摘要
为评价不同来源同名甘蓝型油菜品种的异同性,以42个同名甘蓝型油菜品种(共91份)为研究对象,采用同名品种两两相邻种植方法,分成56组,调查参试品种的29个DUS[特异性(distinctness)、一致性(uniformity)和稳定性(stability)]测试性状,并采用43个SSR标记,对参试品种进行指纹分析,进而比较同名甘蓝型油菜品种基于DUS测试性状和SSR标记的异同性。结果表明,39.3%(22组)的不同来源同名品种无论是表型还是SSR标记都存在较大差异;26.8%(15组)的同名品种间表型和SSR指纹极为相似,亲缘系数表明,该类品种亲缘关系密切;只有33.9%(19组)的同名品种综合表现为无明显差异。由此可知,不同来源的甘蓝型油菜品种中,同名异种现象比较普遍,建议相关主管部门加强对同名品种的管理。
To assess the distinctness of homonymous Brassica napus L.varieties from different resources,91 materials of 42 varieties were employed in this study.29 characteristics used in DUS(distinctness,uniformity,stability) testing were examined by field trial in which homonymous varieties were grown side by side.At the same time,43 SSR markers developed by our previous research were applied for fingerprint analysis.We evaluated the distinctness of homonymous varieties by characteristics used in DUS testing and SSR markers.Results showed that in total 56 pairs,39.3 percent(22 pairs) of homonymous varieties were greatly distinct from each other not only on morphological traits but also on SSR markers.26.8 percent(15 pairs) of tested homonymous varieties were extremely similar and Kinship coefficient analysis revealed that these varieties have a very close relationship.The percentage of accession without significance difference was only 33.9(19 pairs).These results suggested that it is a common phenomenon that homonymous varieties from different resources are actually homonyms.Therefore,it is suggested for department of varieties collection management to supervise homonymous varieties closely.
出处
《中国油料作物学报》
CAS
CSCD
北大核心
2013年第4期364-371,383,共9页
Chinese Journal of Oil Crop Sciences
基金
公益性行业(农业)科技专项(200903008)
作者简介
赖运平（1982-），男，江西赣州人，硕士，主要从事甘蓝型油菜DUS测试工作，
迎汛作行：余毅（1970-），女，副研究员，主要从事植物新品种保护工作，
