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第一作者:Xiudong Sun
第一单位:山东农业大学
通讯作者:Touming Liu
Abstract
背景回顾: Garlic, an economically important vegetable, spice, and medicinal crop, produces highly enlarged bulbs and unique organosulfur compounds.
主要研究:Here, we report a chromosome-level genome assembly for garlic, with a total size of approximately 16.24 gigabases, and its annotation of 57,561 predicted protein-coding genes, placing garlic as the first species with a sequenced genome in the genus Allium to date. 结果-转座元件:The assembly reveals a recent burst of transposable elements, explaining the substantial expansion of the garlic genome and considerable evolution of certain genes associated with the biosynthesis of allicin and inulin neoseries-type fructans; these findings provide insights into the biosynthesis of these two compounds. 结果-转录组: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. 结论:The reference genome and large-scale transcriptome data generated in this study provide new valuable resources for research on garlic biology and breeding.
摘 要
大蒜是一种经济蔬菜、香料和医用作物,会形成高度膨大的鳞茎以及独特的有机硫化合物。本文中,作者报道了大蒜染色体级别的参考基因组,大小约为16.24 Gb,共包含57561个蛋白编码基因,是葱属中第一个完成全基因组测序的物种。基于该参考基因组,作者发现大蒜在近期经历了一次转座元件爆发,解释了大蒜基因组的大幅度扩张。另外,这次转座元件的爆发也解释了与大蒜素和菊粉类新型果聚糖生物合成相关基因的演化,为这两个化合物的生物合成提供了新的视野。此外,作者还通过大规模的转录组数据来表征了大蒜不同组织以及膨大鳞茎不同发育时期的基因表达模式。本文所报道的大蒜参考基因组与转录组为大蒜生物学研究以及育种项目提供了宝贵的资源。
通讯作者
**刘头明** 个人简介: 2003-2009年,华中农业大学,硕、博士。 研究方向: 作物基因组学、作物性状遗传及分子生物学机制解析。
doi: 10.1016/j.molp.2020.07.019
Journal: Molecular Plant
Published date: July 27, 2020
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