Transcriptome and Metabolome Analysis Revealed the Flavonoid Biosynthesis of Pyrus hopeiensis Flowers Under Cold Stress
Published:05 Dec.2022    Source:Horticultural Plant Journal

Pear is an important fruit tree species in China. Low temperature is among the most restrictive factors to limit the yield and distribution of pear. In recent years, the frequent occurrence of extreme weather has caused huge economic losses to the pear industry, seriously affecting the growth, production and distribution of pears. Therefore, the study on the cold resistance mechanism of pear flowers under low temperature stress is of great significance for the selection of pear varieties with cold resistance and the improvement of pear yield.

 
Recently, Horticultural Plant Journal published online a research paper entitled "Integrative transcriptomic and metabolomic analyses reveal the flavonoid biosynthesis of Pyrus hopeiensis flowers under cold stress" by the team of Yang Minsheng from Forestry College of Hebei Agricultural University.
 
Pyrus hopeiensis is a valuable wild resource. In the study, the mRNA and metabolome sequencing of P. hopeiensis flower organs exposed to different low temperatures were performed to identify changes of genes and metabolites in response to low-temperature stress. This study clarified that P. hopeiensis has strong cold resistance, and analyzed the molecular mechanism of cold resistance of flower organs of P. hopeiensis from the transcriptome and metabolome levels, providing a reference for further exploring the biosynthesis of flavonoids and developing molecular breeding of cold resistant pear varieties.
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