| 8种野生百合染色体数目的变异 |
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| 引用本文： | 荣立苹,雷家军,毕晓颖,高玉福.8种野生百合染色体数目的变异[J].东北林业大学学报,2009,37(9). |
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| 作者姓名： | 荣立苹 雷家军 毕晓颖 高玉福 |
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| 作者单位： | 1. 沈阳农业大学,沈阳,110161
2. 延边大学 |
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| 摘 要： | 利用染色体根尖压片法对原产我国的卷丹(Lilium lancifolium Thunb.)、毛百合(L. dauricum Ker-Gawl.)、朝鲜百合(L. amabile Palib.)、兰州百合(L. davidii Duch var. unicolor Salisb.)、大花卷丹(L. leichtlinii Hook .f. var. maximowiczii Baker)、有斑百合(L. concolor Salisb. var. buschianum (Lodd.) Baker)、细叶百合(L. pumilum DC.)、垂花百合(L. cernuum Komar.)8种(变种)野生百合的染色体数目进行了观察研究.结果表明,除卷丹是三倍体(2n=3x=36)外,其他种均为二倍体(2n=2x=24).8种百合属植物的根尖细胞均不同程度地发生了染色体数目变异,二倍体种均出现了染色体数目的非整倍性变异,有少于或多于正常体染色体数的22、25、26条染色体,其所占比例为2%～10%;观察到三倍体卷丹存在非整倍性变异和整倍性变异,出现了少于或多于正常体染色体数的34、37条染色体,其所占比例约为9%,而出现单倍体细胞(2n=x=12)的频率约为2%.三倍体卷丹中出现单倍体细胞为首次报道.在毛百合、兰州百合、有斑百合、细叶百合、卷丹5种百合的体细胞中观察到B染色体.
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| 关 键 词： | 百合属 染色体数目 变异 B染色体 |
Chromosomal Numerical Variations in Eight Species of Genus Lilium |
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| Rong Liping,Lei Jiajun,Bi Xiaoying,Gao Yufu.Chromosomal Numerical Variations in Eight Species of Genus Lilium[J].Journal of Northeast Forestry University,2009,37(9). |
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| Authors: | Rong Liping Lei Jiajun Bi Xiaoying Gao Yufu |
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| Institution: | Rong Liping,Lei Jiajun,Bi Xiaoying(College of Horticulture,Shenyang Agricultural University,Shenyang 110161,P.R.China),Gao Yufu(Yanbian University) |
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| Abstract: | An experiment was conducted to observe the chromosome number of eight species of the genus Lilium,including Lilium lancifolium Thunb.,L.dauricum Ker-Gawl.,L.amabile Palib.,L.davidii Duch var.unicolor Salisb.,L.leichtlinii Hook.f.var.maximowiczii Baker,L.concolor Salisb.var.buschianum(Lodd.)Baker,L.pumilum DC.,and L.cernuum Komar.,using root tip squash technique.Results showed that L.lancifolium was triploid(2n=3x=36)and the other species were diploid(2n=2x=24).The variations in chromosomal number were obser... |
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| Keywords: | Lilium Chromosome numbers Variations B-chromosome |
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