Biodiversity Science

Previous Article     Next Article

Patterns of morphological variation of alligator weed (Alternanthera philoxeroides): from native to invasive regions

Xiaoyun Pan1, Hanzhao Liang , Alejandro Sosa2, Yupeng Geng1, Bo Li1, Jiakuan Chen1*   

  1. 1 Ministry of Education Key Laboratory for Biodiversity Science & Ecological Engineering, Institute of Biodiversity Sci-ence, Fudan University, Shanghai 200433, China
    2 South American Biological Control Laboratory, USDA-ARS, Hurlingham-Buenos Aires 1868, Argentina
  • Received:2005-10-24 Online:2006-05-20
  • Jiakuan Chen,Xiaoyun Pan

The damage caused by biological invasions has traditionally been thought to result from alien species taking advantage of ecological differences between the native and introduced regions. In contrast, evidence is in-creasing that invasive plants can undergo rapid adaptive evolution during the process of range expansion. Using a common garden approach, we compared 19 morphological and anatomical traits of Alternanthera philoxeroides collected in native (Argentina) and invasive (China and USA) regions. The results show that native and invasive A. philoxeroides have become genetically differentiated. Populations from Argentina had significant morphological variation in nine traits, with heritability varying from 49% to 89%. The nine traits are stomatal density, stomatal index, diameter of stem, diameter of pith cavity, thickness of vascular cylinder, thickness of cortex, area ratio of vascular cylinder, area ratio of pith cavity, and leaf index. However, populations from introduced regions showed no significant variations in any of the 19 traits, indicating that the morphological differences within introduced regions might be based on phenotypic plasticity.Based on the result of PCA (primary component analysis), all five introduced populations and one population from Argentina (Santa Fé, 59°49′W, 29°16′S) can be clustered as one group, implying that the Santa Fé population may have similar genotypes with the lineage introduced to China. The existence of genetically differentiation of A. philoxeroides between native and introduced regions should be considered in any pro-grams that attempt management or utilization of this plant.

Key words: molecular ecology, biodiversity, conservation biology, population conservation and restoration, species diversity

