| 拟鹅观草属3种植物的核型研究 |
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| 引用本文： | 于海清,丁春邦,周永红.拟鹅观草属3种植物的核型研究[J].西北植物学报,2009,29(8). |
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| 作者姓名： | 于海清 丁春邦 周永红 |
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| 作者单位： | 1. 四川农业大学,小麦研究所,四川都江堰,611830;泸州医学院医学分子生物学实验室,四川泸州,646000
2. 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(30670150 |
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| 摘 要： | 对禾本科小麦族拟鹅观草属物种Pseudoroegneria geniculata、P.geniculata ssp.scythica和P.geniculata ssp.pruinifera的核型进行了研究.结果显示:P.geniculata和P.geniculata ssp.scythica为四倍体物种,P.geniculata ssp.pruinifera为六倍体物种;P.geniculata、P.geniculata ssp.scythica和P.geniculata ssp.pruinifera的核型公式分别为2n=4x=28=18m(2sat)+10sm(2sat)、2n=4x=28=28m(2sat)和2n=6x=42=36m(6sat)+6sm(2sat);P.geniculata和P.geniculata ssp.pruinifera为2A核型,而P.geniculata ssp.scythica为1A核型.研究表明:3种植物的核型存在差异;P.geniculata ssp.pruinifera的核型为首次报道,其核型明显不同于P.geniculata和P.geniculata ssp.scythica.
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| 关 键 词： | 核型 拟鹅观草属 |
Karyotypes of Three Taxa in Pseudoroegneria (Poaceae:Triticeae) |
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| YU Hai-qing,DING Chun-bang,ZHOU Yong-hong.Karyotypes of Three Taxa in Pseudoroegneria (Poaceae:Triticeae)[J].Acta Botanica Boreali-Occidentalia Sinica,2009,29(8). |
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| Authors: | YU Hai-qing DING Chun-bang ZHOU Yong-hong |
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| Institution: | YU Hai-qing1,2,DING Chun-bang1,ZHOU Yong-hong1(1 Triticeae Research Institute,Sichuan Agricultural University,Dujiangyan,Sichuan 611830,China,2 Laboratory of Medical Molecular Biology,Luzhou Medical College,Luzhou,Sichuan 646000,China) |
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| Abstract: | The karyotypes of Pseudoroegneria geniculata,P.geniculata ssp.scythica and P.geniculata ssp.pruinifera were studied.The results indicated that:P.geniculata and P.geniculata ssp.scythica were tetraploids,while P.geniculata ssp.pruinifera was hexaploid;The karyotype formulas of P.geniculata,P.geniculata ssp.scythica and P.geniculata ssp.pruinifera were 2n=4x=28=18m(2sat)+10sm(2sat),2n=4x=28=28m(2sat) and 2n=6x=42=36m(6sat)+6sm(2sat),respectively;The karyotype of P.geniculata and P.geniculata ssp.pruinifera we... |
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| Keywords: | Pseudoroegneria geniculata P geniculata ssp scythica P geniculata ssp pruinifera karyotype Pseudoroegneria P geniculata P geniculata ssp scythica P geniculata ssp pruinifera |
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