| 八个四倍体鹅观草属物种的核型研究 |
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| 引用本文： | 康厚扬,周永红,张海琴,邓小锋,曹刚,.八个四倍体鹅观草属物种的核型研究[J].广西植物,2006,26(4):360-365. |
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| 作者姓名： | 康厚扬 周永红 张海琴 邓小锋 曹刚 |
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| 作者单位： | 四川农业大学,小麦研究所,四川,都江堰,611830 |
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| 基金项目： | 国家自然科学基金(30270099,30470135)，四川省教育厅重点项目资助~~ |
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| 摘 要： | 对8个鹅观草属物种的核型进行了研究。核型公式如下:纤穗鹅观草2n=4x=28=20m+8sm(2sat);紫穗鹅观草2n=4x=28=22m(2sat)+6sm;假花鳞草2n=4x=28=24m(2sat)+4sm;肃草2n=4x=28=22m+6sm(2sat);小颖鹅观草2n=4x=28=22m+6sm(2sat);纤瘦鹅观草2n=4x=28=24m(4sat)+4sm;变颖鹅观草2n=4x=28=20m+8sm(2sat);毛花鹅观草2n=4x=28=24m(2sat)+4sm。它们的核型属1A或2A型。其中后5个物种的核型为首次报道。
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| 关 键 词： | 鹅观草属 核型 四倍体 |
| 文章编号： | 1000-3142(2006)04-0360-06 |
| 收稿时间： | 2005-01-17 |
| 修稿时间： | 2005-07-20 |
Karyotypes of eight tetraploid species in Roegneria(Poaceae:Triticeae) |
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| KANG Hou-yang,ZHOU Yong-hong,ZHANG Hai-qin,DENG Xiao-feng,CAO Gang.Karyotypes of eight tetraploid species in Roegneria(Poaceae:Triticeae)[J].Guihaia,2006,26(4):360-365. |
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| Authors: | KANG Hou-yang ZHOU Yong-hong ZHANG Hai-qin DENG Xiao-feng CAO Gang |
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| Institution: | Triticeae Research Institute, Sichuan Agricultural University,Dujiangyan 611830, China |
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| Abstract: | Karyotypes of eight species in Roegneria were investigated. The karyotype formulas were as follows:R.tenuispica J.L.Yang et Y.H.Zhou,2n=4x= 28=20m 8sm(2sat);R.purpurascens Keng,2n=4x=28=22m(2sat) 6sm;R.anthosachnoides Keng,2n=4x=28=24m(2sat) 4sm;R.stricta Keng,2n=4x=28=22m 6sm(2sat);R.parvigluma Keng,2n=4x=28=22m 6sm(2sat);R.gracilis L.B.Cai,2n=4x=28=24m(4sat) 4sm;R.dura(Keng)Keng var.variiglumis Keng,2n=4x=28=20m 8sm(2sat);R.multiculmis Kitagawa var.pubiflora Keng ,2n=4x=28=24m(2sat) 4sm. The karyotypes belong to 1A or 2A types. The karyotypes of the last 5 species are reported for the first time. |
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| Keywords: | Roegneria karyotype tetraploid |
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