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Transcriptome Analysis Reveals the Genes Related to Water-Melon Fruit Expansion under Low-Light Stress

文献类型： 外文期刊

作者： Gao, Wenrui 1 ; She, Fuchun 1 ; Sun, Yanjun 1 ; Han, Bing 1 ; Wang, Xiansheng 4 ; Xu, Gang 1 ;

作者机构： 1.Jiangsu Prov Acad Agr Sci, Inst Vegetable Crop, Nanjing 210014, Peoples R China

2.Jiangsu Key Lab Hort Crop Genet Improvement, Nanjing 210014, Peoples R China

3.Anhui Agr Univ, Sch Hort, Hefei 230036, Peoples R China

4.Jiangsu Acad Agr Sci, Inst Germplasm Resources & Biotechnol, Nanjing 210014, Peoples R China

5.Nanjing Stn DUS Testing Ctr New Varieties Plants M, Nanjing 210014, Peoples R China

关键词： watermelon; low-light stress; fruit expansion; RNA-seq; differentially expressed genes; transcription factors

期刊名称：PLANTS-BASEL （ 影响因子：4.5； 五年影响因子：4.8 ）

ISSN：

年卷期： 2023 年 12 卷 4 期

页码：

收录情况： SCI

摘要： Watermelon is one of people's favorite fruits globally. Fruit size is one of the important characteristics of fruit quality. Low light can seriously affect fruit development, but there have been no reports concerning molecular mechanism analysis in watermelons involved in fruit expansion under low-light stress. To understand this mechanism, the comparative transcriptomic file of watermelon fruit flesh at four different developmental stages under different light levels was studied. The results showed that the fruit size and content of soluble sugar and amino acids at low-light stress significantly decreased compared to the control. In addition, 0-15 DAP was the rapid expansion period of watermelon fruit affected by shading. In total, 8837 differentially expressed genes (DEGs) were identified and 55 DEGs were found to play a role in the four different early fruit development stages. We also found that genes related to oxidation-reduction, secondary metabolites, carbohydrate and amino acid metabolism and transcriptional regulation played a key role in watermelon fruit expansion under low-light stress. This study provides a foundation to investigate the functions of low-light stress-responsive genes and the molecular mechanism of the effects of low-light stress on watermelon fruit expansion.

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