Integrated identification of naturalized pennisetum rich. sp. in Dehong, Yunnan Province
2008
hou Ziwei | Yuan Fujin | Kuang Chongyi
chinois. 采用传统分类学,细胞学和RAPD分子标记对云南德宏地区逸生狼尾草（Pennisefum Rich.sp.）进行分析和鉴定。结果表明：逸生狼尾草体细胞染色体数为2n=28,经同工酶及RAPD分析,逸生狼尾草与矮象草（P.pur-pureum Schum.cv.Mott）的遗传距离较近,而与王草（P.americanum×P.typhoideum）的遗传距离较远,说明逸生狼尾草在分类上属象草,而非当地多年称谓的“狼尾草”。[著者文摘]
Afficher plus [+] Moins [-]anglais. As the naturalized Pennisetum Rich. sp. , Dehong No. 1 is a native grass in Dehong, Yunnan Province,and has a long growth history of sixty years. For high yield forage, Dehong No. 1 has been used as sown pasture in recent years and has the potential value of extensive utilization. In this study, Dehong No. 1 was identified using the methods of traditional taxonomy, cytology, isozyme, and RAPD. The results show that chromosome number of body cell of Dehong No. 1 is 28. The isozyme and RAPD analysis show that the genetic distance between Mott Elephantgrass （P. purpureurn Schum. cv. Mott） and Dehong No. 1 is closer than that between Dehong No. 1 and Kinggrass （P. americanum × P. typhoides）. In summary, Dehong No. 1 is a kind of Elephantgrass in taxonomy other than Wolftailgrass.
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