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Comprehensive analysis of NAC transcription factors and their expressions during taproot coloration in radish (Raphanus sativus L.)

文献类型： 外文期刊

作者： Huang, Yan 1 ; Cui, Lei 1 ; Chen, Weifang 1 ; Liu, Zhixiong 1 ; Yuan, Weiling 1 ; Zhu, Fengjuan 1 ; Jiao, Zhenbiao 1 ; Zhang, Zhenxing 1 ; Deng, Xiaohui 1 ; Wang, Liping 1 ; Qiu, Zhengming 1 ; Yan, Chenghuan 1 ;

作者机构： 1.Hubei Acad Agr Sci, Inst Econ Crops, Hubei Key Lab Vegetable Germplasm Enhancement & Ge, Wuhan 430064, Peoples R China

2.Huazhong Agr Univ, Coll Hort & Forestry Sci, Key Lab Hort Plant Biol, Minist Educ, Wuhan 430070, Peoples R China

3.Hubei Acad Agr Sci, SouthLake, Wuhan 430064, Hubei, Peoples R China

关键词： Raphanus sativus; NAC family; phylogenetic analysis; RNA-seq; taproot coloration

期刊名称：SCIENTIA HORTICULTURAE （ 影响因子：4.342； 五年影响因子：4.342 ）

ISSN： 0304-4238

年卷期： 2022 年 299 卷

页码：

收录情况： SCI

摘要： Taproot color is a key trait for assessing their commercial value of radish cultivars. Although the plant-specific NAC (NAM, ATAF, and CUC) transcription factors (TFs) have demonstrated roles in several plant development processes, their functions in radish taproot coloration remain largely unknown. In this study, 183 NAC members were identified from the long-read genome 'QZ-16' of radish. Phylogenetic analysis indicated that the NAC members in radish, rice and Arabidopsis were clustered into 18 groups. Synteny analysis revealed that a total of 30 segmental duplication and 5 tandem duplication events occurred in RsNAC genes. Transmission electron microscopy observation showed that the lack of chloroplast led to taproot color change from green to totally white in radish. Furthermore, when comparing green radish 'QZ-16' and white radish '55', ten RsNAC differentially expressed genes (DEGs) were identified by RNA-seq, which were found to be related to taproot coloration in radish. These findings would lay a solid foundation for the investigation of the relationship between taproot coloration and RsNAC gene functions in radish.

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