| 海滨车前和毛车前的核型研究 |
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| 引用本文： | 张华宣,刘均容,程斐.海滨车前和毛车前的核型研究[J].绵阳师范学院学报,1997(Z2). |
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| 作者姓名： | 张华宣 刘均容 程斐 |
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| 作者单位： | 绵阳师范高等专科学校 绵阳621000(张华宣,刘均容),南京农业大学 南京210000(程斐) |
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| 摘 要： | 文章对我国2种车前属Plantago植物的核型进行了分析.2个种的染色体数目均为2n=2x=12.它们的核型是:海滨车前P.camtschatica Link,Enum.2n=2x=12=8m+4sm;毛车前P.jehohlensis Koidz.2n=2x=12=6m+4sm+2st.它们的核型均属“2A”型.染色体相对长度组成P.camtschatica Link,enam.2n=2L+4M_2+4M_2+2S_1,P.jehoensis koidz.2n=6M_2+6M_1.由12条染色体组成.
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| 关 键 词： | 车前属 核型 海滨车前 毛车前 |
A STUDY ON KARYOTYPES OF TWO SPECIES OF PLANTAGO |
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| Zhang,Huaxuan.A STUDY ON KARYOTYPES OF TWO SPECIES OF PLANTAGO[J].Journal of Mianyang Normal University,1997(Z2). |
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| Authors: | Zhang Huaxuan |
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| Abstract: | The present paper gives the karyotype of 2 species of plantago in China for the first time. The number of their somatic chromosomes in root ?tip cells are alltetraploid with 2n = 2x = 12. Their karyotype formulae are as follows: P. camtschatica link, Enum. 2n = 2x=12 = 8m + 4sm; P. Jehohlensis koidz. 2n=2x= 12 = 6m + 4sm + 2st. The karyotypes belong to "2A" type. composed of relative length of chromosomes:P. camtschatica link,Enum. 2n=2L+4M2 + 4M1 +2S1,P. jehohlensis koidz. 2n = 6M2 + 6M1 The total length of chromosomes are 30.6 and 29.8 respectively. Both are composed of 12 pairs of chromosomes. |
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| Keywords: | Plantago Karyotype P camtschaticalink Enum P jehohlensis koidz |
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