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S. pombe linear elements: the modest cousins of synaptonemal complexes.

机译:粟酒裂殖酵母线性元素:突触复合物的温和表亲。

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摘要

Synaptonemal complexes (SCs) are not formed during meiotic prophase in the fission yeast, Schizosaccharomyces pombe. Instead, so-called linear elements (LinEs) are formed at the corresponding stages. LinEs are remarkable in that their number does not correspond to the number of chromosomes or bivalents and that the changes in their organisation during prophase do not evidently reflect the pairing of chromosomes. Yet, LinEs are necessary for full meiotic pairing levels and for meiotic recombination. In this review, the composition of LinEs, their evolutionary relationship to SCs and their possible functions are discussed.
机译:在裂殖酵母粟酒裂殖酵母的减数分裂前期未形成突触复合物(SCs)。而是在相应的阶段形成所谓的线性元素(LinE)。 LinE的显着之处在于它们的数量与染色体或二价染色体的数量不对应,并且前期组织的变化没有明显反映出染色体的配对。然而,LinE对于完整的减数分裂配对水平和减数分裂重组是必需的。在这篇综述中,讨论了LinE的组成,它们与SC的进化关系以及可能的功能。

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