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首页> 外文期刊>Harmful Algae >Strong constitutive expression divergence among strains but no evidence of differential expression associated with sexual reproduction in Alexandrium minutum
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Strong constitutive expression divergence among strains but no evidence of differential expression associated with sexual reproduction in Alexandrium minutum

机译：菌株中强烈的本质表达分歧，但没有证据表达与亚历山大学中的性繁殖相关的差异表达

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摘要

Sexual reproduction remains poorly characterized in dinoflagellates. This is especially the case at the molecular level. Here crossing experiments were performed among strains of the toxic dinoflagellate Alexandrium minutum belonging to two genetically divergent groups. Gene expression was compared between sexually compatible and incompatible crosses at the time of gamete fusion and resting cyst (similar to zygote) formation. Not a single transcript was identified as differentially expressed between compatible and incompatible crosses at these two crucial time points of the dinoflagellate life cycle. However, several thousands of transcripts displayed constitutive expression differences between strains. This was especially the case between the strains belonging to the genetically divergent groups. A few hundreds of transcripts were also identified as differentially expressed between strains belonging to opposite mating types. Some of these transcripts displayed homology with the SxtA protein, known to be involved in saxitoxin production in cyanobacteria, as well as with proteins potentially involved in mating in fungi.
机译：性繁殖仍然含Dinoflageles的特征差。在分子水平尤其如此。在这里，在属于两个遗传发散基团的有毒含锡甘露群落的亚历山大芽孢杆菌的菌株中进行了交叉实验。在配子融合时的性兼容和不相容的交叉之间比较基因表达和休息囊肿（类似于Zygote）形成。不是单一的转录物被鉴定为在Dinoflagelate寿命周期的这两个关键时间点的相容和不相容的交叉之间差异表达。然而，数千名转录物在菌株之间显示了组成型表达差异。这是尤其是属于遗传分歧组的菌株之间的情况。还鉴定了几百个转录物，其在属于相反配合类型的菌株之间差异表达。这些转录物中的一些与SXTA蛋白显示同源性，已知参与蓝藻中的Saxitoxin产生，以及可能涉及在真菌中交配的蛋白质。

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  • 来源
    《Harmful Algae》 |2020年第12期|101940.1-101940.12|共12页
  • 作者

    Seveno Julie; Even Yasmine; Le Gac Mickael;

  • 作者单位

    IFREMER DYNECO PELAGOS F-29280 Plouzane France|Le Mans Univ Lab Mer Mol Sante F-72000 Le Mans France;

    Technopole Brest Iroise Inst Univ Europeen Mer CNRS UBO Lab Sci Environm Marin UMR 6539 F-29280 Plouzane France;

    IFREMER DYNECO PELAGOS F-29280 Plouzane France;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Sexual reproduction; Alexandrium minutum; Gene expression; Mating;

    机译：性繁殖;亚历山大只需一分钟;基因表达;交配;

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