Population genetics of Sargassum horneri (Fucales, Phaeophyta) in China revealed by ISSR and SRAP markers
文献类型：CNKI期刊论文
| 作者 | Yu SH(于深辉); Chong Z(崇卓); Zhao FJ(赵凤娟); Yao JT(姚建亭); Duan DL(段德麟) |
| 发表日期 | 2013-05-15 |
| 出处 | Chinese Journal of Oceanology and Limnology
 |
| 关键词 | Sargassum horneri population genetics ISSR SRAP markers |
| 英文摘要 | Sargassum horneri is a common brown macro-alga that is found in the inter-tidal ecosystems of China. To investigate the current status of seaweed resources and provide basic data for its sustainable development, ISSR (inter simple sequence repeat) and SRAP (sequence related amplified polymorphism) markers were used to analyze the population genetics among nine natural populations of S. horneri. The nine studied populations were distributed over 2 000 km from northeast to south China. The percentage of polymorphic loci P% (ISSR, 99.44%; SRAP, 100.00%), Nei's genetic diversity H (ISSR, 0.107-0.199; SRAP, 0.100-0.153), and Shannon's information index I (ISSR, 0.157-0.291; SRAP, 0.148-0.219) indicated a fair amount of genetic variability among the nine populations. Moreover, the high degree of gene differentiation G st (ISSR, 0.654; SRAP, 0.718) and low gene flow N m (ISSR, 0.265; SRAP, 0.196) implied that there was significant among-population differentiation, possibly as a result of habitat fragmentation. The matrices of genetic distances and fixation indices (F st ) among the populations correlated well with their geographical distribution (Mantel test R=0.541 5, 0.541 8; P=0.005 0, 0.002 0 and R=0.728 6, 0.641 2; P=0.001 0, 0.001 0, respectively); the Rongcheng population in the Shandong peninsula was the only exception. Overall, the genetic differentiation agreed with the geographic isolation. The fair amount of genetic diversity that was revealed in the S. horneri populations in China indicated that the seaweed resources had not been seriously affected by external factors. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | Supported by the National Natural Science Foundation of China(Nos.40618001,40976085) ; the Chinese Academy of Sciences and Guangdong Provincial Joint Projects(No.2009B091300086) ; Public Science and Technology Research Funds Projects of Ocean |
| 卷 | v.31期:03页:141-148 |
| 语种 | 英文; |
| 分类号 | S917.3 |
| ISSN号 | 0254-4059 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/190873]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.KeyLaboratoryofExperimentalMarineBiology,InstituteofOceanology,ChineseAcademyofSciences 2.GraduateUniversityofChineseAcademyofSciences 3.ShandongKeyLaboratoryofEco-environmentalScienceforYellowRiverDelta,BinzhouUniversity |
| 推荐引用方式 GB/T 7714 | Yu SH,Chong Z,Zhao FJ,et al. Population genetics of Sargassum horneri (Fucales, Phaeophyta) in China revealed by ISSR and SRAP markers. 2013. |
入库方式： OAI收割
来源：海洋研究所
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