scholarly journals Evolutionary Analyses Reveal Diverged Patterns of SQUAMOSA Promoter Binding Protein-Like (SPL) Gene Family in Oryza Genus

2019 ◽  
Vol 10 ◽  
Author(s):  
Hua Zhong ◽  
Weilong Kong ◽  
Ziyun Gong ◽  
Xinyi Fang ◽  
Xiaoxiao Deng ◽  
...  
Plants ◽  
2020 ◽  
Vol 9 (3) ◽  
pp. 354
Author(s):  
Shaokun Li ◽  
Li Li ◽  
Yang Jiang ◽  
Jun Wu ◽  
Honghua Sun ◽  
...  

SPL (SQUAMOSA promoter binding protein-like) gene family is specific transcription factor in the plant that have an important function for plant growth and development. Although the SPL gene family has been widely studied and reported in many various plant species from gymnosperm to angiosperm, there are no systematic studies and reports about the SPL gene family in Panax ginseng C. A. Meyer. In this study, we conducted transcriptome-wide identification, evolutionary analysis, structure analysis, and expression characteristics analysis of SPL gene family in Panax ginseng by bioinformatics. We annotated the PgSPL gene family and found that they might involve in multiple functions including encoding structural proteins, but the main function were still focused on the binding function. The result showed that 106 PgSPL transcripts were classified into two clades - A and B, both of which respectively consisted of three groups. Besides, we profiled PgSPL transcripts’ genotypic, temporal, and spatial expression characteristics. Furthermore, we calculated the correlation of PgSPL transcripts in the 14 tissues of a 4 years old ginseng and 42 farmers’ cultivars farmers’ cultivars of 4 years old ginsengs’ roots with both results showing that SPL transcripts formed a single network, which indicated that PgSPLs inter-coordinated when performing their functions. What’s more, we found that most PgSPL transcripts tended to express in older ginseng instead of younger ginseng, which was not only reflected in the expression of more types of SPL transcripts in older ginseng, but also in the higher expression of SPL transcripts in older ginseng. Additionally, we found that four PgSPL transcripts were only massively expressed in roots. According to PgSPL transcripts’ expression characteristics, we found that PgSPL23-35 and PgSPL24-09 were most proper two transcripts to further study as ginseng age’s molecular marker. These results provide the basis for further elucidation of the PgSPL transcripts’ biological function in ginseng and ginseng genetics improvement and gene breeding in the future.


2015 ◽  
Vol 290 (5) ◽  
pp. 1701-1715 ◽  
Author(s):  
Zongda Xu ◽  
Lidan Sun ◽  
Yuzhen Zhou ◽  
Weiru Yang ◽  
Tangren Cheng ◽  
...  

Botany ◽  
2020 ◽  
Author(s):  
Fuye Guo ◽  
Qiuwei Lu ◽  
Jing Cang

The SQUAMOSA promoter-binding protein-like (SPL) proteins constitute a family of plant-specific transcription factors that play a vital role in plant development. Wheat (Triticum aestivum, AABBDD) is universally well-known as a cash crop; however, the SPLs of this important crop have not been systematically investigated as yet. In the current study, we conducted a genome-wide survey in wheat and found 56 SPL genes belonging to 19 homologous groups. SPLs were divided into 7 classes by phylogenetic tree analyses. We mapped these genes on to the wheat chromosomes and examined their structures and conserved motifs. Moreover, we performed a synteny analysis on wheat, and summarized the SPL family as well as the evolutionary relationships between SPLs. Thereafter, we compared the expression patterns of wheat SPLs under different conditions, thereby confirming that SPLs play an important role in spike development. To conclude, the SPLs in triplets have analogous structures and similar expression patterns. The three-pair triplet response to jasmonic acid (JA) and abscisic acid (ABA) was determined by quantitative real-time polymerase chain reaction (RT-qPCR). This work provides a comprehensive understanding of the SPL gene family in wheat. Our investigation of the wheat SPL gene family provides a starting point for additional functional studies of these significant transcription factors in wheat.


Biomolecules ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 66 ◽  
Author(s):  
Ren-Fang Zeng ◽  
Jing-Jing Zhou ◽  
Sheng-Rui Liu ◽  
Zhi-Meng Gan ◽  
Jin-Zhi Zhang ◽  
...  

SQUAMOSA-promoter binding protein (SBP)-box genes encode a family of plant-specific transcription factors that play vital roles in plant growth and development. In this study, 15 SBP-box genes were identified and isolated from Citrus clementina (CclSBPs), where 10 of these genes were predicted to be putative targets of Citrus clementina microRNA156 (CclmiR156). The 15 CclSBP genes could be classified into six groups based on phylogenetic analysis, diverse intron–exon structure, and motif prediction, similar to the SQUAMOSA promoter binding protein-like (SPL) gene family of Populus trichocarpa and Arabidopsis thaliana. Furthermore, CclSBPs classified into a group/subgroup have similar gene structures and conserved motifs, implying their functional redundancy. Tissue-specific expression analysis of CclSBPs demonstrated their diversified expression patterns. To further explore the potential role of CclSBPs during floral inductive water deficits, the dynamic changes of the 15 CclSBPs were investigated during floral inductive water deficits, and the results showed that some CclSBPs were associated with floral induction. Among these genes, CclSBP6 was not homologous to the Arabidopsis SBP-box gene family, and CclSBP7 was regulated by being alternatively spliced. Therefore, CclSBP6 and CclSBP7 were genetically transformed in Arabidopsis. Overexpression of the two genes changed the flowering time of Arabidopsis.


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