Data/hora: 03/06/2024 11:57:46

Biblioteca(s): | Embrapa Arroz e Feijão.
Data corrente: | 02/02/2023
Data da última atualização: | 24/03/2023
Autoria: | VANEGAS K. G.; RENDSVIG, J. K. H.; JARCZYSKA, Z. D.; CÔRTES, M. V. de C. B.; VAN ESCH, A. P.; MORERA-GÓMEZ, M.; CONTESINI, F. J.; MORTENSEN, U. H.
Afiliação: | KATHERINA GARCIA VANEGAS, UNIVERSITY OF DENAMARK; JAKOB KRÆMMER HAAR RENDSVIG, UNIVERSITY OF DENMARK; ZOFIA DOROTA JARCZYNSKA, UNIVERSITY OF DENMARK; MARCIO VINICIUS DE C BARROS CORTES, CNPAF; ABEL PETER VAN ESCH, UNIVERSITY OF DENAMARK; MARTÍ MORERA-GÓMEZ, UNIVERSITY OF DENAMARK; FABIANO JARES CONTESINI, UNIVERSITY OF DENAMARK; UFFE HASBRO MORTENSEN, UNIVERSITY OF DENAMARK.
Título: | A Mad7 system for genetic engineering of filamentous fungi.
Ano de publicação: | 2023
Fonte/Imprenta: | Journal of Fungi, v. 9, n. 1, 16, 2023.
ISSN: | 2309-608X
DOI: | https://doi.org/10.3390/jof9010016
Idioma: | Inglês
Conteúdo: | The introduction of CRISPR technologies has revolutionized strain engineering in filamentous fungi. However, its use in commercial applications has been hampered by concerns over intellectual property (IP) ownership, and there is a need for implementing Cas nucleases that are not limited by complex IP constraints. One promising candidate in this context is the Mad7 enzyme, and we here present a versatile Mad7-CRISPR vector-set that can be efficiently used for the genetic engineering of four different Aspergillus species: Aspergillus nidulans, A. niger, A. oryzae and A. campestris, the latter being a species that has never previously been genetically engineered. We successfully used Mad7 to introduce unspecific as well as specific template-directed mutations including gene disruptions, gene insertions and gene deletions. Moreover, we demonstrate that both single-stranded oligonucleotides and PCR fragments equipped with short and long targeting sequences can be used for efficient marker-free gene editing. Importantly, our CRISPR/Mad7 system was functional in both non-homologous end-joining (NHEJ) proficient and deficient strains. Therefore, the newly implemented CRISPR/Mad7 was efficient to promote gene deletions and integrations using different types of DNA repair in four different Aspergillus species, resulting in the expansion of CRISPR toolboxes in fungal cell factories.
Palavras-Chave: | CRISPR; Filamentous fungi; Fungal strain engineering; Mad7.
Thesagro: | Fungo.
Thesaurus Nal: | Aspergillus; Fungi; Genetic engineering.
Categoria do assunto: | X Pesquisa, Tecnologia e Engenharia
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1151460/1/jof-2023.pdf
Registro original: | Embrapa Arroz e Feijão (CNPAF)
Exemplares: | CNPAF - (36697-1) - UPC - AP - DD - 2023 -  - 2023 - DIS