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  • MicroRNA signatures characterizing caste-independent ovarian activity in queen and worker honeybees (Apis mellifera L.)

    Author(s)
    Macedo, LMF
    Nunes, FMF
    Freitas, FCP
    Pires, CV
    Tanaka, ED
    Martins, JR
    Piulachs, M-D
    Cristino, AS
    Pinheiro, DG
    Simoes, ZLP
    Griffith University Author(s)
    Cristino, Alex
    Year published
    2016
    Metadata
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    Abstract
    Queen and worker honeybees differ profoundly in reproductive capacity. The queen of this complex society, with 200 highly active ovarioles in each ovary, is the fertile caste, whereas the workers have approximately 20 ovarioles as a result of receiving a different diet during larval development. In a regular queenright colony, the workers have inactive ovaries and do not reproduce. However, if the queen is sensed to be absent, some of the workers activate their ovaries, producing viable haploid eggs that develop into males. Here, a deep-sequenced ovary transcriptome library of reproductive workers was used as supporting data ...
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    Queen and worker honeybees differ profoundly in reproductive capacity. The queen of this complex society, with 200 highly active ovarioles in each ovary, is the fertile caste, whereas the workers have approximately 20 ovarioles as a result of receiving a different diet during larval development. In a regular queenright colony, the workers have inactive ovaries and do not reproduce. However, if the queen is sensed to be absent, some of the workers activate their ovaries, producing viable haploid eggs that develop into males. Here, a deep-sequenced ovary transcriptome library of reproductive workers was used as supporting data to assess the dynamic expression of the regulatory molecules and microRNAs (miRNAs) of reproductive and nonreproductive honeybee females. In this library, most of the differentially expressed miRNAs are related to ovary physiology or oogenesis. When we quantified the dynamic expression of 19 miRNAs in the active and inactive worker ovaries and compared their expression in the ovaries of virgin and mated queens, we noted that some miRNAs (miR-1, miR-31a, miR-13b, miR-125, let-7 RNA, miR-100, miR-276, miR-12, miR-263a, miR-306, miR-317, miR-92a and miR-9a) could be used to identify reproductive and nonreproductive statuses independent of caste. Furthermore, integrative gene networks suggested that some candidate miRNAs function in the process of ovary activation in worker bees.
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    Journal Title
    Insect Molecular Biology
    Volume
    25
    Issue
    3
    DOI
    https://doi.org/10.1111/imb.12214
    Subject
    Biological sciences
    Science & Technology
    Life Sciences & Biomedicine
    Biochemistry & Molecular Biology
    Entomology
    microRNA
    Publication URI
    http://hdl.handle.net/10072/409774
    Collection
    • Journal articles

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