The Aegilops tauschii genome reveals multiple impacts of transposons

文献类型： 外文期刊

第一作者： Zhao, Guangyao

作者： Zhao, Guangyao;Zou, Cheng;Gao, Lifeng;Liu, Xu;Mao, Long;Kong, Xiuying;Jia, Jizeng;Li, Kui;Wang, Kai;Jiang, Wenkai;Li, Tianbao;Zhang, Xiaoxia;Jiao, Yuannian;Wang, Hongjin;Yang, Zujun

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期刊名称：NATURE PLANTS （ 影响因子：15.793； 五年影响因子：17.349 ）

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收录情况： SCI

摘要： Wheat is an important global crop with an extremely large and complex genome that contains more transposable elements (TEs) than any other known crop species. Here, we generated a chromosome-scale, high-quality reference genome of Aegilops tauschii, the donor of the wheat D genome, in which 92.5% sequences have been anchored to chromosomes. Using this assembly, we accurately characterized genic loci, gene expression, pseudogenes, methylation, recombination ratios, microRNAs and especially TEs on chromosomes. In addition to the discovery of a wave of very recent gene duplications, we detected that TEs occurred in about half of the genes, and found that such genes are expressed at lower levels than those without TEs, presumably because of their elevated methylation levels. We mapped all wheat molecular markers and constructed a high-resolution integrated genetic map corresponding to genome sequences, thereby placing previously detected agronomically important genes/quantitative trait loci (QTLs) on the Ae. tauschii genome for the first time.

分类号： Q94

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