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Chinese Agricultural Science Bulletin ›› 2023, Vol. 39 ›› Issue (28): 24-32.doi: 10.11924/j.issn.1000-6850.casb2022-0763

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Diversity Analysis of Fruit Colour in Pepper Germplasm Resources

SONG Zhao(), CHEN Xiao, CHANG Jingjing, LI Jing, CAO Jian, HE Yuzhi, ZHANG Baige()   

  1. Vegetable Research Institute/ Guangdong Key Lab for New Technology Research of Vegetables, Guangdong Academy of Agricultural Sciences, Guangzhou 510640
  • Received:2022-09-07 Revised:2023-04-17 Online:2023-10-05 Published:2023-09-25


The paper aims to explore the linkage relationship of colour of pepper organs. 18 botanical traits of 113 pepper cultivars were investigated and statistically analyzed. Correlation analysis showed that corolla colour, style colour and filament colour had high correlation, while ovary colour, young fruit colour, immature fruit colour and mature fruit colour had no significant correlation. Phylogenetic clustering analysis indicated that purple immature fruit colour was linked to fruit shape and filament colour, stem pubescence was linked to disease-resistance. In this study, we elucidated 18 botanical traits of 113 pepper germplasm, especially the correlation between immature fruit colour and mature fruit colour, which laid a solid foundation for the subsequent research on the genetic law of fruit colour and the gene mapping of fruit colour in pepper.

Key words: pepper, organ colour, fruit colour, cluster analysis, correlation analysis