检索结果-南通市图书馆

阜阳师范学院学报（自然科学版） 1992年第2期9卷 28-29页

作者：郭新弧安徽师范大学生物系芜湖241000

报春花属 Primu1a L.植物全世界共产500余种,我国种类最为丰富,有293种,21亚种,18变种,约占世界总数的60%。主要分布集中在喜马拉雅山至云南、四川西部一带,这一地区是本属植物的现代分布中心。本属植物大多花期较早,通常早春就可开花,... 详细信息

报春花属 Primu1a L.植物全世界共产500余种,我国种类最为丰富,有293种,21亚种,18变种,约占世界总数的60%。主要分布集中在喜马拉雅山至云南、四川西部一带,这一地区是本属植物的现代分布中心。本属植物大多花期较早,通常早春就可开花,中名报春花和学名 Primula 就具有这种含义。属植物不仅种类繁多,许多种类花色艳丽,是重要的园庭观赏植物。本世纪初,欧、美许多国家多次派人来我国采集,将种苗运回本国栽培。

关键词：报春花属 Primula L 分布中心安徽羽叶报春研究史报春属四川西部园艺品种钟观光模式标本

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

High Genetic Diversity in a Rare, Narrowly Endemic Primrose Species： Primula interjacens by ISSR Analysis

引用

Acta Botanica Sinica 2004年第10期46卷 1163-1169页

作者： XUEDa-Wei GEXue-Jun HAOGang ZHANGChang-Qin KunmingInstituteofBotany TheChineseAcademyofSciencesKunming650204China SouthChinaBotanicalGarden TheChineseAcademyofSciencesGuangzhou510650China

Prirnula interjacens Chen (Primulaceae) is a rare and narrow endemic species of centralsouth of Yunnan Province in China. This species consists of two varieties: *** var. interjacens known with only one population, and *** var. epilosa with two populations. Intersimple sequence repeat (ISSR) marker was used to detect the genetic diversity of the three extant populations. We expected a low genetic diversity level, but our results revealed a high level of intraspecific genetic diversity (at population level: P=59.75%, HE=0.2368, and Hpop=0.3459; at species level: P=75.47%, HT= 0.320 5, and Hsp = 0.4618), probably resulting from floral heteromorphism and preferring outcrossing. A moderate level of genetic differentiation among populations was detected based on Nei's genetic diversity analysis (26.13%) and Shannon's diversity index (25.09%). Although P./ntedacens var. intedacens and P. interjacens var. epilosa were morphologically distinct, UPGMA cluster analysis showed that the two varieties had no distinct genetic differentiation and may be treated as a single taxon. Conservation measures are suggested, including in situ and ex situ strategies, based on the observed population genetic information.

关键词：报春花报春属稀有品种云南中国报春花科植物

来源：

维普期刊数据库评论