Genome-Wide Analysis of the Nramp Gene Family in Kenaf (Hibiscus cannabinus): Identification, Expression Analysis, and Response to Cadmium Stress
文献类型： 外文期刊
作者： Liu, Qin 1 ; Li, Shaocui 2 ; Du, Guanghui 1 ; An, Xia 2 ;
作者机构： 1.Yunnan Univ, Sch Agr, Kunming 650500, Peoples R China
2.Zhejiang Acad Agr Sci, Zhejiang Xiaoshan Inst Cotton & Bast Fiber Crops, Zhejiang Inst Landscape Plants & Flowers, Hangzhou 311251, Peoples R China
关键词： Hibiscus cannabinus; Nramp gene family; cadmium; phylogenetic analysis
期刊名称：PLANTS-BASEL （ 影响因子：4.1； 五年影响因子：4.5 ）
ISSN： 2223-7747
年卷期： 2024 年 13 卷 17 期
页码：
收录情况： SCI
摘要： Kenaf (Hibiscus cannabinu) is a grass bast fiber crop that has the ability to tolerate and accumulate heavy metals, and it has been considered as a potential heavy metal accumulator and remediation plant. Nramp is a natural resistance-related macrophage, which plays an important role in the transport of divalent metal ions, plant growth and development, and abiotic stress. In this study, the Nramp gene family of kenaf was analyzed at the whole genome level. A total of 15 HcNramp genes were identified. They are distributed unevenly on chromosomes. Phylogenetic analysis classified 15 HcNramp proteins into 3 different subfamilies. All proteins share specific motif 4 and motif 6, and the genes belonging to the same subfamily are similar in structure and motif. The promoters are rich in hormone response, meristem expression, and environmental stress response elements. Under different treatments, the expression levels of HcNramp genes vary in different tissues, and most of them are expressed in roots first. These findings can provide a basis for understanding the potential role of the Nramp gene family in kenaf in response to cadmium (Cd) stress, and are of great significance for screening related Cd tolerance genes in kenaf.
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