The present invention relates to mutants of a parent Trichoderma strain, comprising a polynucleotide encoding a polypeptide and one or more (several) genes selected from the group consisting of a first subtilisin-like serine protease gene, a first aspartic protease gene, a trypsin-like serine protease gene, a second subtilisin-like serine protease gene, and a second aspartic protease gene, wherein the one or more (several) genes are modified rendering the mutant strain deficient in the production of one or more (several) enzymes selected from the group consisting of a first subtilisin-like serine protease, a first aspartic protease, a trypsin-like serine protease, a second subtilisin-like serine protease, and a second aspartic protease, respectively, compared to the parent Trichoderma strain when cultivated under identical conditions. The present invention also relates to methods of producing a polypeptide in such mutants and methods for producing such mutants.

A highly efficient ethanol-fermentative yeast having high efficiency in ethanol production is provided without introducing a foreign gene. The highly efficient ethanol-fermentative yeast features a fermentative yeast effectively producing ethanol from pentose and hexose and being deposited to NITE Patent Microorganisms Depositary under the accession number NITE BP-01963.

A highly efficient ethanol-fermentative yeast having high efficiency in ethanol production is provided without introducing a foreign gene. The highly efficient ethanol-fermentative yeast features a fermentative yeast effectively producing ethanol from pentose and hexose and being deposited to NITE Patent Microorganisms Depositary under the accession number NITE BP-01963.

Many studies have shown that CRISPR-Cas nucleases can tolerate up to five mismatches and still cleave; it is hard to predict the effects of any given single or combination of mismatches on activity. Taken together, these nucleases can show significant off-target effects but it can be challenging to predict these sites. Described herein are methods for increasing the specificity of genome editing using the CRISPR/Cas system, e.g., using RNA-guided Foki Nucleases (RFNs), e.g., Fokl-Cas9 or Foki-dCas9-based fusion proteins.

The invention relates to yeast cells with useful characteristics, including being capable of utilizing panose as sole carbon source and/or capable of utilizing one or more dipeptidesas sole nitrogen source. The invention also relates to yeast cells with useful genotypes including comprising at least 4 allelic genes encoding IMA1p and/or at least two allelic genes encoding IMA5p.

Described is a method to transfer chromosomal DNA between two microbial species without genetic engineering or vectors. The strains resulting from this method are chimeric microbial hybrids that can express a combination of genotypes from both parents.

The invention provides an improved host strain for production of desired protein.

The invention provides an improved host strain for production of desired protein.

The invention is directed to methods involved in the production of flavonoids, anthocyanins and other organic compounds. The invention provides cells engineered for the production of flavonoids, anthocyanins and other organic compounds, where the engineered cells include one or more genetic modifications that increase flavonoid production by increasing metabolic flux to flavonoid precursors and/or reducing carbon losses resulting from the production of byproducts.

The invention is directed to methods involved in the production of flavonoids, anthocyanins and other organic compounds. The invention provides cells engineered for the production of flavonoids, anthocyanins and other organic compounds, where the engineered cells include one or more genetic modifications that increase flavonoid production by increasing metabolic flux to flavonoid precursors and/or reducing carbon losses resulting from the production of byproducts.