| 四福花染色体核型的分析 |
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| 引用本文： | 梁汉兴.四福花染色体核型的分析[J].云南植物研究,1986(2). |
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| 作者姓名： | 梁汉兴 |
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| 作者单位： | 中国科学院昆明植物研究所 |
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| 摘 要： | 四福花Tetradoxa ometensis (Hara)C.Y.Wu]体细胞具有36个染色体。其核型组成为2n=36=6m+14sm+4st+12t,即具有3对中部着丝点染色体,7对亚中部着丝点染色体,2对亚端部着丝点染色体和6对端部着丝点染色体。 四福花染色体核型分析表明,与传统对五福花科植物染色体具9基数的认识不同,其基数应为X=18。与Noguchi所发现的具18基数的三倍体五福花的核型相比较,二者在核型组成及染色体结构上都有明显差异。
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| 关 键 词： | 五福花科 四福花 核型 核型模式图 |
KARYOTYPE ANALYSIS OF TETRADOXA OMEIENSIS (ADOXACEAE) |
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| Liang Hanxing.KARYOTYPE ANALYSIS OF TETRADOXA OMEIENSIS (ADOXACEAE)[J].Acta Botanica Yunnanica,1986(2). |
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| Authors: | Liang Hanxing |
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| Abstract: | Karyotype analysis for the species Tetradoxa omeiensis (Hara) C. Y. Wu of the monotypic genus Tetradoxa C. Y. Wu is reported for the first time. The number of the chromosomes in the root-tip cell was found to be 36. Of the 2n=36 somatic chromosomes, six chromosomes (the 1,2, 3th pairs) arc metacentric, fourteen chromosomes (the 4 , 5, 6,7,8,9, 10th pairs) have submedian constriction, four chromosomes(the 11,12th pairs) are acrocentric, and the remaining twelve chromosomes ( the 13th to 18th pairs) are typical telocentric.
The karyotype of this plant may be expressed as follows : 2n= 36= 6m + 14sm + 4st + 12t |
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| Keywords: | Adoxaceac Tetradoxa omeiensis Karyotype Idiogram |
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