Acta Agriculturae Zhejiangensis ›› 2026, Vol. 38 ›› Issue (2): 217-224.DOI: 10.3969/j.issn.1004-1524.20250155

• Animal Science • Previous Articles     Next Articles

Impact of Israeli acute paralysis virus infection on the production of royal jelly in Apis mellifera ligustica

FAN Yingxi(), LIU Yao, ZHENG Qiulan, ZHENG Huoqing()   

  1. College of Animal Science, Zhejiang University, Hangzhou 310058, China
  • Received:2025-03-06 Online:2026-02-25 Published:2026-03-24

Abstract:

To investigate the impact of Israeli acute paralysis virus (IAPV) on royal jelly production in Apis mellifera ligustica, newly emerged worker bees were fed sucrose solutions containing three different concentrations of IAPV, following confirmation of the virus’s preferential infection of the hypopharyngeal and mandibular glands. Transcriptome sequencing was first employed to preliminarily assess the virus’s effects on royal jelly secretion. Subsequently, RT-qPCR and liquid chromatography were used to measure the relative expression levels of major royal jelly protein (mrjp) genes and the content of 10-hydroxy-2-decenoic acid (10-HDA), respectively. The results showed that high-concentration viral inoculation significantly reduced worker bee survival rates, with a median lifespan of only 16.5 days, and markedly disrupted protein and fatty acid synthesis pathways in the bees’ heads. Further analysis by RT-qPCR and liquid chromatography revealed that, by day 18, high-concentration viral infection led to a 96% decrease in mrjp1 gene expression and an 11.98 μg reduction per bee in 10-HDA content. These findings demonstrate that IAPV impairs royal jelly secretion by suppressing the synthesis of major royal jelly proteins and fatty acids.

Key words: Apis mellifera ligustica, Israeli acute paralysis virus, royal jelly, production trait

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