关键词: 芸芥, 类型, 形态特征, RAPD, 和田芸芥

Abstract:

Twenty classic landraces of Yunjie(Eruca sativa Mill.) from 9 Provinces and regions of China were selected based on the morphological characteristics. The Yunjie genetic resources can be divided into two types, i.e. entire leaf Yunjie and pinnatinnately parted leaf Yunjie. Hetian Yunjie is belonged to the former and the others to the latter. A dendrogram based on ten morphological characteristics showed that Hetian Yunjie was distinguished from other Yunjie in this study. Hetian Yunjie has hair-free stem, radical and stem with entire leaves with stipes and which are 9.0 cm long and 0.5 cm wide. Its netted venation on petals is green and its hair-free which is quardrangular in sections while the Chinese Yunjie has pinnately parted leaf with purple-brown netted venation and cylindrical-like fruits. Clusting based on RAPD analysis also showed the correspondence with the result based on the inophological characters. On the other hand, there were a cross-compatibility between Hetian Yunjie and other Yunjie and the nearly same mature period among the tested Yunjie accessions. It was reveal that Hetian is the new type of Chinese Yunjie and its systematic level should be studied in future, possibly, it is the new type of variety or subspecies of E. sativa.

Key words: Eruca sativa Mill., RAPD, Morphological character, Types