| 草莓属植物染色体观察及种间杂交研究初报 |
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| 引用本文： | 葛会波,雷有军.草莓属植物染色体观察及种间杂交研究初报[J].河北农业大学学报,1997,20(3):56-60. |
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| 作者姓名： | 葛会波 雷有军 |
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| 作者单位： | [1]河北农业大学园艺系 [2]沈阳农业大学园艺系 |
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| 摘 要： | 通过对从国内外所收集到的部分野生草莓的染色体数目的观察得知，野生草莓中二倍体类型居多，占１２份，八倍体类型３份。在国内首次发现了五倍体类型结合植物学性状观察确定，６份属于森林草莓；２份属于黄毛草莓；１份属于五叶草莓，２份属于弗州草莓；１份属于智利草莓；２份为种间杂种，还有３份的分类地位尚需进一步研究确定，利用五倍体草病莓杂交，得到了育性较高的六倍体植株。
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| 关 键 词： | 野生草莓 草莓 染色体 种间杂交 |
A Preliminary Report on Chromosome Number and Interspecific Hybridization in Fragaria |
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| Ge Huibo, Lei Jiajun, Guo Zhenhuan.A Preliminary Report on Chromosome Number and Interspecific Hybridization in Fragaria[J].Journal of Agricultural University of Hebei,1997,20(3):56-60. |
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| Authors: | Ge Huibo Lei Jiajun Guo Zhenhuan |
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| Abstract: | The chromosme numbers of 17 samples of wild strawberries were observed in thestudy. The results showed that 12 of them were diploids, 3 were octoploids and 2 were pen-taploids which were firstly reported in China. According to their chromosome numbers andbotanical characters 6 samples were indentified to be F. vesca, 2 nilgerresis, 1 F. virgini-ana, 1 F. chilonesis and 2 interspecific hybrids. Still there were 3 samples unidentified- Inhybridization between pentaploidy strawberry and octoploidy cultivated strawberry a sextu-p1oidy seedling was obtained. The pentaploidy and sextuploidy strawberries were promisingto be used as a new breeding bridge in transferring excellent genes from wild strawberries tocultivate strawberries in further interspecific hybridization. |
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| Keywords: | Wild strawberry Chromosome number Interspecific hybridization |
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