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Screening and transcriptome analysis of water deficiency tolerant germplasms in peanut (Arachis hypogaea)

文献类型： 外文期刊

作者： Shen, Yi 1 ; Zhiguo, E. 3 ; Zhang, Xiaojun 4 ; Liu, Yonghui 1 ; Chen, Zhide 1 ;

作者机构： 1.Jiangsu Acad Agr Sci, Inst Ind Crops, Nanjing 210014, Jiangsu, Peoples R China

2.Jiangsu Acad Agr Sci, Prov Key Lab Agrobiol, Nanjing 210014, Jiangsu, Peoples R China

3.China Natl Rice Res Inst, Hangzhou 310006, Zhejiang, Peoples R China

4.Qingdao Agr Univ, Coll Agron & Plant Protect, Qingdao 266109, Peoples R China

关键词： Transcriptome sequencing;Water deficiency stress;Peanut;Arachis hypogaea

期刊名称：ACTA PHYSIOLOGIAE PLANTARUM （ 影响因子：2.354； 五年影响因子：2.711 ）

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收录情况： SCI

摘要： Drought is one of the main limiting factors for peanut yield worldwide. However, the underlying genetic and molecular mechanisms remain unclear. In this study, we identified several water deficiency tolerant peanut germplasms based on physiological properties in the seedling stage. One of the germplasms was further characterized by transcriptome sequencing of samples that had been untreated or treated with PEG 6000 at three different times. A total of 370,145 non-redundant transcripts and 141,289 unigenes were obtained, and differentially expressed transcripts were identified among samples. Based on functional annotation, transcripts involved in drought response pathways were selected for qPCR analysis. Similar patterns but different levels of gene expression were found between drought-tolerant and drought-sensitive germplasms. These findings provide useful insights into drought tolerance of peanut.

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