[1] Xing Yuan, Wu Xiaoping, Ouyang Shan, Zhang Junqian, Xu Jing, Yin Senlu, Xie Zhicai. Assessment of macrobenthos biodiversity and potential human-induced stressors in the Ganjiang River system [J]. Biodiv Sci, 2019, 27(6): 648-657.
[2] Zou Anlong, Ma Suhui, Ni Xiaofeng, Cai Qiong, Li Xiuping, Ji Chengjun. Response of understory plant diversity to nitrogen deposition in Quercus wutaishanica forests of Mt. Dongling, Beijing [J]. Biodiv Sci, 2019, 27(6): 607-618.
[3] Liu Yan, Yang Yushuang. Importance of conservation priority areas for bryophyte biodiversity in Chongqing [J]. Biodiv Sci, 2019, 27(6): 677-682.
[4] Gui Xujun, Lian Juyu, Zhang Ruyun, Li Yanpeng, Shen Hao, Ni Yunlong, Ye Wanhui. Vertical structure and its biodiversity in a subtropical evergreen broad- leaved forest at Dinghushan in Guangdong Province, China [J]. Biodiv Sci, 2019, 27(6): 619-629.
[5] Mu Jun, Wang Jiaojiao, Zhang Lei, Li Yunbo, Li Zhumei, Su Haijun. Field monitoring using infrared cameras and activity rhythm analysis on mammals and birds in Xishui National Nature Reserve, Guizhou, China [J]. Biodiv Sci, 2019, 27(6): 683-688.
[6] Zhang Xiaoling, Li Yichao, Wang Yunyun, Cai Hongyu, Zeng Hui, Wang Zhiheng. Influence of future climate change in suitable habitats of tea in different countries [J]. Biodiv Sci, 2019, 27(6): 595-606.
[7] Li Hanxi, Huang Xuena, Li Shiguo, Zhan Aibin. Environmental DNA (eDNA)-metabarcoding-based early monitoring and warning for invasive species in aquatic ecosystems [J]. Biodiv Sci, 2019, 27(5): 491-504.
[8] Shao Xinning, Song Dazhao, Huang Qiaowen, Li Sheng, Yao Meng. Fast surveys and molecular diet analysis of carnivores based on fecal DNA and metabarcoding [J]. Biodiv Sci, 2019, 27(5): 543-556.
[9] Zhu Baijing, Xue Jingrong, Xia Rong, Jin Miaomiao, Wu You, Tian Shanyi, Chen Xiaoyun, Liu Manqiang, Hu Feng. Effect of soil nematode functional guilds on plant growth and aboveground herbivores [J]. Biodiv Sci, 2019, 27(4): 409-418.
[10] Hu Yifeng, Yu Wenhua, Yue Yang, Huang Zhenglanyi, Li Yuchun, Wu Yi. Species diversity and potential distribution of Chiroptera on Hainan Island, China [J]. Biodiv Sci, 2019, 27(4): 400-408.
[11] Ma Yanjie, He Haopeng, Shen Wenjing, Liu Biao, Xue Kun. Effects of transgenic maize on arthropod diversity [J]. Biodiv Sci, 2019, 27(4): 419-432.
[12] Zhao Yang,Wen Yuanyuan. Development of Convention on Biological Diversity’s Global Platform for Business & Biodiversity: Policy suggestion for China [J]. Biodiv Sci, 2019, 27(3): 339-346.
[13] Yan Wenbo,Ji Shengnan,Shuai Lingying,Zhao Leigang,Zhu Dapeng,Zeng Zhigao. Spatial distribution patterns of mammal diversity in Yangxian County of Shaanxi Province on the southern slope of the Qinling Mountains [J]. Biodiv Sci, 2019, 27(2): 177-185.
[14] Chen Zuoyi, Xu Xiaojing, Zhu Suying, Zhai Mengyi, Li Yang. Species diversity and geographical distribution of the Chaetoceros lorenzianus complex along the coast of China [J]. Biodiv Sci, 2019, 27(2): 149-158.
[15] Qian Haiyuan,Yu Jianping,Shen Xiaoli,Ding Ping,Li Sheng. Diversity and composition of birds in the Qianjiangyuan National Park pilot [J]. Biodiv Sci, 2019, 27(1): 76-80.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
[1] Jiang Gao-ming. A Study on the Historical Development Present Characteristics and Managements of the Urban Vegetation of Chengde City[J]. Chin Bull Bot, 1994, 11(04): 33 -38 .
[2] Shen Song-dong;Li Yi and Zhang Xiao-hong. Hydrolysis Squash Technique for Proembryo Development in Pedicularis przewalskii[J]. Chin Bull Bot, 1996, 13(01): 56 -57 .
[3] Chen Zhao;Yujie Fu;Yuangang Zu;Naijing Zhang;Lili Wang. Some Strategies for Studying the Production of Biodiesel from Oil Plants[J]. Chin Bull Bot, 2006, 23(3): 312 -319 .
[4] Haiyong Liang Xiuying Xia Xiaorong Gao Qiao Su. Vector Construction with UGPase and anti4CL, and Their Expression in Transgenic Tobacco[J]. Chin Bull Bot, 2007, 24(04): 459 -464 .
[5] . [J]. Chin Bull Bot, 1998, 15(专辑): 44 -45 .
[6] Liu Jia-xi and Li Xue-dong. Studies on the Spore Morphology of Athyriaeeae from Beijing I. Cystopteris, Gymnocarpium, Allantodia[J]. Chin Bull Bot, 1997, 14(04): 38 -41 .
[7] . [J]. Chin Bull Bot, 1994, 11(专辑): 36 .
[8] Zhang Fu-ren and Mo Ri-gen. A Simple Technique for Observing Fracture Surface of Pollen Grains by SEM[J]. Chin Bull Bot, 1992, 9(03): 63 -64 .
[9] Jing Jiang Shuan Han Chunpeng Song. SB202190 Modulate Salicylic Acid-induced H2O2 Generation SB202190 Modulate Salicylic Acid-induced H2O2 Generation[J]. Chin Bull Bot, 2007, 24(04): 444 -451 .
[10] Hui Zhang;Wenkai Tang;Xin Tan;Lulu Gong;Xuebao Li. Progresses in the Study of Gene Regulation of Cotton Fiber Development[J]. Chin Bull Bot, 2007, 24(02): 127 -133 .