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ID 53966
フルテキストURL
タイトル(別表記)
分子遺伝学的手法を用いたわが国メロン品種の多様性と分類
著者
Dung, Tran Phuong 岡山大学環境生命科学研究科
田中 克典 弘前大学人文学部
明石 由香利 岡山大学環境生命科学研究科
Thuy, Duong Thanh 岡山大学環境生命科学研究科
西田 英隆 岡山大学環境生命科学研究科
加藤 鎌司 岡山大学環境生命科学研究科
抄録
For the breeding of Japanese netted melon, various types of foreign cultivars have been utilized for improving adaptability, disease and pest resistance, fruit quality and so on. However, little is known about their genetic diversity and relationships, since most cultivars derived from crosses between various horticultural groups. To figure out the genetic structure of Japanese melon, in this study, 57 melon accessions from three horticultural groups were examined using 55 RAPD markers produced by 24 RAPD primers. Genetic diversity of the Japanese netted melon was as high as those of cultivar groups of Groups Cantalupensis and Inodorus, while it was low in Group Conomon irrespective of large variations in fruit traits. Cluster analysis and PCO analysis based on genetic distance showed that Group Conomon was distantly related to other melon accessions. Among the latter, European cantaloupe (nonnetted) and American open-field type (netted) proved to be genetically close, while England glasshouse melon (netted) including ‘Earl’s Favourite’ is distantly related to these two groups and closely related with Group Inodorus. It was therefore suggested that England glasshouse type was established from hybrids between European cantaloupe and Group Inodorus. Japanese netted melon was most closely related with England glasshouse type, irrespective of the fact that various kinds of melon accessions have been crossed to improve adaptability, disease resistance and so on. In contrast, pure line cultivars of the Japanese netted melon bred by pure line selection from ‘Earl's Favourite’ or by crossing ‘Earl’s Favourite’ with ‘British Queen’ were confirmed to be mostly homogenous, and it was difficult to establish RAPD markers to discriminate each cultivar. Group Conomon var. makuwa and var. conomon, which have been cultivated and utilized as different crops, proved to be genetically indistinguishable and were considered to share the same gene pool.
キーワード
breeding
classification
genetic diversity
melon
RAPD
備考
原著論文 (Original paper)
発行日
2016-02-01
出版物タイトル
岡山大学農学部学術報告
出版物タイトル(別表記)
Scientific Reports of the Faculty of Agriculture Okayama University
105巻
出版者
岡山大学農学部
出版者(別表記)
Faculty of Agriculture, Okayama University
開始ページ
7
終了ページ
15
ISSN
2186-7755
資料タイプ
紀要論文
言語
English
論文のバージョン
publisher
査読
無し
Eprints Journal Name
srfa