Lately, the innovation task watermelon and melon cultivation and physiology workforce of Zhengzhou Fruit Investigation Institute has designed new development in the metabolism regulation of sugar and natural acid in watermelon fruit. The improvements of sugar and organic and natural acid all through the fruit progress ended up analyzed and the vital gene networks controlling the metabolic process of sugar and organic and natural acid during the fruit advancement ended up recognized. These results presented a theoretical basis for watermelon excellent breeding, which experienced essential scientific significance for the enhancement of watermelon marketplace and the advancement of watermelon breeding degree in China. The similar investigate benefits had been published in the journals of Horticulture Analysis and Scientia Horticulturae.
The sensory top quality of watermelon fruit is determined by the information of sugar and natural and organic acid, which determines the flavor of watermelon for the duration of the progress and maturation of watermelon fruit. The sweet watermelon ‘203Z’ and sour watermelon ‘SrW’ of its isogenic line ended up used as resources, the genes and gene networks co-expressed with glycolic acid metabolic process have been searched through WGCNA evaluation of transcriptional and metabolite information. Three gene expression networks had been identified, such as 2443 genes that had been highly correlated with sugar and natural and organic acid metabolic process in watermelon fruits. 7 crucial genes concerned in sugar and organic and natural acid metabolic process of watermelon fruits ended up screened by importance and qRT-PCR evaluation. Among them, Cla97C01G000640, Cla97C05G087120 and Cla97C01G018840 have been sugar transporters. Cla97C03G064990 was a sucrose synthase. Cla97C07G128420, Cla97C03G068240 and Cla97C01G008870 had been very correlated with malic acid and citric acid, which ended up the transporters and regulators of malic acid and citric acid. These genes were verified in the natural population, and the benefits showed that the expressions of these 7 genes had been noticeably positively correlated with the contents of sugar and organic and natural acid in watermelon fruit.
These researches were funded by the Agricultural Science and Know-how Innovation Software (CAAS-ASTIP-2016-ZFRI-07), National Important R&D Program of China (2018YFD0100704), the China Agriculture Study Method (Vehicles-25-03) and the Countrywide Character Science Foundation of China (31672178 and 31471893).
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