Few people realize that vegetables like cabbages, mustard, and rapeseed—commonly found on the tables of everyday people—belong to the genus *Brassica* in botanical classification. For a long time, scientists have been puzzled by the question of who the "ancestor" of these crops is. Recently, a breakthrough has been made by a research team led by Dr. Wang Xiaowu from the Chinese Academy of Agricultural Sciences. With years of experience studying *Polygonum* species and having previously led the sequencing of the Chinese cabbage genome, the team has now made significant progress in understanding the evolutionary history of *Brassica* genomes.
Their findings were recently published in the prestigious journal *Plant Cell*. The study represents the first time researchers have identified the common ancestral genome of seven chromosomes shared among *Brassica* species and their related plants. This discovery has helped clarify key stages in the evolution of the *Brassica* genome. Using this information, the team reconstructed the three sub-genomes of Chinese cabbage and precisely defined seven recombination blocks in the cruciferous model genome. These achievements have finally resolved long-standing questions about the chromosomal evolution of important crops such as cabbage, turnip, rapeseed, and radish.
Industry experts believe that identifying the common ancestors of *Brassica* species not only deepens our understanding of the evolutionary processes of these crops but also has far-reaching implications for gene function studies and future breeding programs. This research opens new doors for improving crop resilience, yield, and quality through advanced genomic analysis.
With this groundbreaking work, scientists are now better equipped to explore how these plants adapted over time and how we can harness their genetic potential for sustainable agriculture. As more data becomes available, the field of plant genomics continues to evolve, offering exciting possibilities for both science and food security worldwide.
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