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| 三种紫金牛属植物的核型研究 |
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张美云1, 廖 亮1, 李同建1, 易官美2, 刘中来1, 徐玲玲1*, 张大明1
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1.江西九江学院 生命科学学院, 江西 九江 332000;2.江西省、中国科学院庐山植物园, 江西 庐山 332900
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| 摘要: |
| 对紫金牛属三种植物进行了核型分析,其中朱砂根染色体数目2n=46、核型2n=46=42m+2sm+2st和紫金牛核型2n=92=58m+24sm+10st为首次报道; 虎舌红核型公式为2n=44=40m+2sm+2st。核型分析结果显示,紫金牛属植物存在染色体数目非整倍体变异及多倍化的进化方式。 |
| 关键词: 染色体数目 核型 朱砂根 虎舌红 紫金牛 |
| DOI： |
| 分类号:Q942 |
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| Karyotypes of three species in Ardisia |
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LI Yun-Xiang1, WANG Jun2
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1.College of Life Science, Jiujiang University, Jiujiang 332000, China;2.Lushan
Botanical Garden, Chinese Academy of Sciences, Lushan 332900, China )
Abstract: Karyological stuidies were carried out in three species of Ardisia from China. The chromosome numbers 2n=46,karyotype 2n=46=42m+2sm+2st of A.crenata and the karyotype 2n=92=58m+24sm+10st of A.japonica were reported here for the first time. The karyotype formula of A.mamillata were 2n=44=40m+2sm+2st. The karyotype analysis showed that there were aneuploid variation of chromosome number and polyploidization evolution in Ardisia.
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| Abstract: |
| Karyological stuidies were carried out in three species of Ardisia from China. The chromosome numbers 2n=46,karyotype 2n=46=42m+2sm+2st of A.crenata and the karyotype 2n=92=58m+24sm+10st of A.japonica were reported here for the first time. The karyotype formula of A.mamillata were 2n=44=40m+2sm+2st. The karyotype analysis showed that there were aneuploid variation of chromosome number and polyploidization evolution in Ardisia. |
| Key words: chromosome numbers karyotype Ardisia crenata Ardisia mamillata Ardisia japonica |
