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Genome biology of the paleotetraploid perennial biomass crop Miscanthus

(Summary description)The genome of Miscanthus assembled in this study broadens the available genome resources of comparative genome, and provides the possibility for further understanding the related traits of sorghum grass plants.

Genome biology of the paleotetraploid perennial biomass crop Miscanthus

(Summary description)The genome of Miscanthus assembled in this study broadens the available genome resources of comparative genome, and provides the possibility for further understanding the related traits of sorghum grass plants.

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Miscanthus is a perennial wild grass plant used for paper, roofing, and horticulture, and is now increasingly used as a biomass crop in temperate regions. In 2020, Huazhi Biotechnology Co., Ltd. participated in the project and jointly completed a paper titled "Genome biology of the paleotetraploid perennial biomass crop Miscanthus" published in the journal "Nature communication", reporting the paleotetraploid perennial biomass crop Miscanthus (Miscanthus sinensis).

 

The chromosome-level assembly results of Miscanthus showed that the chromosomes of Miscanthus were associated with diploid sorghum and complex polyploid sugarcane. The asymmetric transposon distribution on the two homologous subgenomes of Mang suggests that Mang's genome is an ancient allotetraploid, and the authors also identify some balanced exchanges of related chromosomal homologous segments. Population analysis of Miscanthus sacchariflorus revealed extensive genetic admixture and hybridization between Miscanthus sacchariflorus and verified the origin of the high-yielding triploid bioenergy crop M. × giganteus. Leaf, stem, and rhizome transcriptional profiles across the growing season provide insights into rhizome development and nutrient cycling, biological processes critical for sustainable biomass accumulation in perennial temperate grasses.

 

The Miscanthus genome reported in this paper broadens the available genomic resources for comparative genomes and provides a possibility for further understanding of the related traits of sorghum grasses.

 

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