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Acta Horticulturae Sinica ›› 2021, Vol. 48 ›› Issue (11): 2121-2132.doi: 10.16420/j.issn.0513-353x.2020-0847

• Original article •     Next Articles

An Analysis of Alternative Splicing Events During Browning Inhibition of Fresh-cut Apples by Hydrogen Sulfide Treatment

CHEN Chen, LIU Chenghui, SHI Lijia, JIANG Aili(), HU Wenzhong()   

  1. Key Laboratory of Biotechnology and Bioresources Utilization,Ministry of Education,College of Life Science,Dalian Minzu University,Dalian,Liaoning 116600,China
  • Received:2021-06-11 Revised:2021-08-06 Published:2021-12-02
  • Contact: JIANG Aili,HU Wenzhong E-mail:jal@dlnu.edu.cn;hwz@dlnu.edu.cn

Abstract:

In order to explore the alternative splicing of the browning inhibition of fresh-cut apples by hydrogen sulfide(H2S)treatment,RNA-Seq technology was used to identify the alternative splicing occurring in H2S-treated and H2O-treated fresh-cut apples at two storage time(0 and 6 d). The results showed that the dominate alternative splicing types were alternative transcription start site(TSS)and alternative transcription termination site(TTS)in these four samples. The number of the specific alternative splicing genes of H2S-treated fresh-cut apples at 0 and 6 d were 921 and 2 423,respectively. GO annotation showed that the specific alternative splicing genes in H2S-treated fresh-cut apples at 0 and 6 d were mainly enriched in flavonoid biosynthetic process,cytoplasm,membrane,hydrolase and oxidoreductase. KEGG analysis showed that these genes mainly enriched in plant-pathogen interaction,plant hormone signal transduction,carbohydrate metabolism,phenylpropanoid biosynthesis and oxidative phosphorylation. Furthermore,expression of polyphenol oxidase(PPO),peroxidase(POD),lipoxidase (LOX)and phospholipase D(LPD)genes was down-regulated after H2S treatment,whilst expression of phenylalanine ammonia-lyase(PAL)and NADH dehydrogenase was induced. In conclusion,H2S controlled the browning of fresh-cut apples through changing the alternative splicing and expression pattern of peroxide,phenylpropanoid metabolism,membrane and energy metabolism related genes.

Key words: apple, fresh-cut, browning, hydrogen sulfide, alternative splicing

CLC Number: