Genetic structuring of Latris lineata at localized and transoceanic scales
Genetic structuring of Latris lineata at localized and transoceanic scales
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DOI：
10.1007/s00227-007-0666-4
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发表时间：
2007-07-01
期刊：
影响因子：
2.4
通讯作者：
Lyle, Jeremy M.
中科院分区：
文献类型：
--
作者：
Tracey, Sean R.;Smolenski, Adam;Lyle, Jeremy M.
条纹号手（Latris lineata）是一种底栖硬骨鱼，分布在南半球所有主要海洋的温带附近。在塔斯马尼亚水域，该物种被作为一个单一的种群进行管理，尽管没有进行研究来证实遗传panmixia。长期的远洋幼虫期和最近越洋捕获的一条成年鱼表明，在广泛分离的种群之间存在显著的基因混合潜力。线粒体DNA控制区序列的系统发育分析表明，塔斯马尼亚、新西兰和圣保罗/阿姆斯特丹群岛之间没有遗传混合，首次证明该物种存在跨洋规模的种群结构。此外，分子变异分析和系统发育分析表明，塔斯马尼亚周围三个地点的条纹号手没有明显的结构。本研究提供的资料对现代渔业管理技术的设计，如空间实施的海洋保护区，是有用的。此外，关于海洋物种种群结构的逐物种知识有助于对其种群动态和更广泛的海洋生态学关键问题进行生态有用的概括。
Striped trumpeter (Latris lineata) is a demersal teleost distributed around the temperate clines of all the major oceans in the southern hemisphere. Within Tasmanian waters the species is managed as a single stock, although no studies have been performed to confirm genetic panmixia. A protracted pelagic larval phase and a recent transoceanic tag recapture of an adult fish suggest significant potential for genetic mixing between widely separated populations. Phylogenetic analysis of mitochondrial DNA control region sequences suggested no genetic mixing between Tasmania, New Zealand and St Paul/Amsterdam Islands, evidence for the first time that there is population structure at a transoceanic scale for this species. In addition, an analysis of molecular variance coupled with phylogenetic analyses suggested no significant structuring of striped trumpeter from three locations around Tasmania. The information provided in this study is useful for the design of modern fisheries management techniques such as spatially implemented marine reserves. In addition, species-by-species knowledge about population structures of marine species facilitates ecologically useful generalizations concerning their population dynamics and key issues on the broader ecology of the oceans.