| 15种榛子种质的染色体核型分析 |
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| 引用本文： | 郭媛媛,邢世岩,马颖敏,唐海霞,韩克杰.15种榛子种质的染色体核型分析[J].园艺学报,2009,36(1):27-32. |
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| 作者姓名： | 郭媛媛 邢世岩 马颖敏 唐海霞 韩克杰 |
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| 作者单位： | （山东农业大学林学院，山东泰安271018） |
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| 基金项目： | 山东省教委基金，山东农业大学博士科研基金 |
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| 摘 要： | 采用普通压片法，以榛子叶芽为试材对其15个种质资源的核型进行了研究，结果表明榛子各种质染色体均为二倍体；核型可分为三种类型：2n=2x=22=22m、2n=2x=22=20m+2sm和2n=2x=22=16m+6sm；没有发现随体；所有种质染色体绝对长度平均值为1.50 μm，属小染色体；除欧榛和7#为1A型， B-23为2B型外，其余种质皆为1B型。种质间核型具有很大的相似性。
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| 关 键 词： | 榛子 种质 染色体 二倍体 核型 |
| 收稿时间： | 2008-07-26 |
Analysis of Karyotype on Fifteen Hazelnut Germplasms |
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| GUO Yuan-yuan,XING Shi-yan,MA Ying-min,TANG Hai-xia,HAN Ke-jie.Analysis of Karyotype on Fifteen Hazelnut Germplasms[J].Acta Horticulturae Sinica,2009,36(1):27-32. |
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| Authors: | GUO Yuan-yuan XING Shi-yan MA Ying-min TANG Hai-xia HAN Ke-jie |
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| Institution: | (Forestry College,Shandong Agricultural University，Tai'an，Shandong 271018，China) |
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| Abstract: | The karyotype of fifteen hazelnut germplasms was studied by method of squash with the young leaves as test materials. The results showed that all the chromosomes were diploid; The karyotypes were divided into three types, i. e. 2 n = 2x = 22 = 22m type, 2n = 2x = 22 = 20m +2 sm type and 2n = 2x = 22 = 16m +6sm type. There was no satellites found in the morphological observation of chromosomes; The average of chromosome absolute length on fifteen hazelnut germplasms was 1.50 μm, so it was small in size; the karyotype of the fifteen hazelnut germplasms all belonged to 1B type except that of C. avellana L. and 7# which were 1A type and B-23 which was 2B type, respectively. There was great similarity of karyotype among the germplasms. |
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| Keywords: | Hazelnut germplasms Chromosome Diploid Karyotype |
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