Genome Analysis Revives a Forgotten Hybrid Crop Edo-dokoro in the Genus Dioscorea

Autor: Satoshi Natsume, Yu Sugihara, Aoi Kudoh, Kaori Oikawa, Motoki Shimizu, Yuko Ishikawa, Masahiro Nishihara, Akira Abe, Hideki Innan, Ryohei Terauchi
Rok vydání: 2022
Předmět:
Zdroj: Plant and Cell Physiology. 63:1667-1678
ISSN: 1471-9053
0032-0781
Popis: A rhizomatous Dioscorea crop “Edo-dokoro” was described in old records of Japan, but its botanical identify has not been characterized. We found that Edo-dokoro is still produced by four farmers in Tohoku-machi of Aomori Prefecture, Japan. Rhizomes of Edo-dokoro are a delicacy to the local people and are sold in the markets. Morphological characters of Edo-dokoro suggest its hybrid origin between the two species, D. tokoro and D. tenuipes. Genome analysis revealed that Edo-dokoro is likely originated by hybridization of a male D. tokoro to a female D. tenuipes, followed by a backcross with a male plant of D. tokoro. Edo-dokoro is a typical minor crop possibly maintained for more than 300 years but now almost forgotten from the public. We hypothesize that there are many such uncharacterized genetic heritages passed over generations by small scale farmers that await serious scientific investigation for future use and improvement by using modern genomics information.
忘れられた作物「えどどころ」の起原 --ゲノム解析が明らかにする青森県三八上北地域に残る栽培イモの歴史--. 京都大学プレスリリース. 2022-08-10.
Databáze: OpenAIRE
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