Differential expressions of nuclear proteomes between honeybee (Apis mellifera L.) queen and worker larvae: A deep insight into caste pathway decisions
文献类型: 外文期刊
第一作者: Begna, Desalegn
作者: Begna, Desalegn;Han, Bin;Feng, Mao;Fang, Yu;Li, Jianke
作者机构:
关键词: caste;honeybee;nucleus;pathway;proteome
期刊名称:JOURNAL OF PROTEOME RESEARCH ( 影响因子:4.466; 五年影响因子:4.352 )
ISSN:
年卷期:
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收录情况: SCI
摘要: Honeybees (Apis mellifera L.) possess individuals (castes) in their colonies, to which specific tasks are allocated. Owing to a difference in nutrition, the young female larvae develop into either a fertile queen or a sterile worker. Despite a series of investigations on the underlying mechanisms of honeybee caste polyphenism, information on proteins and enzymes involved in DNA and RNA regulation in the nucleus is still missing. The techniques of nuclear protein enrichment, two-dimensional electrophoresis, mass spectrometry and bioinformatics were applied to understand the nuclear proteome changes in response to changes in environmental settings (nutrition and time) during the early developmental stages at the third (72 h), fourth (96 h), and fifth (120 h) instars of the two caste intended larvae. A total of 120 differentially expressed nuclear proteins were identified in both caste intended larvae during these developmental stages. The third, fourth and fifth instars of queen prospective larvae expressed 69%, 84%, and 68% of the proteins that had altered expression, respectively. Particularly, the prospective queen larvae up-regulated most of the proteins with nuclear functions. In general, this changing nuclear proteome of the two caste intended larvae over the three developmental stages suggests variations in DNA and RNA regulating proteins and enzymes. These variations of proteins and enzymes involved in DNA and RNA regulation in response to differential nutrition between the two caste intended larvae lead the two caste larvae to pursue different developmental trajectories. Hence, this first data set of the nuclear proteome helps us to explore the innermost biological makings of queen and worker bee castes as early as before the 72 h (3rd instar). Also, it provides new insights into the honeybee's polymorphism at nuclear proteome level and paves new ways to understand mechanisms of caste decision in other eusocial insects.
分类号: Q7
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