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Position: Home > Articles > Analysis on chromosome C-banding Roegneria caucasica Journal of Sichuan Agricultural University 2002,20 (2) 6-8+50

鹅观草属模式种(Roegneria caucasica)的C带分析

作  者:
杨瑞武;周永红;郑有良
单  位:
四川农业大学基础部;四川农业大学小麦研究所
关键词:
GiemsaC带;鹅观草属;模式种
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。
译  名:
Analysis on chromosome C-banding Roegneria caucasica
作  者:
YANG Rui-wu 1, ZHOU Yong-hong 2, ZHENG You-liang 2 (1.Department of Basic Sciences, Sichuan Agricultural University, Yaan 625014, Sichuan, China; 2.Triticeae Research Institute, Sichuan Agricultural University, Dujiangyan 611830, Sichuan, China)
关键词:
GIEMSA C-BANDING; ROEGNERIA; TYPE SPECIES.
摘  要:
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.

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