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首页> 外文期刊>Comparative and functional genomics >Enriching Genomic Resources and Transcriptional Profile Analysis of Miscanthus sinensis under Drought Stress Based on RNA Sequencing
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Enriching Genomic Resources and Transcriptional Profile Analysis of Miscanthus sinensis under Drought Stress Based on RNA Sequencing

机译:基于RNA测序的干旱胁迫下中国芒草的基因组资源丰富和转录谱分析

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Miscanthus × giganteus is wildly cultivated as a potential biofuel feedstock around the world; however, the narrow genetic basis and sterile characteristics have become a limitation for its utilization. As a progenitor of M. × giganteus, M. sinensis is widely distributed around East Asia providing well abiotic stress tolerance. To enrich the M. sinensis genomic databases and resources, we sequenced and annotated the transcriptome of M. sinensis by using an Illumina HiSeq 2000 platform. Approximately 316 million high-quality trimmed reads were generated from 349 million raw reads, and a total of 114,747 unigenes were obtained after de novo assembly. Furthermore, 95,897 (83.57%) unigenes were annotated to at least one database including NR, Swiss-Prot, KEGG, COG, GO, and NT, supporting that the sequences obtained were annotated properly. Differentially expressed gene analysis indicates that drought stress 15 days could be a critical period for M. sinensis response to drought stress. The high-throughput transcriptome sequencing of M. sinensis under drought stress has greatly enriched the current genomic available resources. The comparison of DEGs under different periods of drought stress identified a wealth of candidate genes involved in drought tolerance regulatory networks, which will facilitate further genetic improvement and molecular studies of the M. sinensis.
机译:芒草×巨人被广泛种植为世界上潜在的生物燃料原料;然而,狭窄的遗传基础和不育特性已成为其利用的限制。作为中华M的祖先,中华M广泛分布在东亚各地,具有良好的非生物胁迫耐受性。为了丰富中华绒螯蟹的基因组数据库和资源,我们使用Illumina HiSeq 2000平台对中华绒螯蟹的转录组进行了测序和注释。从3.49亿个原始读数中产生了约3.16亿个高质量的修整读数,并且从头组装后总共获得了114,747个单基因。此外,将95,897(83.57%)个单基因注释到至少一个数据库中,包括NR,Swiss-Prot,KEGG,COG,GO和NT,支持正确注释获得的序列。差异表达的基因分析表明,干旱胁迫15天可能是中华绒螯蟹响应干旱胁迫的关键时期。干旱胁迫下中华按蚊的高通量转录组测序大大丰富了目前的基因组可用资源。比较不同时期干旱胁迫下的DEGs,发现了许多参与耐旱调控网络的候选基因,这将有助于进一步提高中华绒螯蟹的遗传改良和分子研究。

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