CAJ | 학술논문

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.
채용상규압편법화개량BSG법대3개거군백목향적염색체핵형급Giemsa C-대대형진행연구.결과표명:3개거군백목향적핵형균속2B류형,기중엄서거군백목향적핵형공식위2n=16=4m+8sm+4st;기타량개거군백목향적핵형공식위2n=16=6m+6sm+4st,거군간핵형변이불명현.백목향적C대대형위CIT형,구유착사립대、중간대、단대화전대.3개거군백목향C대적분포、수목화류형불완전일양,출현료대형적다태성.
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.