A Cytological Study of the Sweet Potato Plant Ipomoea Batatas (L.) Lam. and its Related Species
A Cytological Study of the Sweet Potato Plant Ipomoea Batatas (L.) Lam. and its Related Species
复制标题
DOI：
10.1086/281978
复制
发表时间：
1957-05
期刊：
影响因子：
--
通讯作者：
Y. Ting;A. Kehr;J. Miller
中科院分区：
文献类型：
--
作者：
Y. Ting;A. Kehr;J. Miller
它是世界上最重要的粮食作物之一。尽管如此，这种作物及其相关物种的沿着细胞学路线的研究一直被忽视。甘薯属的许多物种的染色体数目尚未确定，很少有品种的商品甘薯进行了细胞学分析。Kano（1929）、Walcott（1937）、King and Bamford（1937）和Rao（1947）的上级先驱工作为甘薯改良的研究人员提供了许多有关染色体数目的有价值的信息，但还需要更多的信息。令人惊讶的是，甘薯自身的第一次减数分裂研究直到1953年才发表（Ting和凯尔，1953）。本研究的目的是检查甘薯植物的不同品种的减数分裂特征，并确定在Ipomoea属的其他物种的染色体数目。特别注意的是那些在分类学上与甘薯植物关系密切的物种。此外，为了阐明甘薯与该属其他物种的系统发育关系，还开展了种间杂交研究。
for subsistence, and it ranks as one of the most important world food crops. Despite this, research along cytological lines on this crop and its related species has been much neglected. Chromosome numbers of many species of the genus Ipomoea have not yet been determined, and few varieties of commercial sweet potatoes have been cytologically analyzed. The superior pioneer works of Kano (1929), Walcott (1937), King and Bamford (1937), and Rao (1947) have provided much valuable information concerning chromosome numbers to research staffs working on sweet potato improvement, but more is needed. It is astonishing that the first meiotic study of the sweet potato itself was not published until 1953 (Ting and Kehr, 1953). The present study was undertaken with the objective of examining the meiotic features in various varieties of the sweet potato plant, and determining the chromosome numbers of the other species in the genus Ipomoea. Particular attention was paid to those species which are taxonomically closely placed to the sweet potato plant. In addition, an interspecific hybridization program was initiated in order to clarify the phylogenetic relationship between the sweet potato plant and the other species in the genus.