Scholarly Literature
This is a database of scholarly literature that concentrates currently on natural and engineered selfish genetic elements (gene drives). The latest are shown here.
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Hidden genomic features of an invasive malaria vector, Anopheles stephensi, revealed by a chromosome-level genome assembly
Tags: Anopheles, Gene drive synthetic, Genomics, MalariaM. Chakraborty, A. Ramaiah, A. Adolfi, P. Halas, B. Kaduskar, L. T. Ngo, S. Jayaprasad, K. Paul, S. Whadgar, S. Srinivasan, S. Subramani, E. Bier, A. A. James and J. J. Emerson, BMC Biology, 19:28. 2021.
The mosquito Anopheles stephensi is a vector of urban malaria in Asia that recently invaded Africa. Studying the genetic basis of vectorial capacity and engineering genetic interventions are both impeded by limitations of a vector’s genome assembly. The existing assemblies of ...
A Code of Ethics for Gene Drive Research
Tags: Biodiversity/Conservation, CRISPR, Ethics, Gene drive synthetic, Invasive species, Policy, Risk and safety, Risk assessmentG. J. Annas, C. L. Beisel, K. Clement, A. Crisanti, S. Francis, M. Galardini, R. Galizi, J. Grünewald, G. Immobile, A. S. Khalil, R. Müller, V. Pattanayak, K. Petri, L. Paul, L. Pinello, A. Simoni, C. Taxiarchi and J. K. Joung, The CRISPR Journal, 4:19:1-8. 2021.
A code of ethics can be a useful tool for all parties involved in the development and regulation of gene drives and can be used to help ensure that a balanced analysis of risks, benefits, and values is taken into consideration for the interest of society and humanity. We have ...
In Our Image: The Ethics of CRISPR Genome Editing
Tags: CRISPR, Ethics, Gene drive synthetic, Gene editing, Synthetic biologyJ. C. Eissenberg, Biomolecular Concepts, 12:1-7. 2021.
Here, I discuss the ethics surrounding the transformative CRISPR/Cas9mediated genome editing technology in the contexts of human genome editing to eradicate genetic disease and of gene drive technology to eradicate animal vectors of human disease.
How to engage communities on a large scale? Lessons from World Mosquito Program in Rio de Janeiro, Brazil [version 2; peer review: 1 approved, 2 approved with reservations]
Tags: Arbovirus, Cytoplasmic incompatibility, Dengue, Ethics, Genetic biocontrol, Policy, Stakeholder engagement, WolbachiaG. B. Costa, R. Smithyman, S. L. O'Neill and L. A. Moreira, Gates Open Research, 2021.
Here we discuss and analyse the framework for community engagement implemented by the WMP in Brazil, during the large-scale deployment of the method in the municipalities of Niterói and Rio de Janeiro, Brazil. Our experience indicates that the community engagement work for ...
Reply to: Issues with combining incompatible and sterile insect techniques
Tags: Aedes, Genetic biocontrol, Incompatible insect technique, WolbachiaY. Li, L. A. Baton, D. Zhang, J. Bouyer, A. G. Parker, A. A. Hoffmann, L. C. Ng, C. H. Tan and Z. Xi, Nature, 590:E3-E5. 2021.
When the aim is elimination of the target population, Uni-CI and Bi-CI do not have appreciably different risks of population replacement. The small-scale field trial8 cited by Moretti and Calvitti in their Comment1 does not provide evidence that Bi-CI protects against population ...
The complete mitogenome sequence of the agricultural pest, clover root weevil: the key to its own demise?
Tags: Genetic biocontrolR. A. Al-Jiab, J. Gillum, A. Alexander, D. M. Tompkins, C. B. Phillips, P. K. Dearden and N. J. Gemmell, Mitochondrial DNA Part B, 4:878-879. 2021.
AbstractWe report the complete mitogenome of Sitona obsoletus, an agricultural pest in New Zealand and some European countries. Like other Sitona mitogenomes, the 6 tRNA gene box is ordered RNSAEF, supporting the hypothesis that this signature is common to, and potentially ...
Issues with combining incompatible and sterile insect techniques
Tags: Aedes, Genetic biocontrol, Incompatible insect technique, WolbachiaR. Moretti and M. Calvitti, Nature, 590:E1-E2. 2021.
