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Genetic research streamlines single-sex breeding programs

机译:基因研究简化了单性育种计划

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Aresearch project by Canada's Natural Sciences, Engineering and Research Council and the University of New Brunswick (UNB) has identified a genetic marker for producing single-sex populations of salmonids. This marker could have a significant impact on salmonid aquaculture."From an aquaculture perspective, females are generally more desirable animals," says the project lead, UNB's Dr. Tillmann Benfey. "The way we make all-female populations is that we have to look at the genetics behind what determines sex for a species."The sex of a salmonid is determined the same way as in mammals — eggs always have an X chromosome while sperm carries either an X or Y. As such, it is the sperm that determines sex and that is the key.
机译:加拿大自然科学,工程与研究委员会和新不伦瑞克大学(UNB)共同进行的Aresearch项目确定了生产鲑鱼单性种群的遗传标记。该标志可能对鲑科水产养殖产生重大影响。“从水产养殖的角度来看,雌性通常是更可取的动物,”项目负责人,UNB的Tillmann Benfey博士说。 “建立全雌性种群的方法是,我们必须研究决定物种性别的背后的遗传学。”鲑鱼的性别与哺乳动物的确定方式相同-卵总是具有X染色体,而精子携带X或Y。因此,决定性别的是精子,这才是关键。

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