The species of Oryza rufipogon. dw was first discovered at Dongxiang, Jiangxi in 1978. It is recognized as abundant in genetic resources with the characteristics of cold and insect resistance. A total of 100.15 Gb raw data was obtained from seven pair-end libraries by Illumina Hiseq4000 platform. Subsequently, a draft assembly genome of O. rufipogon. dw was generated with a final size of 422.7 Mb with a contig N50 of 15 kb and a scaffold N50 of 296.2 bb. The assembly genome size was higher than the estimated genome size (413 Mb) based on k-mer analysis. The identified repeat sequences accounted for 40.09% of the entire genome, and 32,521 protein-coding genes with an average of 4.59 exons per gene was annotated in five databases. Phylogenetic analysis using 1460 single-copy gene, O. rufipogon. dw was close with O. rufipogon by Bayes method. The wild rice species of O. rufipogon. dw divergence was estimated at ∼0.3 million years ago (Mya) from O. rufipogon, and ∼0.6 Mya from the O. sativa. The draft genome of O. rufipogon. dw provided an essential resource for its origin and evolution study.

中文翻译：

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稻米rufipogon的进化研究。dw通过全基因组测序。

Oryza rufipogon的种类。dw于1978年首次发现于江西东乡。它被认为具有丰富的遗传资源，具有抗寒和抗虫的特性。Illumina Hiseq4000平台从七个配对末端库中获得了总计100.15 Gb的原始数据。随后，建立了红景天的装配基因组草图。dw的最终大小为422.7 Mb，重叠群N50为15 kb，支架N50为296.2 bb。装配的基因组大小高于基于k-mer分析的估计基因组大小（413 Mb）。鉴定出的重复序列占整个基因组的40.09％，并在五个数据库中标注了32,521个蛋白质编码基因，每个基因平均4.59个外显子。系统发育分析，使用1460单拷贝基因O. rufipogon。通过贝叶斯方法，dw与红景天很接近。rufipogon的野生稻种。dw的发散度据估计是由红景天（O. rufipogon）形成的，距今约30万年前（Mya），而来自紫花苜蓿的发散度约为0.6。红景天的基因组草图。dw为它的起源和进化研究提供了必要的资源。