当前位置: X-MOL 学术BMC Genet. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Production and verification of the first Atlantic salmon (Salmo salar L.) clonal lines.
BMC Genetics ( IF 2.9 ) Pub Date : 2020-07-08 , DOI: 10.1186/s12863-020-00878-8
Tom Johnny Hansen 1 , David Penman 2 , Kevin Alan Glover 3, 4 , Thomas William Kenneth Fraser 1 , Tone Vågseth 1 , Anders Thorsen 3 , Anne Grete Eide Sørvik 3 , Per Gunnar Fjelldal 1
Affiliation  

In several fish species homozygous and heterozygous clonal lines have been produced using gynogenetic and androgenetic techniques. These lines are standardized and can be reproduced over generations. In rainbow trout such lines have existed for decades and has become important research tools in genome studies as well as in studies of commercially important traits. The Atlantic salmon is one of the best studied fish species globally, but all experiments are done on fish of wild or domesticated origin and access to standardized immortal fish lines would be of great benefit. Here, we describe the protocols developed to produce mitotic gynogenes, and from these the first clonal lines in Atlantic salmon. Atlantic salmon eggs fertilized with UV irradiated sperm combined with a pressure shock applied at 4700–4800 minC at 8 °C gave all homozygous (doubled haploid) gynogenetic progeny with high survival. From the six first maturing females, five all homozygous clonal lines were produced by meiotic gynogenesis and were verified as clonal and identical to their mother with microsatellite markers. We have now produced the first documented cloned Atlantic salmon lines. This work demonstrates the potential for production of further Atlantic salmon clonal lines, potentially with distinct characteristics. Such lines will provide an important resource for further elucidation of phenotypic and genetic traits in this globally important species.

中文翻译:

第一条大西洋鲑鱼(Salmo salar L.)无性系的生产和验证。

在几种鱼类中,已使用雌激素和雄激素技术制备了纯合和杂合的克隆系。这些线是标准化的,可以世代复制。在虹鳟鱼中,这样的品系已经存在了数十年,并且已经成为基因组研究以及商业上重要的性状研究中的重要研究工具。大西洋鲑是全球研究最好的鱼类之一,但是所有实验都是在野生或驯养的鱼类上进行的,使用标准化的不朽鱼类将有很大益处。在这里,我们描述了产生有丝分裂的雌激素的发展协议,并从这些鲑鱼的第一个克隆系。用紫外线照射的精子受精的大西洋鲑鱼卵,再加上在8°C下于4700–4800 minC施加的压力冲击,使所有纯合(双单倍体)雌核发育子代均具有很高的存活率。通过减数分裂的雌核发育,从六位第一批成熟的雌性中产生了五个全纯合克隆系,并被证实是克隆的,并且与它们的母亲具有微卫星标记相同。现在,我们已经生产出第一个有记录的克隆大西洋鲑鱼品系。这项工作证明了进一步生产大西洋鲑鱼无性系的潜力,可能具有独特的特征。这样的品系将为进一步阐明该全球重要物种的表型和遗传特征提供重要资源。通过减数分裂的雌核发育产生了全部五个纯合的克隆系,并被证实是克隆的,并且与它们的母亲具有微卫星标记相同。现在,我们已经生产出第一个有记录的克隆大西洋鲑鱼品系。这项工作证明了进一步生产大西洋鲑鱼无性系的潜力,可能具有独特的特征。这样的品系将为进一步阐明该全球重要物种的表型和遗传特征提供重要资源。通过减数分裂的雌核发育产生了全部五个纯合的克隆系,并被证实是克隆的,并且与它们的母亲具有微卫星标记相同。现在,我们已经生产出第一个有记录的克隆大西洋鲑鱼品系。这项工作证明了进一步生产大西洋鲑鱼无性系的潜力,可能具有独特的特征。这样的品系将为进一步阐明该全球重要物种的表型和遗传特征提供重要资源。
更新日期:2020-07-08
down
wechat
bug