In a recent paper, Zheng at al.1 performed field experiments that tested a strategy of mosquito suppression based on the release of functionally sterile males produced by the combination of reproductive unidirectional cytoplasmic incompatibility (which is induced by the bacterium ...
Improving the Phenotypic Properties of the Ceratitis capitata (Diptera: Tephritidae) Temperature-Sensitive Lethal Genetic Sexing Strain in Support of Sterile Insect Technique Applications
Tags: Fruit fly, Genetic biocontrol, Mosquito husbandry, Sterile insect technique (SIT)M. F. Porras, J. S. Meza, E. G. Rajotte, K. Bourtzis and C. Caceres, Journal of Economic Entomology, 113:2688-2694. 2021.
We present the first evidence that this slower development is due to a different gene, here namely slow development (sd), which is closely linked to the tsl gene. Taking advantage of recombination phenomena between the two loci, we report the isolation of a novel temperature ...
Regulating the expression of gene drives is key to increasing their invasive potential and the mitigation of resistance
Tags: Gene drive synthetic, Genetics, Mosquitoes, Replicator/site directed nuclease, Resistance, Selfish genetic elementsA. Hammond, X. Karlsson, I. Morianou, K. Kyrou, A. Beaghton, M. Gribble, N. Kranjc, R. Galizi, A. Burt, A. Crisanti and T. Nolan, PLOS Genetics, 17:e1009321. 2021.
Here we show that restricting the cutting activity of the gene drive to the germline tissue is crucial to maintaining its potency and we illustrate how failure to restrict this activity can lead to the generation of mutations that can make mosquitoes resistant to the gene drive.
Sexual Competitiveness and Induced Egg Sterility by Aedes aegypti and Aedes albopictus Gamma-Irradiated Males: A Laboratory and Field Study in Mexico
Tags: Aedes, Arbovirus, Dengue, Mosquitoes, Sterile insect technique (SIT)J. G. Bond, S. Aguirre-Ibáñez, A. R. Osorio, C. F. Marina, Y. Gómez-Simuta, R. Tamayo-Escobar, A. Dor, P. Liedo, D. O. Carvalho and T. Williams, Insects, 12. 2021.
The sterile insect technique may prove useful for the suppression of mosquito vectors of medical importance in regions where arboviruses pose a serious public health threat. In the present study, we examined the effects of sterilizing irradiation doses across different ratios of ...
GENE DRIVE ACCEPTANCE SURVEY
Tags: Gene drive synthetic, Policy, Regulation, Risk and safety, Stakeholder engagementYouGov, Pollinis, 2021.
This representative survey was conducted by the international market research institute YouGov and polled 8.826 citizens from 8 EU countries in December 2020. It was commissioned by WeMove Europe, Save Our Seeds (Germany), Skiftet (Sweden), France Nature Environnement (FNE) ...
Demographic feedbacks can hamper the spatial spread of a gene drive
Tags: Gene drive synthetic, Genetic biocontrol, Modeling, Population genetics/dynamics, Population modification/replacement, Population suppression, Replicator/site directed nuclease, WolbachiaL. Girardin and F. Débarre, arXiv, 2021.
Our results indicate that taking into account the interplay between population dynamics and population genetics might actually be crucial, as it can effectively reverse the direction of the invasion and lead to failure. Our findings can be extended to other bistable systems, such ...
Playing God and tampering with nature: popular labels for real concerns in synthetic biology
Tags: Biodiversity/Conservation, Ethics, Gene drive, Genetic biocontrol, Policy, Risk and safety, Risk assessment, Stakeholder engagement, Synthetic biologyL. Carter, A. Mankad, E. V. Hobman and N. B. Porter, Transgenic Research, 2021.
We present the findings from a large Australian study (N = 4593) which suggests ‘playing God’ objections and their variants can be multilayered and, at times, accompanied by meaningful information about risk perceptions. We use qualitative analysis of ope
Anopheles gambiae Genome Conservation as a Resource for Rational Gene Drive Target Site Selection
Tags: Gene drive syntheticN. Kranjc, A. Crisanti, T. Nolan and F. Bernardini, Insects, 12. 2021.
