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Collection and Conservation of Vigna nakashimae on Nakadorijima Island, Uku Island, and Nishisonogi Peninsula
Get PDFA research survey to collect and conserve Vigna germplasm — mainly Vigna nakashimae — was conducted on Nakadorijima Island, Ukujima Island, and Nishisonogi Peninsula, Nagasaki refecture, Japan, in October 17 ̵ 21, 2022. A total of 31 wild and weedy legume accessions were collected from 14 sites. On Nakadorijima Island, Vigna angularis (weedy), Vigna angularis var. nipponensis , Glycine soja, and Canavalia lineata were found at 4 of the 15 sites visited, but natural habitats for Vigna nakashimae were not found. On Ukujima Island, V. nakashimae was collected at 9 of the 10 sites visited; 6 of these sites were newly discovered native habitats. Only one site was visited in Nishisonogi Peninsula, where one accession of Vigna angularis (weedy) was collected. All of the collected seeds are being conserved and will undergo multiplication in the National Agriculture and Food Research Organization (NARO) Genebank. The propagated seeds will be used for research on tolerance to abiotic stresses, including salinity. These genetic resources will become available upon request for research or educational purposes.2022年10月18~20日に長崎県五島列島の中通島，宇久島および西海市にてヒメツルアズキを中心としたマメ科野生種の遺伝資源探索収集を行った．その結果，合計31品目の野生型および雑草型のマメ科遺伝資源を収集できた．中通島では15カ所のサイトを訪れた．そのうち4カ所で雑草アズキ（Vigna angularis），ヤブツルアズキ（V. angularis var. nipponensis），ツルマメ（Glycine soja）およびハマナタマメ（Canavalia lineata）を収集できたが，ヒメツルアズキ（V. nakashimae）の自生地の発見には至らなかった．宇久島では10カ所のサイトを調査し，その内9カ所でヒメツルアズキを収集できた．うち6カ所は新規に発見した自生地であった．西彼杵半島では1サイトのみ調査し，雑草アズキを１系統収集できた．収集したすべての系統をジーンバンクに遺伝資源として登録・保存した．増殖した種子は今後耐塩性機構に関する研究材料として使用する計画である．また研究材料や教育資料として一般に配布可能となる予定である．articl
