Acquisition of deleterious mutations during potato polyploidization

文献类型： 外文期刊

第一作者： Lian, Qun

作者： Lian, Qun;Tang, Die;Bai, Zhiyan;Huang, Sanwen;Zhang, Chunzhi;Lian, Qun;Qi, Jianjian;Lu, Fei;Lu, Fei

作者机构：

期刊名称：JOURNAL OF INTEGRATIVE PLANT BIOLOGY （ 影响因子：7.061； 五年影响因子：6.002 ）

ISSN： 1672-9072

年卷期： 2019 年 61 卷 1 期

页码：

收录情况： SCI

摘要： Potatoes (Solanum tuberosum L.) represent an important tuber crop, worldwide. During its prolonged clonal propagation, numerous deleterious mutations have accumulated in the potato genome, leading to severe inbreeding depression; however, the shaping of this mutation burden during polyploidization and improvement is largely unknown. Here, we sequenced 20 diploid landraces of the Stenotomum group, eight tetraploid landraces, and 20 tetraploid modern cultivars, to analyze variations in their deleterious mutations. We show that deleterious mutations accumulated rapidly during the polyploidization of tetraploid potatoes. This study provides a foundation for future potato improvement.

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