Exadactylos Athanasios, Vafidis Dimitrios, Tsigenopoulos Costas S, Gkafas Georgios A
Department of Ichthyology and Aquatic Environment, School of Agriculture Sciences, University of Thessaly, 38446 Volos, Greece.
Institute of Marine Biology, Biotechnology and Aquaculture, Hellenic Centre for Marine Research, 71003 Heraklion, Greece.
Animals (Basel). 2019 Nov 15;9(11):979. doi: 10.3390/ani9110979.
Population dynamics in the marine realm can shape species' spatial structure and genetic variability between given geographical areas. Connectivity is an important factor of species' population structure. In this study, we examined the genetic diversity and structure of white seabream (, L. 1758) in the eastern Mediterranean basin, using a panel of four microsatellite markers. Recorded low values within the study area indicate little evidence of genetic differentiation among populations. Results suggest high gene flow which may imply near-panmixia between populations, indicating the possibility of a probable movement of adult migrants, or strong passive drift at sea in early life stages of the species. To this extent, bibliographically speaking, different species within the Sparidae family favor altered population dynamics patterns with respect to local populations and genetic divergence, in the context of the molecular marker used.
海洋领域的种群动态可以塑造物种的空间结构以及给定地理区域之间的遗传变异性。连通性是物种种群结构的一个重要因素。在本研究中，我们使用一组四个微卫星标记，研究了地中海东部盆地白鲷（, L. 1758）的遗传多样性和结构。研究区域内记录到的低值表明种群间几乎没有遗传分化的证据。结果表明基因流较高，这可能意味着种群间接近随机交配，表明成年洄游者可能移动，或者该物种在幼体阶段在海上有强烈的被动漂流。在这方面，从文献角度来看，在所用分子标记的背景下，鲷科内的不同物种有利于改变局部种群的种群动态模式和遗传分化。
