Oviparous Vertebrate Germ Cell Transplantation for Lineage Induction
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Solution Overview
Problem
Conventional methods for obtaining germ cell lineage in oviparous vertebrates, such as fish, are inefficient and lack effective techniques for transplanting genetically modified cells to induce differentiation, limiting the production of genetically modified or cloned animals.
Innovation Solution
A method involving the transplantation of isolated undifferentiated germ cells from a donor oviparous vertebrate into a host oviparous vertebrate at a specific developmental stage after the development of black pigmentary cells in the retina and before the formation of multiple germ cell layers, utilizing visualization and genetic modification techniques to enhance the efficiency of germ cell lineage induction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional transplantation methods are used to transplant isolated primordial germ cells into host individuals, then genetic modification and cloning can be attempted, but the efficiency of obtaining germ cell lineage is low
Solution Approach 1:
The patent applies preliminary action by selecting and transplanting undifferentiated germ cells at a specific early developmental stage (after black pigmentary cells develop in the retina but before multiple layers of germ cells form in the genitals). This timing ensures the host is primed to receive and support germ cell lineage development, thereby improving efficiency without extending the overall process time
2Reliability
If isolated undifferentiated germ cells are transplanted into early embryos, then germ cell lineage can be obtained, but the survival and differentiation rates are insufficient
Solution Approach 1:
The patent applies parameter changes by precisely controlling the developmental stage parameter of the host individual at the time of transplantation. By specifying the window after black pigmentary cell development in the retina and before multiple germ cell layer formation, the patent optimizes the physiological conditions for cell survival and differentiation, achieving higher reliability without increasing procedural complexity
Data Source
AI summary
Provided is a method for obtaining the germ cell lineage of an oviparous vertebrate more efficiently than conventional techniques. A host oviparous vertebrate is prepared at a developmental stage after the development of black pigmentary cells in the retina and before the formation of multiple layers of germ cells in the genitals, and isolated undifferentiated germ cells from a donor oviparous vertebrate are transplanted into the host oviparous vertebrate.