First look into the evolutionary history, phylogeographic and population genetic structure of the Danube barbel in Croatia

IF 1.6 3区环境科学与生态学 Q3 FISHERIES

Knowledge and Management of Aquatic Ecosystems Pub Date : 2021-01-01 DOI:10.1051/KMAE/2021011

L. Raguž, I. Buj, Z. Marčić, V. Veble, Lucija Ivić, D. Zanella, Sven Horvatić, P. Mustafić, M. Ćaleta, Marija Sabolić

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引用次数: 1

Abstract

The Danube barbel,Barbus balcanicusis small rheophilic freshwater fish, belonging to the genusBarbuswhich includes 23 species native to Europe. In Croatian watercourses, three members of the genusBarbusare found,B. balcanicus,B. barbusandB. plebejus, each occupying a specific ecological niche. This study examined cytochromeb(cytb), a common genetic marker used to describe the structure and origin of fish populations to perform a phylogenetic reconstruction of the Danube barbel. Two methods of phylogenetic inference were used: maximum parsimony (MP) and maximum likelihood (ML), which yielded well supported trees of similar topology. The Median joining network (MJ) was generated and corroborated to show the divergence of three lineages ofBarbus balcanicuson the Balkan Peninsula: Croatian, Serbian and Macedonian lineages that separated at the beginning of the Pleistocene. Croatian lineage ofB. balcanicusshows a uniform structure with many recently diverged haplotypes, which was further supported by the star-like shape of the MJ network. Effective size estimates were obtained for populations inhabiting separate river catchments and the results imply the good reproductive potential ofBarbus balcanicusin Croatia, which is in positive correlation with the overall high genetic diversity calculated for its populations. Nevertheless, population sizes of several population seem to be reduced as a consequence of habitat degradation and fragmentation.

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首先看看克罗地亚多瑙河巴贝尔的进化史、系统地理和种群遗传结构

多瑙河倒钩鱼是一种小型的嗜流淡水鱼，属于倒钩鱼属，包括23种原产于欧洲。在克罗地亚的水道中，发现了三种barbusus属的成员，B。balcanicus B。barbusandB。每一颗星都占据着特定的生态位。本研究检测了用于描述鱼类种群结构和起源的常见遗传标记细胞染色质(cytb)，并对多瑙河带鱼进行了系统发育重建。系统发育推断采用了两种方法:最大简约(MP)和最大似然(ML)，得到了具有相似拓扑结构的良好支持树。生成并证实了中位接合网(MJ)，显示了巴尔干半岛巴尔布斯人三个谱系的分化:克罗地亚、塞尔维亚和马其顿谱系，它们在更新世初分离。克罗地亚血统的b。balcanicusus显示出具有许多新近分化的单倍型的统一结构，MJ网络的星状形状进一步支持了这一点。对居住在不同河流流域的种群进行了有效的大小估计，结果表明克罗地亚巴尔巴尔巴尔鱼具有良好的繁殖潜力，这与其种群计算的总体高遗传多样性呈正相关。然而，由于生境退化和破碎化，一些种群的数量似乎减少了。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Knowledge and Management of Aquatic Ecosystems 环境科学-海洋与淡水生物学

CiteScore

3.70

自引率

5.60%

发文量

审稿时长

>12 weeks

期刊介绍： Knowledge and Management of Aquatic Ecosystems (KMAE-Bulletin Français de la Pêche et de la Pisciculture since 1928) serves as a foundation for scientific advice across the broad spectrum of management and conservation issues related to freshwater ecosystems. The journal publishes articles, short communications, reviews, comments and replies that contribute to a scientific understanding of freshwater ecosystems and the impact of human activities upon these systems. Its scope includes economic, social, and public administration studies, in so far as they are directly concerned with the management of freshwater ecosystems (e.g. European Water Framework Directive, USA Clean Water Act, Canadian Water Quality Guidelines, …) and prove of general interest to freshwater specialists. Papers on insular freshwater ecosystems and on transitional waters are welcome. KMAE is not a preferred journal for taxonomical, physiological, biological, toxicological studies, unless a clear link to ecological aspects can be established. Articles with a very descriptive content can be accepted if they are part of a broader ecological context.