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      The transcriptomic changes of Huipizhi Heidou (Glycine max), a nematode-resistant black soybean during Heterodera glycines race 3 infection.

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          Abstract

          Glycine max (soybean) is an extremely important crop, representing a major source of oil and protein for human beings. Heterodera glycines (soybean cyst nematode, SCN) infection severely reduces soybean production; therefore, protecting soybean from SCN has become an issue for breeders. Black soybean has exhibited a different grade of resistance to SCN. However, the underlying mechanism of Huipizhi Heidou resistance against SCN remains elusive. The Huipizhi Heidou (ZDD2315) and race 3 of Heterodera glycines were chosen to study the mechanism of resistance via examination of transcriptomic changes. After 5, 10, and 15days of SCN infection, whole roots were sampled for RNA extraction, and uninfected samples were simultaneously collected as a control. 740, 1413, and 4925 genes were isolated by padj (p-value adjusted)<0.05 after 5, 10, and 15days of the infection, respectively, and 225 differentially expressed genes were overlapped at all the time points. We found that the differentially expressed genes (DEGs) at 5, 10, and 15days after infection were involved in various biological function categories; in particular, induced genes were enriched in defense response, hormone mediated signaling process, and response to stress. To verify the pathways observed in the GO and KEGG enrichment results, effects of hormonal signaling in cyst-nematode infection were further examined via treatment with IAA (indo-3-acetic acid), salicylic acid (SA), gibberellic acid (GA), jasmonic acid (JA), and ethephon, a precursor of ethylene. The results indicate that five hormones led to a significant reduction of J2 number in the roots of Huipizhi Heidou and Liaodou15, representing SCN-resistant and susceptible lines, respectively. Taken together, our analyses are aimed at understanding the resistance mechanism of Huipizhi Heidou against the SCN race 3 via the dissection of transcriptomic changes upon J2 infection. The data presented here will help further research on the basis of soybean and cyst-nematode interaction.

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          Author and article information

          Journal
          J. Plant Physiol.
          Journal of plant physiology
          Elsevier BV
          1618-1328
          0176-1617
          Jan 2018
          : 220
          Affiliations
          [1 ] College of Plant Protection, Shenyang Agricultural University, 110866,Shenyang, China. Electronic address: shuangli@syau.edu.cn.
          [2 ] College of Plant Protection, Shenyang Agricultural University, 110866,Shenyang, China.
          [3 ] College of Biology science and technology, Shenyang Agricultural University, 110866, Shenyang, China.
          [4 ] Graduate School of Biotechnology & Crop Biotech Institute, Kyung Hee University, Yongin 17104, Republic of Korea.
          [5 ] College of Plant Protection, Shenyang Agricultural University, 110866,Shenyang, China. Electronic address: xuanyuanhu007@hotmail.com.
          [6 ] College of Plant Protection, Shenyang Agricultural University, 110866,Shenyang, China. Electronic address: duanyx6407@163.com.
          Article
          S0176-1617(17)30276-6
          10.1016/j.jplph.2017.11.001
          29169106
          2e1edb0c-bd22-49d8-b017-1d94cae13b88
          History

          Huipizhi Heidou,RNA-seq,Soybean cyst nematode,Gene enrichment,Hormone

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