Karyotyping of Brassica napus L. Based on C0t-1 DNA Banding by Fluorescence In Situ Hybridization  

作　　者：Wen-Hui WEI Wan-Peng ZHAO Li-Jun WANG Bo CHEN Yun-Chang LI Yun-Chun SONG 

机构地区：[1]Institute of Oil Crops, Chinese Academy of Agricultural Sciences, Wuhan 430062, China [2]College of Life Sciences, Xinyang Normal University, Xinyang 464000, China [3]Key Laboratory of Ministry of Education for Plant Developmental Biology, College of Life Sciences, Wuhan University, Wuhan 430072, China

出　　处：《Journal of Integrative Plant Biology》2005年第12期1479-1484,共6页植物学报（英文版）

摘　　要：In order to precisely recognize and karyotype Brassica napus L. chromosomes, C0t-1 DNA was extracted from its genomic DNA, labeled with biotin-1 1-dUTP and in situ hybridized. The hybridized locations were detected by Cy3-conjugated streptavidin. Specific fluorescence in situ hybridization （FISH） signal bands were detected on all individual chromosome pairs. Each chromosome pair showed specific banding patterns. The B. napus karyotype has been constructed, for the first time, on the basis of both Cot-1 DNA FISH banding patterns and chromosome morphology.In order to precisely recognize and karyotype Brassica napus L. chromosomes, C0t-1 DNA was extracted from its genomic DNA, labeled with biotin-1 1-dUTP and in situ hybridized. The hybridized locations were detected by Cy3-conjugated streptavidin. Specific fluorescence in situ hybridization （FISH） signal bands were detected on all individual chromosome pairs. Each chromosome pair showed specific banding patterns. The B. napus karyotype has been constructed, for the first time, on the basis of both Cot-1 DNA FISH banding patterns and chromosome morphology.

关 键 词：Brassica napus C0t-1 DNA chromosome banding fluorescence in situ hybridization（FISH） karyotyping. 

分 类 号：Q949[生物学—植物学]