Research Article

Genome-wide Identification and Bioinformatics Analysis of NRL Gene Family in Rice  

Yangyang Hu , Linlin Sun , Duoxiang Wang , Dabing Zhang , Wenguo Cai
School of Life Sciences and Biotechnology, Shanghai Jiaotong University, Shanghai, 200240, China
Author    Correspondence author
Molecular Plant Breeding, 2022, Vol. 13, No. 18   doi: 10.5376/mpb.2022.13.0018
Received: 18 May, 2022    Accepted: 29 May, 2022    Published: 15 Jun., 2022
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This article was first published in Molecular Plant Breeding in Chinese, and here was authorized to translate and publish the paper in English under the terms of Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Preferred citation for this article:

Hu Y.Y., Sun L.L., Wang D.X., Zhang D.B., and Cai W.G., 2022, Genome-wide identification and bioinformatics analysis of NRL gene family in rice, Molecular Plant Breeding, 13(18): 1-11 (doi: 10.5376/mpb.2022.13.0018)


NRL (NPH3/RPT2-Like) gene family is plant-specific and it is named after its two members in Arabidopsis, NPH3 (NONPHOTOTROPIC HYPOCOTYL 3) and RPT2 (ROOT PHOTOTROPISM 2), which are involved in phototropism. In this study, we identified 27 rice NRL genes distributed on 12 chromosomes except chromosome 10 with bioinformatic analysis. Gene duplication analysis revealed that whole genome duplication (WGD)/segmental duplication played a more vital role than tandem duplication in rice NRL gene family expansions. A total of 192 NRL gene family members from seven species were identified and subsequently they were divided into six groups in phylogenetic relationship analysis. Structural feature analysis showed that most members of rice NRL gene family contained specific domains of NRL family. Furthermore, based on RNA-Seq data and microarray data, expression analysis showed that rice NRL family genes were expressed in several tissues and some genes displayed higher expression in leaves, inflorescence and anther. Identification and analysis were conducted in NRL gene family from rice and these results provided some reference-able message for further functional research.

Rice; NRL; Gene family; Bioinformatics
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