| 摘要: |
| 采用常规压片法和改良BSG法对3个居群白木香的染色体核型及Giemsa C-带带型进行研究。结果表明:3个居群白木香的核型均属2B类型,其中广西居群白木香的核型公式为2n=16=4m+8sm+4st; 其他两个居群白木香的核型公式为2n=16=6m+6sm+4st,居群间核型变异不明显。白木香的C带带型为CIT型,具有着丝粒带、中间带、端带和全带。3个居群白木香C带的分布、数目和类型不完全一样,出现了带型的多态性。 |
| 关键词: 白木香 核型 Giemsa C带 |
| DOI： |
| 分类号:Q343.22 |
| Fund project: |
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| Author for correspondenceChromosomal studies on populations of Aquilaria sinensis |
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SHEN Yan-Jing1, JIAO Xu-Wen1, ZHAO Shu-Jin1,2*
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1.College of Bioscience and Engineering, South China University of Technology, Guangzhou 510640, China;2.Department
of Medicament, General Hospital of Guangzhou Military Command, Guangzhou 510010, China
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| Abstract: |
| For the first time,a conventional analysis of chromosome karyotype and Giemsa C-banding was carried out in three populations of Aquilaria sinensis. Three populations showed same chromosome number of 2n=2x=16 and the asymmetry of the karyotype was categorized as type 2B. The variance of karyotype was not obvious in three populations,only karyotypical formula(2n=16=4m+8sm+4st)in one population was different from the other two(2n=16=6m+6sm+4st). The Giemsa C-banding pattern of A.sinensis was CIT pattern. Within Giemsa C-banding pattern of A.sinensis there were centromeric bands,intercalary bands,telomeric bands and whole bands. The distributed position,numbers and types of the C-banding on the chromosome of A.sinensis had shown the clear polymorphisms. |
| Key words: Aquilaria sinensis karyotype Giemsa C-banding |
