摘要
采用传统分类学及细胞学、同工酶及RAPD分子标记对云南德宏地区逸生狼尾草进行分析和鉴定。结果表明,云南德宏地区逸生狼尾草体细胞染色体数为2n=28,逸生狼尾草与矮象草的遗传距离较近,而与王草的遗传距离较远,说明云南德宏地区逸生狼尾草在分类上属象草,而非当地多年称谓的"狼尾草"。
Naturalized Pennisetum sp. in Dehong was identified using traditional taxonomy and cytology, isozyme and RAPD. The results showed that chromosome number of somatic cell of naturalized Penniseturn sp. was 28. The results of isozyme and RAPD analysis showed that genetic distances between P. purpureum cv. Mott and naturalized Pennisetum sp. was closer, and the genetic distance between naturalized Pennisetum sp. and P. americanum × P. typhoideum was wider. It supported the conclusion that naturalized Pennisetum sp. belongs to P. purpureum in taxonomy.
出处
《中国草地学报》
CSCD
2008年第3期110-114,共5页
Chinese Journal of Grassland
基金
云南省自然科学基金项目(2004C0063M)
关键词
逸生狼尾草
象草
形态学
细胞学
RAPD同工酶
Naturalized Pennisetum sp.
Elephant grass
Morphology
RAPD
Cytology
Isozyme
