Phenotypic plasticity and taxonomy of Cladophora gracilis(Griffiths) Kützing(Cladophorales, Chlorophyta) in the western Yellow Sea with the implication of its DNA barcode
文献类型：CNKI期刊论文
| 作者 | Bingxin Huang; Linhong Teng; Jingjing Jiang; Lanping Ding |
| 发表日期 | 2020-10-15 |
| 出处 | Acta Oceanologica Sinica
 |
| 关键词 | Cladophora gracilis morphology observation molecular identification 18S rDNA ITS |
| 英文摘要 | Due to extensive morphological plasticity, the taxonomy of Cladophora species remains unclear. As one of the widely distributed species, C. gracilis was reported to hold many varieties, which make it difficult to identify the species. This study explored the morphology diversity of nine C. gracilis samples collected along the coast of western Yellow Sea. Some samples showed extremely varied characteristics, by which one cannot classify them correctly. Hence, 18 S rDNA and nuclear ribosomal DNA internal transcribed spacer regions(ITS) sequences were employed to delimit species. For 18 S rDNA, sequence similarity ranged from 99.6% to 100%. For ITS region, the similarity ranged from 98.7% to 100%. Molecular data strongly suggested that the morphologically heterogeneous samples were actually the same species. Characteristics comparison of the samples revealed that the taxonomy criteria including branching pattern and density, thallus color, height and texture varied widely, influenced by environmental conditions and age of alga. Besides, cell dimensions, as the relatively stable criterion, also exhibited intraspecific variance. Successful application of 18 S rDNA and ITS sequences indicated that molecular method can be a powerful assistant as DNA barcodes to traditional morphology taxonomy. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | The National Natural Science Foundation of China under contract Nos 31670199, 31400186 and 30499340 ; the Knowledge Innovation Project of Chinese Academy of Sciences under contract No. KSCX2-YW -Z-018 ; the Scientific Research Plan of Tianjin Municipal Education Committee under contract No. JW1705 ; the Research Fund for Talented Scholars of Tianjin Normal University (2016) |
| 卷 | v.39期:10页:166-174 |
| 语种 | 英文; |
| 分类号 | Q949.2 |
| ISSN号 | 0253-505X |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/187976]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.CollageofLifeSciences,TianjinNormalUniversity 2.InstituteofOceanology,ChineseAcademyofSciences 3.TianjinKeyLaboratoryofAnimalandPlantResistance |
| 推荐引用方式 GB/T 7714 | Bingxin Huang,Linhong Teng,Jingjing Jiang,et al. Phenotypic plasticity and taxonomy of Cladophora gracilis(Griffiths) Kützing(Cladophorales, Chlorophyta) in the western Yellow Sea with the implication of its DNA barcode. 2020. |
入库方式： OAI收割
来源：海洋研究所
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