Efficient and simple production of transgenic mice and rabbits using the new DMSO-sperm mediated exogenous DNA transfer method

2006 ◽  
Vol 73 (5) ◽  
pp. 589-594 ◽  
Author(s):  
Wei Shen ◽  
Lan Li ◽  
Qingjie Pan ◽  
Lingjiang Min ◽  
Huansheng Dong ◽  
...  
2009 ◽  
Vol 23 (1) ◽  
pp. 33-40 ◽  
Author(s):  
Yongju Zhao ◽  
Hong Wei ◽  
Yong Wang ◽  
Lingbin Wang ◽  
Mingju Yu ◽  
...  

1991 ◽  
Vol 71 (2) ◽  
pp. 287-291 ◽  
Author(s):  
J. S. Gavora ◽  
B. Benkel ◽  
H. Sasada ◽  
W. J. Cantwell ◽  
P. Fiser ◽  
...  

Experiments were carried out to transform laboratory mice and domestic chickens by use of sperm incubated with bacterial plasmid DNA. Following demonstration of "uptake" of such DNA by sperm of both species, attempts were made to replicate a previously published procedure (Lavitrano et al. 1989, Cell 57: 717–723) for producing transgenic mice through in vitro fertilization (IVF). Also, female mice and hens were inseminated (AI) with sperm which had been incubated in a DNA solution. Such incubation did not influence the fertility or hatchability of the hens' eggs. However, no transformed progeny were detected among 45 mice produced by IVF or among 69 mice and 470 chickens produced by AI. Key words: Sperm-mediated DNA transfer, mice, chickens


2007 ◽  
Vol 33 (3) ◽  
pp. 180-182 ◽  
Author(s):  
N. A. Volkova ◽  
A. O. Tulyakova ◽  
L. A. Volkova ◽  
N. A. Zinov’eva ◽  
L. K. Ernst ◽  
...  

2020 ◽  
Author(s):  
Xi-Xi Li ◽  
Cheng Fang ◽  
Jun-Peng Zhao ◽  
Xiao-Yu Zhou ◽  
Zhihua Ni ◽  
...  

Abstract Background: Although horizontal gene transfer (HGT) is a widely accepted force in the evolution of prokaryotic genomes, its role in the evolution of eukaryotic genomes remains hotly debated. Some bdelloid rotifers that are resistant to extreme desiccation and radiation undergo a very high level of HGT, whereas a similar report of another desiccation-resistant invertebrate, the tardigrade, remains controversial. Overall, the DNA double-strand breaks (DSBs) induced by prolonged desiccation have been postulated to open a gateway to the nuclear genome for exogenous DNA integration and thus to facilitate the HGT process, thereby enhancing the rate of endosymbiotic DNA transfer (EDT). Results: We first surveyed the abundance of nuclear mitochondrial DNAs (NUMTs) and nuclear plastid DNAs (NUPTs) in five eukaryotes that are highly resistant to desiccation: the bdelloid rotifers Adineta vaga and Adineta ricciae , the tardigrade Ramazzottius varieornatus , and the resurrection plants Dorcoceras hygrometricum and Selaginella tamariscina . Excessive NUMTs or NUPTs were not detected. Furthermore, we compared 24 groups of desiccation-tolerant organisms with their relatively less desiccation-tolerant relatives but did not find a significant difference in NUMT/NUPT contents. Conclusions: Desiccation may induce DSBs, but it is unlikely to dramatically increase the frequency of exogenous sequence integration in most eukaryotes. The capture of exogenous DNA sequences is possible only when DSBs are repaired through a subtype of non-homologous end joining, named alternative end joining (alt-EJ). Due to the deleterious effects of the resulting insertion mutations, alt-EJ is less frequently initiated than other mechanisms.


1995 ◽  
Vol 224 (2) ◽  
pp. 611-612 ◽  
Author(s):  
M. Takeuchi ◽  
H. Fujisawa

2007 ◽  
Vol 77 (Suppl_1) ◽  
pp. 237-237
Author(s):  
Xingshen Sun ◽  
Xiaoming Liu ◽  
Yaling Yi ◽  
Meihui Luo ◽  
Juan Chen ◽  
...  

2021 ◽  
Author(s):  
Tsubasa Nishi ◽  
Naoaki Shinzawa ◽  
Masao Yuda ◽  
Shiroh Iwanaga

Abstract The current CRISPR/Cas9 system for Plasmodium falciparum suffers from technical problems caused by plasmid constructs, such as delays in establishing transgenic parasites during drug selection and unexpected integration of circular donor DNA by single-crossover recombination. Although these problems can be solved by using linear donor templates, such an approach requires highly efficient introduction of DNA and rapid completion of recombination because linear DNA is easily lost from the parasites during multiplication. Here, we overcame these problems by developing a highly efficient DNA transfer method and Cas9-expressing parasites. Using our new CRISPR/Cas9 system, transgenic parasites were established in two weeks without any unexpected recombination or off-target mutations. Furthermore, with our system, two genes on different chromosomes were successfully modified in one transfection. Because of its high efficiency and robustness, our new CRISPR/Cas9 system will become a standard technique for genetic engineering of P. falciparum and dramatically advance studies of this parasite.


2020 ◽  
Author(s):  
Xi-Xi Li ◽  
Cheng Fang ◽  
Jun-Peng Zhao ◽  
Xiao-Yu Zhou ◽  
Zhihua Ni ◽  
...  

Abstract Background: Although horizontal gene transfer (HGT) is a widely accepted force in the evolution of prokaryotic genomes, its role in the evolution of eukaryotic genomes remains hotly debated. Some bdelloid rotifers that are resistant to extreme desiccation and radiation undergo a very high level of HGT, whereas in another desiccation-resistant invertebrate, the tardigrade, the pattern does not exist. Overall, the DNA double-strand breaks (DSBs) induced by prolonged desiccation have been postulated to open a gateway to the nuclear genome for exogenous DNA integration and thus to facilitate the HGT process, thereby enhancing the rate of endosymbiotic DNA transfer (EDT).Results: We first surveyed the abundance of nuclear mitochondrial DNAs (NUMTs) and nuclear plastid DNAs (NUPTs) in five eukaryotes that are highly resistant to desiccation: the bdelloid rotifers Adineta vaga and Adineta ricciae, the tardigrade Ramazzottius varieornatus, and the resurrection plants Dorcoceras hygrometricum and Selaginella tamariscina. Excessive NUMTs or NUPTs were not detected. Furthermore, we compared 24 groups of desiccation-tolerant organisms with their relatively less desiccation-tolerant relatives but did not find a significant difference in NUMT/NUPT contents.Conclusions: Desiccation may induce DSBs, but it is unlikely to dramatically increase the frequency of exogenous sequence integration in most eukaryotes. The capture of exogenous DNA sequences is possible only when DSBs are repaired through a subtype of non-homologous end joining, named alternative end joining (alt-EJ). Due to the deleterious effects of the resulting insertion mutations, alt-EJ is less frequently initiated than other mechanisms.


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