Integrated Identification of Naturalized Pennisetum Rich.sp.In Dehong,Yunnan Province

doi:10.11733/j.issn.1007-0435.2008.05.005

›› 2008, Vol. 16 ›› Issue (5): 453-457.DOI: 10.11733/j.issn.1007-0435.2008.05.005

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Integrated Identification of Naturalized Pennisetum Rich.sp.In Dehong,Yunnan Province

ZHOU Zi-wei^1,2, YUAN Fu-jin², KUANG Chong-yi², BI Yu-fen¹

1. Yunnan Agricultural University, Kunming, Yunnan Province 650214, China;
2. Yunnan Beef Cattle & Pasture Research Center, Kunming, Yunnan Province 650212, China

Received:2007-11-02 Revised:2008-04-15 Online:2008-10-15 Published:2008-10-15

云南德宏地区逸生狼尾草属植物的分类学鉴定

周自玮^1,2, 袁福锦², 匡崇义², 毕玉芬¹

1. 云南农业大学, 昆明黑龙潭, 650201;
2. 云南省肉牛和牧草研究心, 昆明小哨, 650212

通讯作者: 毕玉芬,E-mail:biyufenynnd@sina.com
作者简介:周自玮(1966- ),男,云南腾冲人,副研究员,长期从事牧草资源、栽培技术研究,E-mail:zhouziweiyn@126.com
基金资助:
云南省自然基金项目(2004C0063M)资助

Abstract

Abstract: 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.purpureum 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.

Key words: Naturalized Pennisetum Rich.sp., Morphology, Cytology, RAPD

摘要： 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.purpureum 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"。

关键词: 逸生狼尾草, 形态学, 细胞学, RAPD

CLC Number:

Q949

ZHOU Zi-wei, YUAN Fu-jin, KUANG Chong-yi, BI Yu-fen. Integrated Identification of Naturalized Pennisetum Rich.sp.In Dehong,Yunnan Province[J]. , 2008, 16(5): 453-457.

周自玮, 袁福锦, 匡崇义, 毕玉芬. 云南德宏地区逸生狼尾草属植物的分类学鉴定[J]. , 2008, 16(5): 453-457.

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Integrated Identification of Naturalized Pennisetum Rich.sp.In Dehong,Yunnan Province

云南德宏地区逸生狼尾草属植物的分类学鉴定

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