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Genome-wide identification of the SPL gene family in Dichanthelium oligosanthes


Sajid Hussain & Satyabrata Nanda*



State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, Zhejiang 311440, China;



Sajid Hussain - E-mail:; *Corresponding author


Article Type

Research Article



Received December 18, 2018; Revised January 12, 2019; Accepted January 12, 2019; Published March 15, 2019



SQUAMOSA promoter-binding protein-like (SPL) transcription factors play vital roles in various plant physiological processes. Although, the identification of the SPL gene family has been done in C4 grass plants, including rice and maize, the same has not been characterized in the C3 grass species Dichanthelium oligosanthes. In this study, 14 SPL genes were identified in the genome of D. oligosanthes. Gene structure analysis of the identified DoSPLs revealed the similarity and redundancy in their exon/intron organizations. Sequence comparisons within the DoSPLs and along with rice SPLs revealed the putative paralogs and orthologs in D. oligosanthes SPL genes. Phylogenetic analysis clustered the DoSPLs into eight groups along with other plant SPLs. Identification of the conserved SBP motifs in all 14 DoSPLs suggested them to be putative SPLs. In addition, the prediction of sub-cellular localization and associated functions for DoSPLs further supported to be SPL genes. The outcome of this study can serve as a framework for the isolation and functional validation of SPL genes in D. oligosanthes.



SPLs, transcription factors, phylogenetic analysis, Dichanthelium oligosanthes



Hussain & Nanda, Bioinformation 15(3): 165-171 (2019)


Edited by

P Kangueane






Biomedical Informatics



This is an Open Access article which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. This is distributed under the terms of the Creative Commons Attribution License.