Genetic analysis of a recently established Undaria pinnatifida (Laminariales: Alariaceae) population in the northern Wadden Sea reveals close proximity between drifting thalli and the attached population
Genetic analysis of a recently established Undaria pinnatifida (Laminariales: Alariaceae) population in the northern Wadden Sea reveals close proximity between drifting thalli and the attached population
复制标题
对瓦登海北部最近建立的裙带菜（海带目：Alariaceae）群体进行的遗传分析表明，漂流菌体与附着群体之间非常接近
DOI：
10.1080/09670262.2018.1532116
复制
发表时间：
2019-03
影响因子：
2.4
通讯作者：
Kai Bischof
中科院分区：
文献类型：
--
作者：
Tifeng Shan;Shaojun Pang;Xuemei Wang;Jing Li;Li Su;Jessica Schiller;Dagmar Lackschewitz;Jason M. Hall Spencer;Kai Bischof
裙带菜是一种原产于东亚的大型海藻，近几十年来由于其在世界范围内的广泛分布而引起了人们的广泛关注。2016年，在叙尔特岛发现了这种鱼的漂浮碎片，这是该物种在德国的首次记录。2017年发现了附着在当地牡蛎礁上的菌体。叙尔特岛上漂浮和附着的菌体之间的遗传关系，以及它们与来自北方欧洲和本土地区的种群的相关性，迄今为止是未知的。在这里，10个微卫星标记被用来评估最近建立的人口在叙尔特岛和其他五个北方欧洲人口在法国（布列塔尼，西英吉利海峡），荷兰和英格兰（普利茅斯，西英吉利海峡）加上三个自然种群在中国之间的关系。几乎没有遗传分化之间的浮动和附着的人群叙尔特，但他们在遗传上不同于所有其他研究的北方欧洲人口。在叙尔特的新创始人群体中发现的非常低的遗传多样性表明，他们来自遗传相似的父母。与中国人群相比，北方欧洲人群的等位基因数和杂合性均显著减少，这是新近人口聚集地区典型的奠基者效应。显着的遗传差异之间的大多数北方欧洲人口，除了那些在布列塔尼和叙尔特。进一步的研究将侧重于确定可能在贝类养殖场、当地码头或叙尔特岛周围的底栖生境中发现的假定源种群。
ABSTRACT Undaria pinnatifida, a kelp species native to East Asia, has become cosmopolitan and drawn increasing attention due to its worldwide spread in recent decades. Floating fragments of this alga were found washed ashore on Sylt in 2016, the first record of this species in Germany. Thalli attached to local oyster reefs were detected in 2017. The genetic relationship between the floating and attached thalli on Sylt, as well as their relevance to the populations from northern Europe and native regions, was hitherto unknown. Here, 10 microsatellite markers were used to assess relationships between the recently established population on Sylt and five other northern European populations in France (Brittany, West English Channel), the Netherlands and England (Plymouth, West English Channel) plus three natural populations in China. Almost no genetic differentiation was detected between the floating and attached populations on Sylt, but they were genetically distinct from all the other studied northern European populations. The very low genetic diversity revealed in the new founder populations of Sylt suggests that they came from genetically similar parents. The marked reduction in both the number of alleles and heterozygosity in the northern European populations, as compared with the Chinese ones, is typical of founder effects in recently populated regions. Prominent genetic divergence was found between most of the northern European populations except those within Brittany and Sylt. Further studies will focus on identifying the putative source populations that might be found on shellfish farms, in local marinas or the benthic habitats around Sylt Island.
登录
查看更多内容
利用新开发的微卫星标记评估中国代表性传统农耕区养殖和野生裙带菜（褐藻纲）种群之间的遗传连通性
影响因子：
3.3
作者：
Shan Tifeng;Pang Shaojun;Wang Xuemei;Li Jing;Su Li
通讯作者：
Su Li
影响因子：
3.3
作者：
J. K. Pritchard;Matthew Stephens;Peter Donnelly
通讯作者：
J. K. Pritchard;Matthew Stephens;Peter Donnelly
影响因子：
0.6
作者：
D. Grulois;L. Lévêque;F. Viard;K. Frangoudes;M. Valero
通讯作者：
D. Grulois;L. Lévêque;F. Viard;K. Frangoudes;M. Valero
影响因子：
3.3
作者：
Paul M. South;O. Floerl;Barrie M. Forrest;M. Thomsen
通讯作者：
Paul M. South;O. Floerl;Barrie M. Forrest;M. Thomsen
影响因子：
--
作者：
S. Heiser;J. Hall‐Spencer;K. Hiscock
通讯作者：
S. Heiser;J. Hall‐Spencer;K. Hiscock