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Acta Horticulturae Sinica ›› 2023, Vol. 50 ›› Issue (3): 620-634.doi: 10.16420/j.issn.0513-353x.2021-1189

• Research Papers • Previous Articles     Next Articles

WGCNA Analysis of Differentially Expressed Genes in Floral Organs of Tea Germplasms with Ovary-glabrous and Ovary-trichome

WANG Zehan1, YU Wentao2,*(), WANG Pengjie1, LIU Caiguo1, FAN Xiaojing1, GU Mengya1, CAI Chunping2, WANG Pan1, YE Naixing1,*()   

  1. 1College of Horticulture,Fujian Agriculture and Forestry University,Fuzhou 350002,China
    2Fujian Key Laboratory for Technology Research of Inspection and Quarantine,Technology Centre of Fuzhou Customs District P.R. China,Fuzhou 350001,China

Abstract:

In order to explore the molecular differences between the floral organs of two different types of tea germplasms,transcriptome sequencing analysis was performed on ovary-glabrous tea germplasms and ovary-trichome tea germplasm at their bud period and open period. The results showed that the differentially expressed genes between ovary-glabrous tea germplasms and ovary-trichome tea germplasm were 2 086-4 733. These differentially expressed genes involve in plant pathogen interaction, flavonoid biosynthesis and glutathione metabolism. Eighteen modules were identified by WGCNA. And three modules with the highest correlation with tea floral organ were screened out. By calculating the connectivity of genes in the module,the core genes in the network are excavated and annotated. The results showed that there were differences in resistance and synthesis of secondary metabolites between ovary-glabrous and ovary-trichome tea germplasms. The ovary-glabrous germplasm without trichome is susceptible to pathogen invasion and stress of adversity. It can improve its ability to cope with stress by regulating GST. The CsLTP may be a key gene regulating the trichome development of tea flower ovary.

Key words: Camellia sinensis, ovary-glabrous, ovary, ovarian-trichome, WGCNA, transcriptome

CLC Number: