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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Modeling the efficacy of CRISPR gene drive for snail immunity on schistosomiasis control

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R. E. Grewelle, J. Perez-Saez, J. Tycko, E. K. O. Namigai, C. G. Rickards and G. A. De Leo,  PLOS Neglected Tropical Diseases,  16:e0010894. 2022.
CRISPR gene drives could revolutionize the control of infectious diseases by accelerating the spread of engineered traits that limit parasite transmission in wild populations. Gene drive technology in mollusks has received little attention despite the role of freshwater snails as ...

Gene drive by Fusarium SKC1 is dependent on its competing allele

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J. M. Lohmar, N. A. Rhoades, T. M. Hammond and D. W. Brown,  Fungal Genetics and Biology,  163:103749. 2022.
The Fusarium verticillioides SKC1 gene driver is transmitted to offspring in a biased manner through spore killing. The mechanism that allows SKC1 to kill non-SKC1 offspring while sparing others is poorly understood. Here we report that gene drive by SKC1 is dependent on SKC1's ...

Expression of mosquito miRNAs in entomopathogenic fungus induces pathogen-mediated host RNA interference and increases fungal efficacy

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C. Cui, Y. Wang, Y. Li, P. Sun, J. Jiang, H. Zhou, J. Liu and S. Wang,  Cell Reports,  41:111527. 2022.
Summary The growing threat of insecticide resistance prompts the urgent need to develop additional tools for mosquito control. Entomopathogenic fungi provide an eco-friendly alternative to chemical insecticides. One limitation to the use of mycoinsecticides is their relatively ...

Cross-kingdom RNAi to enhance the efficacy of insect pathogens

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S. Asgari,  Trends in Parasitology,  2022.
Insect pathogens play significant roles in the biocontrol of medical and agricultural pests. Cui et al. demonstrated that genetically modified (GM) fungi expressing host mosquito miRNAs could enhance the efficacy of the fungus by suppressing the host immune response. This opens ...

Monotonicity properties arising in a simple model of Wolbachia invasion for wild mosquito populations

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D. Vicencio, O. Vasilieva and P. Gajardo,  Mathematical Biosciences and Engineering,  20:1148-1175. 2022.
Using tools borrowed from monotone dynamical system theory, in the proposed model, we prove the existence of an invariant threshold manifold that allows us to provide practical recommendations for performing single and periodic releases of Wolbachia-carrying mosquitoes, seeking ...

Pulled, pushed or failed: the demographic impact of a gene drive can change the nature of its spatial spread

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L. Kläy, L. Girardin, V. Calvez and F. Débarre,  arXiv,  2022.
Understanding the temporal spread of gene drive alleles -- alleles that bias their own transmission -- through modeling is essential before any field experiments. In this paper, we present a deterministic reaction-diffusion model describing the interplay between demographic and ...

New self-sexing Aedes aegypti strain eliminates barriers to scalable and sustainable vector control for governments and communities in dengue-prone environments

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S. A. M. Spinner, Z. H. Barnes, A. M. Puinean, P. Gray, T. Dafa’alla, C. E. Phillips, C. Nascimento de Souza, T. F. Frazon, K. Ercit, A. Collado, N. Naish, E. Sulston, G. C. Ll. Phillips, K. K. Greene, M. Poletto, B. D. Sperry, S. A. Warner, N. R. Rose, G,  Frontiers in Bioengineering and Biotechnology,  10. 2022.
For more than 60 years, efforts to develop mating-based mosquito control technologies have largely failed to produce solutions that are both effective and scalable, keeping them out of reach of most governments and communities in disease-impacted regions globally. High pest ...

Combining transgenesis with paratransgenesis to fight malaria

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W. Huang, J. Vega-Rodriguez, C. Kizito, S.-J. Cha and M. Jacobs-Lorena,  eLife,  11:e77584. 2022.
Malaria is among the deadliest infectious diseases, and Plasmodium, the causative agent, needs to complete a complex development cycle in its vector mosquito for transmission to occur. Two promising strategies to curb transmission are transgenesis, consisting of genetically ...

Ethics of gene drive mosquitoes for malaria elimination

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A. J. Roberts,  McMaster University,  2022.
This thesis is concerned with presenting analyses regarding key ethical issues regarding and arising from the development and potential use of gene drive modified mosquitoes for the purpose of malaria elimination. Each of the chapters constituting this thesis offers a rigorously ...

Hidden endosymbionts: A male-killer concealed by another endosymbiont and a nuclear suppressor

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K. M. Richardson, P. A. Ross, B. S. Cooper, W. R. Conner, T. Schmidt and A. A. Hoffmann,  bioRxiv,  2022.10.19.512817. 2022.
Maternally transmitted endosymbiotic bacteria that cause male killing (MK) have only been described from a few insects, but this may reflect challenges in their detection rather than a rarity of MK. Here we identify MK Wolbachia in populations of Drosophila pseudotakahashii, ...

