A Chromosome-Level Genome Assembly of Garlic (Allium sativum) Provides Insights into Genome Evolution and Allicin Biosynthesis

文献类型： 外文期刊

第一作者： Zhu, Siyuan

作者： Zhu, Siyuan;Cheng, Yi;Wang, Yanzhou;Liu, Chan;Yang, Zemao;Li, Fu;Zeng, Zheng;Tang, Qing;Gao, Chunsheng;Su, Jianguang;Liu, Touming;Sun, Xiudong;Li, Ningyang;Qiao, Xuguang;Liu, Shiqi;Guan, Mengjiao;Lu, Xiaoming;Han, Zhenlin;Pan, Yupeng;Meng, Huanwen;Cheng, Zhihui;Zhao, Jing;Li, Benping;Guo, Wu;Gao, Shuang;Zhao, Jian;Jiang, Wenkai;Zhao, Xing;Tian, Shilin;Lu, Li

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关键词： garlic genome; genome evolution; allicin; inulin neoseries-type fructans; expression profiling

期刊名称：MOLECULAR PLANT （ 影响因子：13.164； 五年影响因子：16.357 ）

ISSN： 1674-2052

年卷期： 2020 年 13 卷 9 期

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收录情况： SCI

摘要： Garlic, an economically important vegetable, spice, and medicinal crop, produces highly enlarged bulbs and unique organosulfur compounds. Here, we report a chromosome-level genome assembly for garlic, with a total size of approximately 16.24 Gb, as well as the annotation of 57 561 predicted protein-coding genes, making garlic the first Allium species with a sequenced genome. Analysis of this garlic genome assembly reveals a recent burst of transposable elements, explaining the substantial expansion of the garlic genome. We examined the evolution of certain genes associated with the biosynthesis of allicin and inulin neoseries-type fructans, and provided new insights into the biosynthesis of these two compounds. Furthermore, a large-scale transcriptome was produced to characterize the expression patterns of garlic genes in different tissues and at various growth stages of enlarged bulbs. The reference genome and large-scale transcriptome data generated in this study provide valuable new resources for research on garlic biology and breeding.

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