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The perspective of the incompatible of nucleus and mitochondria in interspecies somatic cell nuclear transfer for endangered species
Reproduction in Domestic Animals ( IF 1.7 ) Pub Date : 2020-11-15 , DOI: 10.1111/rda.13864
Patrycja Mrowiec 1 , Monika Bugno-Poniewierska 1 , Wiesława Młodawska 1
Affiliation  

Taking into account the latest Red List of the International Union for Conservation of Nature in which 25% of all mammals are threatened with extinction, somatic cell nuclear transfer (SCNT) could be a beneficial tool and holds a lot of potential for aiding the conservation of endangered, exotic or even extinct animal species if somatic cells of such animals are available. In the case of shortage and sparse amount of wild animal oocytes, interspecies somatic cell nuclear transfer (iSCNT), where the recipient ooplasm and donor nucleus are derived from different species, is the alternative SCNT technique. The successful application of iSCNT, resulting in the production of live offspring, was confirmed in several combination of closely related species. When nucleus donor cells and recipient oocytes have been used in many other combinations, very often with a very distant taxonomical relation iSCNT resulted only in the very early stages of cloned embryo development. Problems encountered during iSCNT related to mitochondrial DNA (mtDNA)/genomic DNA incompatibility, mtDNA heteroplasmy, embryonic genome activation of the donor nucleus by the recipient oocyte and availability of suitable foster mothers for iSCNT embryos. Implementing assisted reproductive technologies, including iSCNT, to conservation programmes also raises concerns that the production of genetically identical populations might cause problems with inbreeding. The article aims at presenting achievements, limitations and perspectives of iSCNT in maintaining animal biodiversity.

中文翻译:

物种间体细胞核转移中核与线粒体不相容的观点

考虑到国际自然保护联盟的最新红色名录(其中所有哺乳动物中有25%面临灭绝的威胁),体细胞核移植(SCNT)可能是一种有益的工具,在帮助保护人类的自然环境方面具有很大的潜力。濒临灭绝,外来甚至灭绝的动物物种,只要它们具有体细胞。在野生动物卵母细胞短缺和数量稀少的情况下,另一种SCNT技术是种间体细胞核移植(iSCNT),其中受体卵质和供体核来自不同物种。iSCNT的成功应用,导致了活后代的产生,在几种密切相关物种的组合中得到了证实。当将核供体细胞和受体卵母细胞以许多其他组合形式使用时,iSCNT通常具有非常遥远的分类学关系,仅导致克隆胚胎发育的非常早期。在iSCNT期间遇到的问题与线粒体DNA(mtDNA)/基因组DNA不相容,mtDNA异质性,受体卵母细胞对供体核的胚胎基因组活化以及iSCNT胚胎的合适寄养母亲的可用性有关。将包括iSCNT在内的辅助生殖技术应用于保护计划也引起了人们的关注,即遗传上完全相同的种群的生产可能会引起近交问题。本文旨在介绍iSCNT在维持动物生物多样性方面的成就,局限性和观点。在iSCNT期间遇到的问题与线粒体DNA(mtDNA)/基因组DNA不相容,mtDNA异质性,受体卵母细胞对供体核的胚胎基因组活化以及iSCNT胚胎的合适寄养母亲的可用性有关。将包括iSCNT在内的辅助生殖技术应用于保护计划也引起了人们的关注,即遗传上完全相同的种群的生产可能会引起近交问题。本文旨在介绍iSCNT在维持动物生物多样性方面的成就,局限性和观点。在iSCNT期间遇到的问题与线粒体DNA(mtDNA)/基因组DNA不相容,mtDNA异质性,受体卵母细胞对供体核的胚胎基因组活化以及iSCNT胚胎的合适寄养母亲的可用性有关。将包括iSCNT在内的辅助生殖技术应用于保护计划也引起了人们的关注,即遗传上完全相同的种群的生产可能会引起近交问题。本文旨在介绍iSCNT在维持动物生物多样性方面的成就,局限性和观点。包括iSCNT在内的保护计划也引起了人们的担忧,即遗传上完全相同的种群可能会导致近交问题。本文旨在介绍iSCNT在维持动物生物多样性方面的成就,局限性和观点。包括iSCNT在内的保护计划也引起了人们的关注,即遗传上完全相同的种群可能会导致近交问题。本文旨在介绍iSCNT在维持动物生物多样性方面的成就,局限性和观点。
更新日期:2020-11-15
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