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鹅观草属模式种(Roegneria caucasica)的C带分析
引用本文:杨瑞武,周永红,郑有良. 鹅观草属模式种(Roegneria caucasica)的C带分析[J]. 四川农业大学学报, 2002, 20(2): 78-80,122
作者姓名:杨瑞武  周永红  郑有良
作者单位:1. 基础部,四川,雅安,625014
2. 小麦研究所,四川,都江堰,611830
基金项目:四川省教育厅研究项目,四川省科技厅研究项目资助
摘    要:利用改良的GiemsaC带技术 ,分析了鹅观草属模式种R .caucasica的染色体C带带型。R .caucasica的GiemsaC带核型是 :2n =4x =2 8=14m +14sm。不同染色体之间的C带带型在带的数量、大小、强弱及位置等方面存在明显差异 ,因此认为C带可作为R .caucasica染色体的细胞学标记。同时 ,对R .caucasica的St、Y染色体组C带带型与其它物种的St、Y染色体组C带带型的差异进行了讨论。

关 键 词:GiemsaC带  鹅观草属  模式种
文章编号:1000-2650(2002)02-0078-03
修稿时间:2001-10-17

Analysis on chromosome C-banding Roegneria caucasica
YANG Rui-wu ,ZHOU Yong-hong ,ZHENG You-liang. Analysis on chromosome C-banding Roegneria caucasica[J]. Journal of Sichuan Agricultural University, 2002, 20(2): 78-80,122
Authors:YANG Rui-wu   ZHOU Yong-hong   ZHENG You-liang
Affiliation:YANG Rui-wu 1,ZHOU Yong-hong 2,ZHENG You-liang 2
Abstract:The Giemsa C-banding analyses of Roegneria caucasica was carried out by using an improved C-banding procedure. The karyotype formulae is as follow: 2n=4x=28=14m+14sm. The C-banding patterns in number, size, dyeability and distribution among all chromosomes were distinctively different. So the C-banding pattern is a cytological marker of Roegneria caucasica. The C-banding diferences of St genome or Y genome in Roegneria caucasica between other species were discussed.
Keywords:GIEMSA C-BANDING  ROEGNERIA  TYPE SPECIES.
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