Hurdles in responsive community engagement for the development of environmental biotechnologies

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A. M. Normandin, L. M. Fitzgerald, J. Yip and S. W. Evans,  Synthetic Biology,  7:ysac022. 2022.
Recent calls for engaging communities in biotechnology development do not draw enough attention to the hurdles that must be overcome for engagement strategies to effectively feed back into research design and conduct. These hurdles call into question many standard ways of ...

Driving down malaria transmission with engineered gene drives

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W. T. Garrood, P. Cuber, K. Willis, F. Bernardini, N. M. Page and R. E. Haghighat-Khah,  Frontiers in Genetics,  13. 2022.
The last century has witnessed the introduction, establishment and expansion of mosquito-borne diseases into diverse new geographic ranges. Malaria is transmitted by female Anopheles mosquitoes. Despite making great strides over the past few decades in reducing the burden of ...

Mosquito Gene Drives and the Malaria Eradication Agenda

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Editor: R. Carballar-Lejarazu,,  Jenny Stanford Publishing,  2022.
Malaria is one of most serious infectious diseases today and has afflicted humankind for thousands of years. A significant number of people still die from this mosquito-borne disease, despite the use of various malaria prevention and control methods over hundreds of years and ...

Assessing single-locus CRISPR/Cas9-based gene drive variants in the mosquito Aedes aegypti via single generation crosses and modeling

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W. Reid, A. E. Williams, I. Sanchez-Vargas, J. Lin, R. Juncu, K. E. Olson and A. W. E. Franz,  G3 Genes|Genomes|Genetics,  2022.
Critical to the design of a single-locus autonomous GD is that the selected genomic locus is amenable to both GD and appropriate expression of the antiviral effector. In our study, we used reverse engineering to target two intergenic genomic loci, which had previously shown to be ...

Introgression of a synthetic sex ratio distortion transgene into different genetic backgrounds of Anopheles coluzzii

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P. Pollegioni, T. Persampieri, R. L. Minuz, A. Bucci, A. Trusso, S. Di Martino, C. Leo, M. Bruttini, M. Ciolfi, A. M. Waldvogel, F. Tripet, A. Simoni, A. Crisanti and R. Müller,  Insect Molecular Biology,  2022.
The development of genetically modified mosquitoes (GMM) and their subsequent field release offers innovative approaches for vector control of malaria. A non-gene drive self-limiting male-bias Ag(PMB)1 strain has been developed in a 47-year-old laboratory G3 strain of Anopheles ...

Anopheles homing suppression drive candidates exhibit unexpected performance differences in simulations with spatial structure

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S. E. Champer, I. K. Kim, A. G. Clark, P. W. Messer and J. Champer,  eLife,  11:e79121. 2022.
Recent experiments have produced several Anopheles gambiae homing gene drives that disrupt female fertility genes, thereby eventually inducing population collapse. Such drives may be highly effective tools to combat malaria. One such homing drive, based on the zpg promoter ...

Wolbachia wAlbB inhibit dengue and Zika infection in the mosquito Aedes aegypti with an Australian background

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L. E. Hugo, G. Rašić, A. J. Maynard, L. Ambrose, C. Liddington, C. J. E. Thomas, N. S. Nath, M. Graham, C. Winterford, B. M. C. R. Wimalasiri-Yapa, Z. Xi, N. W. Beebe and G. J. Devine,  PLOS Neglected Tropical Diseases,  16:e0010786. 2022.
Biological control of mosquito vectors using the endosymbiotic bacteria Wolbachia is an emerging strategy for the management of human arboviral diseases. We recently described the development of a strain of Aedes aegypti infected with the Wolbachia strain wAlbB (referred to as ...

The wtf meiotic driver gene family has unexpectedly persisted for over 100 million years

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M. De Carvalho, G. S. Jia, A. Nidamangala Srinivasa, R. B. Billmyre, Y. H. Xu, J. J. Lange, I. M. Sabbarini, L. L. Du and S. E. Zanders,  eLife,  11. 2022.
Meiotic drivers are selfish elements that bias their own transmission into more than half of the viable progeny produced by a driver+/driver- heterozygote. Meiotic drivers are thought to exist for relatively short evolutionary timespans because a driver gene or gene family is ...

Risk Assessment on the Release of Wolbachia-Infected Aedes aegypti in Yogyakarta, Indonesia

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D. Buchori, A. Mawan, I. Nurhayati, A. Aryati, H. Kusnanto and U. K. Hadi,  Insects,  13. 2022.
Wolbachia-infected Aedes aegypti is the latest technology that was developed to eliminate dengue fever. The Ministry of Research and Technology of the Republic of Indonesia (Kemenristekdikti) established an expert group to identify future potential risks that may occur over a ...

Improvement of Resistance in Plants Against Insect-Pests Using Genome Editing Tools

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S. Bhat and S. Kumar,  Genome Editing: Current Technology Advances and Applications for Crop Improvement,  2022.
During growth period plants are subjected to both biotic and abiotic stresses. Like other biotic stresses, insect-pests are the most serious challenge for the plants particularly in yield losses. Genome editing techniques are becoming an emerging technology bringing real ...

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