| 线纹香茶菜狭基变种和线纹香茶菜细花变种的染色体核型分析 |
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| 引用本文： | 张翘,潘超美,黄向旭.线纹香茶菜狭基变种和线纹香茶菜细花变种的染色体核型分析[J].安徽农业科学,2012,40(10):5858-5859,5875. |
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| 作者姓名： | 张翘 潘超美 黄向旭 |
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| 作者单位： | 广东食品药品职业学院,广东广州,510520;广州中医药大学,广东广州,510006;中国科学院华南植物所,广东广州,510520 |
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| 摘 要： | 目的]对线纹香茶菜狭基变种Radbosia lophanthoides var.gerardianus(Benth.)Hara]和线纹香茶菜细花变种Radbosia lophan-thoides Hara var.graciliflorus(Benth.)Hara]的染色体进行核型分析。方法]分别对线纹香茶菜狭基变种和线纹香茶菜细花变种生长旺盛的茎尖进行染色,压片后对它们的染色体进行观察和分析。结果]线纹香茶菜狭基变种的核型公式为K(2n)=2x=24=18m+4Sm,属2A型。线纹香茶菜细花变种的核型公式为K(2n)=2x=24=16m+8Sm,属1B型。结论]线纹香茶菜细花变种比线纹香茶菜狭基变种更进比。
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| 关 键 词： | 线纹香茶菜狭基变种 线纹香茶菜细花变种 染色体 核型 |
Karyotype Analysis of Rabdosia lophanthoides var.gerardianus and Rabdosia lophanthoides Hara var.graciliflorus Chromosomes |
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| Institution: | ZHANG Qiao et al(Guangdong Food and Drug Vocational College,Guangzhou,Guangdong 510520) |
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| Abstract: | Objective] This study aimed to conduct the karyotype analysis of R.lophanthoides var.gerardianus and R.lophanthoides Hara var.graciliflorus chromosomes.Method] Vigorously growing shoot tips of R.lophanthoides var.gerardianus and R.lophanthoides Hara var.graciliflorus were stained for section preparation to observe and analyze the chromosomes.Result] Karyotype formula of R.lophanthoides var.gerardianus is K(2n)=2x=24=18m+4sm,suggesting that this species belongs to category 2A of Stebbins;karyotype formula of R.lophanthoides Hara var.graciliflorus is K(2n)=2x=24=16m+8sm,suggesting that this species belongs to category 1B of Stebbins.Conclusion] R.lophanthoides var.gerardianus is more primitive compared with R.lophanthoides Hara var.graciliflorus. |
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| Keywords: | R lophanthoides var gerardianus R lophanthoides Hara var graciliflorus Chromosome Karyotype |
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