Tree Genetics and Molecular Breeding 2025, Vol.15, No.1, 18-24 http://genbreedpublisher.com/index.php/tgmb 22 Figure 2 Summary of metabolome and transcriptome data sets (Adopted from Shu et al., 2023) Image caption: (a) Phenotypic changes in kiwifruits (Actinidia chinensis cv Hongyang) at 11 different fruit developmental and ripening stages (FDRSs). Intact and sectioned kiwifruits were photographed at 10, 25, 40, 55, 70, 85, 100, 115, 130, 145, and 170 d postanthesis (DPA). Bar, 1 cm. (b, c) Cluster analysis for metabolomes (b) and transcriptomes (c). The color scales 0–1 represent Pearson correlation coefficient. (d, e) Principal component analysis for metabolomes (d) and transcriptomes (e). Kiwifruits at the 11 FDRSs can be categorized into three major Groups I, II, and III based on purple, green, or yellow phenotypes in pericarps (a), metabolomes (b, d), and transcriptomes (c, e) (Adopted from Shu et al., 2023) 7 Conclusion and Future Directions The genetic diversity of the genus Actinidia is rich, providing a strong foundation for variety improvement. Advanced technologies such as genomics and transcriptomics enable researchers to gain a deeper understanding of the genetic mechanisms of kiwifruit, making breeding more targeted. Methods such as MAS and GS have also achieved remarkable results in improving the target traits. Interspecific hybridization and cis-genetic engineering and other methods have brought new possibilities for the breeding of superior varieties. Future research should focus on protecting and making good use of the existing genetic resources. Establishing a core germplasm resource bank can better preserve and manage diverse resources. Continuing to promote and optimize technical means such as genomic selection is helpful for making breeding work more efficient. In the face of climate change and the constantly changing demands of the market, breeding goals should give priority to new varieties with strong disease resistance and high environmental adaptability. The combination of traditional breeding methods and modern genomic tools has led kiwifruit production onto a sustainable development path. Only by breeding more new varieties with good taste, attractive color, rich nutrition and strong stress resistance in the future can the kiwifruit industry continue to grow and develop, and maintain its competitiveness and influence in the global market. Acknowledgments The author sincerely thanks Dr. Chen for carefully reviewing the manuscript of this study and providing detailed revision suggestions. The author also extends deep gratitude to the two anonymous peer reviewers for their valuable comments and suggestions on the manuscript of this study. Conflict of Interest Disclosure The author affirms that this research was conducted without any commercial or financial relationships that could be construed as a potential conflict of interest.
RkJQdWJsaXNoZXIy MjQ4ODYzNA==