Metaphase arrest in meiosis I or II before fertilization is a common and unique feature of oogenesis in many animal species. How and why oocytes from many species are arrested at metaphase, rather than after the completion of meiosis, has long remained a mystery. This article reviews recent advances in our understanding of the mechanisms and biological significance of meiotic metaphase arrest in animal oocytes.

中文翻译：

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动物卵母细胞减数分裂中期停滞：其机制和生物学意义。

受精前在减数分裂I或II中的中期停滞是许多动物卵子发生的共同而独特的特征。长期以来，如何和为什么将许多物种的卵母细胞停滞而不是在减数分裂完成后停滞，一直是一个谜。本文综述了我们对动物卵母细胞减数分裂中期停滞的机制和生物学意义的最新进展。