E. V. Vinogradov, V. V. Karavaev, D. A. Balashov, V. N. Dement’ev, V. M. Simonov, L. A. Shart, E. Yu. Zhurenkova
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引用次数: 0
Abstract
Previously, numerous studies have shown a broad pleiotropic effect of the dominant allele of the gene N of scaly cover. Carriers of this allele are inferior to recessive nn homozygotes in terms of growth rate and viability and also differ in a number of physiological and meristic traits. In the present work, a case of the absence of pleiotropy was found: when scaleless females (ssNn) and males with scattered scale cover (ssnn) were crossed, naked and scattered offspring did not differ in growth rate, viability, and hematological parameters. The pleiotropic effect of the N gene was preserved only in terms of meristic traits. The absence of a negative effect of the N gene on productivity traits opens up the possibility of using naked carps in aquaculture.
摘要 以前的许多研究表明，鳞片覆盖基因 N 的显性等位基因具有广泛的多效应。该等位基因的携带者在生长速度和存活率方面均逊于隐性 nn 等位基因，而且在许多生理和分化性状方面也存在差异。在本研究中，我们发现了一个没有褶效应的案例：当无鳞雌性（ssNn）和有散生鳞片覆盖的雄性（ssnn）杂交时，裸体和散生鳞片覆盖的后代在生长速度、存活率和血液学参数上没有差异。N 基因的多向效应仅在分化性状方面得以保留。N 基因对生产力性状没有负面影响，这为在水产养殖中使用裸鲤提供了可能。
期刊介绍：
Russian Journal of Genetics is a journal intended to make significant contribution to the development of genetics. The journal publishes reviews and experimental papers in the areas of theoretical and applied genetics. It presents fundamental research on genetic processes at molecular, cell, organism, and population levels, including problems of the conservation and rational management of genetic resources and the functional genomics, evolutionary genomics and medical genetics.
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