The genome of the major agricultural weed species, annual ryegrass () was assembled, annotated and analysed. Annual ryegrass is a major weed in grain cropping, and has the remarkable capacity to evolve resistance to herbicides with various modes of action. The chromosome-level assembly was achieved using short- and long-read sequencing in combination with Hi-C mapping. The assembly size is 2.44 Gb with N = 361.79 Mb across 1,764 scaffolds where the seven longest sequences correspond to the seven chromosomes. Genome completeness assessed through BUSCO returned a 99.8% score for complete (unique and duplicated) and fragmented genes using the Viridiplantae set. We found evidence for the expansion of herbicide resistance-related gene families including detoxification genes. The reference genome of is a critical asset for leveraging genetic information for the management of this highly problematic weed species.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9664059 | PMC |
| http://dx.doi.org/10.3389/fgene.2022.1012694 | DOI Listing |
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