energy metabolism pathways, antioxidation and ubiquitin-proteasome system. The present results, for the first time, comprehensively descript the molecular events of the viral infection of Ac and Am after heterospecific RJ breeding and are potentially useful for establishing CSBV resistant populations of Ac for apiculture.
authors.affiliation: Guangdong Entomological Institute, Guangzhou, China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Guangdong Entomological Institute, Guangzhou, China.
authors.forename: Guozhi
authors.initials: G
authors.lastname: Zhang
authors.affiliation: Guangdong Entomological Institute, Guangzhou, China.
authors.forename: Xiu
authors.initials: X
authors.lastname: Huang
authors.affiliation: Guangdong Entomological Institute, Guangzhou, China.
authors.forename: Richou
authors.initials: R
authors.lastname: Han
mesh_terms: D000818:Animals; D001516:Bees / Q000276:immunology / Q000821:virology*; D001947:Breeding; D060467:Disease Resistance; D005227:Fatty Acids / Q000378:metabolism*; D054884:Host-Pathogen Interactions; D007304:Insect Viruses / Q000502:physiology*; D007814:Larva / Q000276:immunology / Q000502:physiology / Q000821:virology; D060066:Protein Interaction Maps; D020543:Proteome; D040901:Proteomics; D012328:RNA Viruses / Q000502:physiology*; D013045:Species Specificity; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization; D000099219:Royal Jelly
chemical_list: D005227:Fatty Acids; D020543:Proteome; D000099219:Royal Jelly
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