Intra-Specific Ploidy Variations in Cultivated Chinese Yam (Dioscorea polystachya Turcz.)
スポンサーリンク
概要
- 論文の詳細を見る
Chinese yam (Dioscorea polystachya Turcz.) is an edible tuber crop cultivated mainly in temperate regions of Japan and China. Chinese yam cultivars in Japan are classified into the following three groups: Nagaimo, Tsukuneimo, and Ichoimo, which produce cylindrical, round, and flattened tubers, respectively. In the present study, the chromosome numbers of cultivated Chinese yams from Japan were estimated. The chromosomes of the cultivar 'Kagamaruimo' were observed, and the chromosome number was estimated to be 2n = approximately 100. Flow cytometry using 'Kagamaruimo' as an internal reference standard revealed that the number of chromosomes in the 11 cultivars belonging to the Nagaimo group was 2n = approximately 140, while in the remaining 10 cultivars classified in the Tsukuneimo or Ichoimo group, the chromosome number was 2n = approximately 100. Based on data from shape analysis of leaves, Chinese yam cultivars could be divided mainly into two groups: a group that includes cultivars of Nagaimo and a group that includes cultivars of Tsukuneimo and Ichoimo. A high correlation was also found between stomatal traits and chromosome number. Based on the length, width, and size of the stoma, chinese yam cultivars were divided into two groups: cultivars with the chromosome number 2n = 100 and those with 2n = 140. Based on the results obtained in the present study, chinese yam cultivars can be divided into two genetic groups: a group containing cultivars of Nagaimo and a group containing cultivars of 'Tsukuneimo' and 'Ichoimo'.
- 日本熱帯農業学会の論文
日本熱帯農業学会 | 論文
- 貯蔵中のランブータン果実の細胞壁代謝に及ぼす低温障害の影響
- 海南島での永年作物への被陰樹
- 台湾におけるカイラン在来品種群のアイソザイム多型性
- 近赤外分光分析法によるサトウキビ品質評価
- 41. マンゴーの花芽分化に及ぼす2、3の処理の影響について