Acta Agriculturae Zhejiangensis ›› 2023, Vol. 35 ›› Issue (2): 249-258.DOI: 10.3969/j.issn.1004-1524.2023.02.01

• Crop Science •     Next Articles

Genome-wide identification and analysis of NCS1 gene family in upland cotton

JI Meijun(), CAO Ziyi, WANG Yiting, LU Jingru, WANG Baohua()   

  1. School of Life Sciences, Nantong University, Nantong 226019,Jiangsu, China
  • Received:2021-07-20 Online:2023-02-25 Published:2023-03-14
  • Contact: WANG Baohua

Abstract:

The nucleobase-cation-symport-1 (NCS1) family is a family of secondary active transport proteins comprising over 2 500 sequenced members from bacteria, archaea, fungi and plants. In other studies, it has been found that these proteins are related to solute-specific transport, which in turn affects the growth and development of plants. The objective of this study is to reveal the role of nucleobase cation transporter in cotton growth and development. We identified NCS1 gene family members at the genome-wide level in upland cotton. Chromosome mapping, physical and chemical characterization, phylogenetic tree construction, gene structure analysis, and identification of promoter cis-acting elements were performed to systematically analyze members of the gene family. At the genome-wide level, we identified 4 upland cotton NCS1 genes. The chromosome mapping results showed that these genes are distributed on A09 and D09 two chromosomes. All NCS1 proteins have NCS1 domains according to the motif results. Gene structure analysis showed that the structure and length of introns and exons are consistent in the subgroups. Phylogenetic analysis among cotton, Arabidopsis, rice, maize and other species showed that the gene family had obvious differentiation during the evolution of species. Promoter sequence analysis showed that there are a large number of cis-acting elements related to abscisic acid and gibberellin responses in this gene family. qRT-PCR validation experiments were carried out on cotton fibers of 17 and 21 days post anthesis (dpa), and the results showed that NCS1 gene family members have a significant regulatory role in fiber development. This is the first study that the whole genome of NCS1 family has been identified and analyzed in upland cotton, which provides a theoretical basis for further exploration of nucleobase cation transporters on cotton growth and development.

Key words: upland cotton, bioinformatics, NCS1, gene family

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