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Yaichi Kawakatsu, Tomoaki Sakamoto, Hokuto Nakayama, Kaori Kaminoyama, Kaori Igarashi, Masaki Yasugi, Hiroshi Kudoh, Atsushi J. Nagano, Kentaro Yano, Nakao Kubo, Michitaka Notaguchi & Seisuke Kimura. Combination of genetic analysis and ancient literature survey reveals the divergence of traditional Brassica rapa varieties from Kyoto, Japan. Horticulture Research volume 8, Article number: 132 (2021)
Link to the paper