| Invasion and spreading of Cabomba caroliniana revealed by RAPD markers |
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| 作者姓名： | 金孝锋 丁炳扬 高树琴 姜维梅 |
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| 作者单位： | [1]College of Life Sciences, Zhejiang University, Hangzhou 310012, China [2]School of Life ＆Envtronment Sctence, Wenzhou Normal College, Wenzhou 325027, China |
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| 基金项目： | Supported by National Natural Science Foundation of China （No. 39970145） and Major State Basic Research Development Program of China （No. G2000046803）.ACKN0WLEDGEMENTS The authors thank sincerely to Dr. Zhang Wenju for his advice and courtesy of an important literature, to Dr. Wu Feijie for her help of data analysis, also to Mr. Fang Jie, Mr. Wang Yuefeng and Miss Yang Xu for collecting some samples of the study. |
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| 摘 要： | Applying randomly amplified polymorphic DNA （RAPD）, the genetic variation of Cabomba caroliniana Gray （cabomba or fanwort）, a new alien plant in China, was analyzed in this paper. Total 143 bands, including 47 polymorphic bands, were amplified from 23 primers in 20 samples. The sampling distance was large, but its genetic diversity was low. The main results were that： （1） Cabomba, which grew and dispersed mainly in fragment, was an abundant and dominant species in freshwater, and its main dispersal mechanism was vegetative reproduction. （2） Cabomba was originally introduced into China as an aquarium submerged plant. Somehow, those discarded cabomba became invasive species in the areas of Hangzhou, Shanghai, and Meicheng, and other places. （3） Although the level of genetic diversity in cabomba was low, their rapid dispersion and propagation could seriously harm to local aquatic community. Therefore, specific measure should be used to control cabomba from uncontrolled spreading and damage to local vegetation communities.
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| 关 键 词： | 水盾草 RAPD 特征特性 生物入侵 基因多样性 |
| 收稿时间： | 2004-09-16 |
| 修稿时间： | 2005-05-09 |
Invasion and spreading of Cabomba caroliniana revealed by RAPD markers |
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| JIN Xiaofeng, DING Bingyang, GAO Shuqin, JIANG Weimei.Invasion and spreading of Cabomba caroliniana revealed by RAPD markers[J].Chinese Journal of Oceanology and Limnology,2005,23(4):406-413. |
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| Authors: | JIN Xiaofeng DING Bingyang GAO Shuqin JIANG Weimei |
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| Abstract: | Applying randomly amplified polymorphic DNA (RAPD), the genetic variation of Cabomba caro- liniana Gray (cabomba or fanwort), a new alien plant in China, was analyzed in this paper. Total 143 bands, in- cluding 47 polymorphic bands, were amplified from 23 primers in 20 samples. The sampling distance was large, but its genetic diversity was low. The main results were that: (1) Cabomba, which grew and dispersed mainly in fragment, was an abundant and dominant species in freshwater, and its main dispersal mechanism was vegetative reproduction. (2) Cabomba was originally introduced into China as an aquarium submerged plant. Somehow, those discarded cabomba became invasive species in the areas of Hangzhou, Shanghai, and Meicheng, and other places. (3) Although the level of genetic diversity in cabomba was low, their rapid dispersion and propagation could seriously harm to local aquatic community. Therefore, specific measure should be used to control cabomba from uncontrolled spreading and damage to local vegetation communities. |
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| Keywords: | Cabomba caroliniana (cabomba) alien species biological invasion genetic diversity RAPD-PCR |
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