详细信息
文献类型:期刊文献
中文题名:5种桤木属植物的核型分析
英文题名:Karyotyping of Five Species of Alnus in East Aisa Region
作者:杨汉波[1,2] 饶龙兵[2] 郭洪英[3] 段红平[1] 陈益泰[2]
第一作者:杨汉波
机构:[1]云南农业大学农学与生物技术学院;[2]中国林业科学研究院亚热带林业研究所;[3]四川省林业科学研究院
年份:2013
卷号:14
期号:6
起止页码:1203-1207
中文期刊名:植物遗传资源学报
外文期刊名:Journal of Plant Genetic Resources
收录:CSTPCD;;北大核心:【北大核心2011】;CSCD:【CSCD2013_2014】;
基金:"十二五"国家科技支撑项目(2012BAD01B0604);中央级公益性科研院所基本科研业务费专项资金(RISF2013010)
语种:中文
中文关键词:桤木属;染色体;核型分析
外文关键词:Alnus ; chromosome ; karyotyping
分类号:Q942
摘要:利用改良去壁低渗法对桦木科(Betulaceae)桤木属(Alnus Mill.)分布于东亚地区的5个种进行染色体数目与核型分析。结果表明:所试验物种的染色体形态比较一致,多是由中部(m)及近中部(sm)着丝点染色体组成。其中A.nitida染色体数为2n=28,核型公式为K(2n)=28=22m+4sm(2SAT)+2st(2SAT);A.hirsuta染色体数为2n=42,核型公式为K(2n)=42=36m+6sm;A.cremastogyne,A.formosana染色体数均为2n=56,核型公式分别为K(2n)=56=2M+40m(1SAT)+14sm(1SAT)和K(2n)=56=46m+8sm+2st;A.firma染色体数为2n=112,核型公式为K(2n)=112=80m+28sm+4st。
The chromosome number and karyotype of five species in east aisa region of Alnus was studied by shedding cell wall and dialysis methods. The results showed that the karyotypes among them were not distinct and most chromosomes were metacentric or submetacentric. The chromosome number of A. nitida was 28, the karyotype formula was K(2n) =28 =22m +4sm(2SAT) +2st(2SAT) ,2n =42 and K(2n) =42 =36m +6sm for A. hirsuta, 2n =56 and K(2n) = 56 = 2M + 40m(1SAT) + 14sm(1SAT) for A. cremastogyne,2n = 56 and K(2n) = 56 =46m + 8sm +2st for A.formosana,and 2n = 112 and K(2n) = 112 =80m +28sm +4st for A.firma.
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