GENOME-WIDE ANALYSIS AND EXPRESSION PROFILING OF POTASSIUM TRANSPORT RELATED GENES IN Solanum tuberosum
文献类型： 外文期刊
作者： Azeem, Farrukh 1 ; Hussain, Mudassar 1 ; Hussain, Sabir 3 ; Zubair, Muhammad 1 ; Nadeem, Habibullah 1 ; Ali, Muhamm 1 ;
作者机构： 1.Govt Coll Univ, Dept Bioinformat & Biotechnol, Faisalabad, Pakistan
2.Chinese Acad Trop Agr Sci CATAS, Haikou Expt Stn, Hainan Key Lab Banana Genet Improvement, Haikou 570102, Hainan, Peoples R China
3.Govt Coll Univ, Dept Environm Sci & Engn, Faisalabad, Pakistan
4.Univ Agr Faisalabad, Dept Plant Pathol, Faisalabad, Pakistan
关键词： Potassium; S. tuberosum; Channel; Transporter; Ion homeostasis
期刊名称：PAKISTAN JOURNAL OF AGRICULTURAL SCIENCES （ 影响因子：0.748； 五年影响因子：0.854 ）
ISSN： 0552-9034
年卷期： 2021 年 58 卷 1 期
页码：
收录情况： SCI
摘要： Potassium (K+) is one of the vital macronutrients for the plant kingdom. It constitutes almost 10% of total plant biomass. Therefore, it is evident that K+ takes part in diverse biological processes throughout plant life. A number of molecular and functional studies have demonstrated the existence of a very organized system for K+ uptake and transport in model plants. However, very scanty information is available related to the potassium transport system in Solanum tuberosum. Current study involves genome wide identification, in silico characterization and expression analysis of K+ transport related genes in S. tuberosum. In this study, we identified 43 genes encoding transporters and channels involved in potassium transport. These genes were categorized on the basis of their conserved motifs and domain structure. There are twenty three potassium transorters (1 HKT, 4 KEAs and 18 KUP/HAK/KTs) and twenty channels (5 KCOs/TPKs and 15 Shakers). Chromosomal positioning of these genes showed that these genes are randomly spread over all the 12 chromosomes of S. tuberosum. The phylogenetic analysis showed that K+ transporters and channels in S. tuberosum are orthologous to genes that are in charge of K+ transport in Arabidopsis thaliana and Solanum lycopersicum. To validate the in silico data, we performed expression analysis of these genes under salinity stress. Some genes were differentially expressed in response to salt stress, which indicates the significance of these genes for stress response of S. tuberosum. Current study is the first insight into the potassium transport system in S. tuberosum and it will work as a baseline for functional analysis of these genes.
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