In this study we describe a bioinformatic pipeline that allows the analysis of whole genome data for the identification of highly conserved regions that can point at potential functional or structural constraints. The analysis was conducted across the genomes of 22 insect species ...
Drivers of mosquito mating
Tags: Anopheles, Gene drive synthetic, Genetic biocontrol, Pest management, Sterile insect technique (SIT)N. C. Manoukis, Science, 371:340. 2021.
Gene drive systems are based on the release of organisms whose genomes have been modified or engineered to spread a desired allele or trait (such as resistance to the parasites that cause malaria) through a population. Success will depend on the release of genetically modified ...
Clock genes and environmental cues coordinate Anopheles pheromone synthesis, swarming, and mating
Tags: Anopheles, Gene drive synthetic, Genetic biocontrol, Sterile insect technique (SIT)G. Wang, J. Vega-Rodríguez, A. Diabate, J. Liu, C. Cui, C. Nignan, L. Dong, F. Li, C. O. Ouedrago, A. M. Bandaogo, P. S. Sawadogo, H. Maiga, T. L. Alves e Silva, T. V. Pascini, S. Wang and M. Jacobs-Lorena, Science, 371:411. 2021.
Knockdown of per and tim expression affects Anopheles gambiae s.s. and Anopheles stephensi male mating in the laboratory, and it reduces male An. coluzzii swarming and mating under semifield conditions. Light and temperature affect mosquito mating, possibly by modulating per ...
The Promises and Realities of Integration in Synthetic Biology: A View From Social Science
Tags: Gene drive synthetic, Genetic biocontrol, Invasive species, Policy, Stakeholder engagement, Synthetic biologyL. Carter and A. Mankad, Frontiers in Bioengineering and Biotechnology, 8. 2021.
We take stock of thepromises and realities of science integration by sharing our experiences of embarking onthis very challenge in Australia. We conclude by offering suggestions for bringing aboutthe enabling conditions for improved integration across the natural and social ...
White pupae phenotype of tephritids is caused by parallel mutations of a MFS transporter
Tags: Fruit fly, Sterile insect technique (SIT)C. M. Ward, R. A. Aumann, M. A. Whitehead, K. Nikolouli, G. Leveque, G. Gouvi, E. Fung, S. J. Reiling, H. Djambazian, M. A. Hughes, S. Whiteford, C. Caceres-Barrios, T. N. M. Nguyen, A. Choo, P. Crisp, S. B. Sim, S. M. Geib, F. Marec, I. Hacker, J. Ragous, Nature Communications, 12. 2021.
Here, we use classical and modern genetic approaches to identify and functionally characterize causal wp(-) mutations in these distantly related fruit fly species. We find that the wp phenotype is produced by parallel mutations in a single, conserved gene. CRISPR/Cas9-mediated ...
Co‐developing a common glossary with stakeholders for engagement on new genetic approaches for malaria control in a local African setting
Tags: Ethics, Gene drive synthetic, Genetic biocontrol, Stakeholder engagement, Target malariaE. Chemonges Wanyama, B. Dicko, L. Pare Toe, M. B. Coulibaly, N. Barry, K. Bayala Traore, A. Diabate, M. Drabo, J. K. Kayondo, S. Kekele, S. Kodio, A. D. Ky, R. R. Linga, E. Magala, W. I. Meda, S. Mukwaya, A. Namukwaya, B. Robinson, H. Samoura, K. Sanogo, Malaria Journal, 20:53. 2021.
Scientific terminologies are mainly lacking in local languages, yet when research activities involve international partnership, the question of technical jargon and its translation is crucial for effective and meaningful communication with stakeholders. Target Malaria, a ...
Combining refuges with transgenic insect releases for the management of an insect pest with non-recessive resistance to Bt crops in agricultural landscapes
Tags: Agriculture, Genetic biocontrol, Genetically modified organismsT. R. Brewer and M. B. Bonsall, Journal of Theoretical Biology, 509:11. 2021.
Reinforcing the high-dose/refuge strategy with releases of transgenic insects has been suggested as a method for simultaneously managing agricultural pest populations and resistance to transgenic crops. Theoretical and empirical studies have shown that these approaches can work ...
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