Intertidal population genetic dynamics at a microgeographic seascape scale
文献类型：期刊论文
| 作者 | Hu, Zi-Min |
| 刊名 | MOLECULAR ECOLOGY
 |
| 出版日期 | 2013-06-01 |
| 卷号 | 22期号:12页码:3191-3194 |
| 关键词 | Chondrus crispus intertidal niche microgeographic seascape population genetic dynamics sexual traits tidal amplitude |
| ISSN号 | 0962-1083 |
| 通讯作者 | Hu, ZM |
| 中文摘要 | The intertidal community is among the most physically harsh niches on earth, with highly heterogeneous environmental and biological factors that impose strong habitat selection on population abundance, genetic connectivity and ecological adaptation of organisms in nature. However, most genetic studies to date have concentrated on the influence of basin-wide or regional marine environments (e.g. habitat discontinuities, oceanic currents and fronts, and geographic barriers) on spatiotemporal distribution and composition of intertidal invertebrates having planktonic stages or long-distance dispersal capability. Little is known about sessile marine organisms (e.g. seaweeds) in the context of topographic tidal gradients and reproductive traits at the microgeographic scale. In this issue of Molecular Ecology, Krueger-Hadfield etal. () implemented an elaborate sampling strategy with red seaweed (Chondrus crispus) from a 90-m transect stand near Roscoff and comprehensively detected genome-scale genetic differentiation and biases in ploidy level. This study not only revealed that tidal height resulted in genetic differentiation between high- and low-shore stands and restricted the genetic exchange within the high-shore habitat, but also demonstrated that intergametophytic nonrandom fertilization in C.crispus can cause significant deviation from Hardy-Weinberg equilibrium. Such new genetic insights highlight the importance of microgeographic genetic dynamics and life history characteristics for better understanding the evolutionary processes of speciation and diversification of intertidal marine organisms. |
| 英文摘要 | The intertidal community is among the most physically harsh niches on earth, with highly heterogeneous environmental and biological factors that impose strong habitat selection on population abundance, genetic connectivity and ecological adaptation of organisms in nature. However, most genetic studies to date have concentrated on the influence of basin-wide or regional marine environments (e.g. habitat discontinuities, oceanic currents and fronts, and geographic barriers) on spatiotemporal distribution and composition of intertidal invertebrates having planktonic stages or long-distance dispersal capability. Little is known about sessile marine organisms (e.g. seaweeds) in the context of topographic tidal gradients and reproductive traits at the microgeographic scale. In this issue of Molecular Ecology, Krueger-Hadfield etal. () implemented an elaborate sampling strategy with red seaweed (Chondrus crispus) from a 90-m transect stand near Roscoff and comprehensively detected genome-scale genetic differentiation and biases in ploidy level. This study not only revealed that tidal height resulted in genetic differentiation between high- and low-shore stands and restricted the genetic exchange within the high-shore habitat, but also demonstrated that intergametophytic nonrandom fertilization in C.crispus can cause significant deviation from Hardy-Weinberg equilibrium. Such new genetic insights highlight the importance of microgeographic genetic dynamics and life history characteristics for better understanding the evolutionary processes of speciation and diversification of intertidal marine organisms. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 学科主题 | Biochemistry & Molecular Biology ; Environmental Sciences & Ecology ; Evolutionary Biology |
| 类目[WOS] | Biochemistry & Molecular Biology ; Ecology ; Evolutionary Biology |
| 研究领域[WOS] | Biochemistry & Molecular Biology ; Environmental Sciences & Ecology ; Evolutionary Biology |
| 关键词[WOS] | SEAWEED CHONDRUS-CRISPUS ; MASTOCARPUS-PAPILLATUS RHODOPHYTA ; RED SEAWEED ; GRACILARIA-GRACILIS ; LARVAL DISPERSAL ; NORTH-ATLANTIC ; MATING SYSTEM ; LANDSCAPE ; PATTERNS ; CONNECTIVITY |
| 收录类别 | SCI |
| 原文出处 | 10.1111/mec.12327 |
| 语种 | 英语 |
| WOS记录号 | WOS:000320396100001 |
| 公开日期 | 2014-07-17 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/16597]  |
| 专题 | 海洋研究所_实验海洋生物学重点实验室 |
| 作者单位 | Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu, Zi-Min. Intertidal population genetic dynamics at a microgeographic seascape scale[J]. MOLECULAR ECOLOGY,2013,22(12):3191-3194. |
| APA | Hu, Zi-Min.(2013).Intertidal population genetic dynamics at a microgeographic seascape scale.MOLECULAR ECOLOGY,22(12),3191-3194. |
| MLA | Hu, Zi-Min."Intertidal population genetic dynamics at a microgeographic seascape scale".MOLECULAR ECOLOGY 22.12(2013):3191-3194. |
入库方式： OAI收割
来源：海洋研究所
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