Hordeum vulgare
Information about Hordeum vulgare Genome
Barley (Hordeum vulgare) is a diploid (2n = 14) cereal crop with a large and complex genome of approximately 5 Gb, which is predominantly composed of transposable elements (TEs), accounting for around 80% of its genome. Originating in the Neolithic period in West Asia, barley has been cultivated for over 10,000 years and has adapted to diverse agroclimatic regions, ranging from the Ethiopian Highlands to the Qinghai-Tibet Plateau. It is widely grown in temperate regions worldwide and serves as a staple for food, animal feed, and malt production. Due to its resilience to abiotic stresses such as drought and salinity, barley is of considerable agronomic importance. The first barley reference genome was published in 2012 by the International Barley Genome Sequencing Consortium. Subsequent improvements, including the Morex V2 assembly, have significantly advanced our understanding of barley genetics. Morex V2, constructed using the TRITEX pipeline[1].represents a major improvement over previous assembly. It offers higher contiguity and fewer internal gaps, providing a more complete and accurate representation of the barley genome.
The version (Morex V2) was used as the reference genome for further analysis; it has the following information:
The version (Morex V2) was used as the reference genome for further analysis; it has the following information:
● Genome Size: 4.65 Gb
● Number of Chromosomes:7
● Scaffold N50: 3.4 Mb
● Scaffold N90: 287 kb
● Contig N50: 32.7 kb
● Super-scaffold N50: 40.2 Mb
● Super-scaffold N90: 2.0 Mb
● Number of Chromosomes:7
● Scaffold N50: 3.4 Mb
● Scaffold N90: 287 kb
● Contig N50: 32.7 kb
● Super-scaffold N50: 40.2 Mb
● Super-scaffold N90: 2.0 Mb
Genome Re-sequencing Projects and Variation Identification
Recently, 300 wild and domesticated barley accessions have been re-sequenced:
● 2020 - Jayakodi et al. The barley pan-genome reveals the hidden legacy of mutation breeding[2].
We gathered these data, and present in the Genome Variation Map (GVM).
● 2020 - Jayakodi et al. The barley pan-genome reveals the hidden legacy of mutation breeding[2].
We gathered these data, and present in the Genome Variation Map (GVM).
References
[1]Monat C, Padmarasu S, Lux T, Wicker T, Gundlach H, Himmelbach A, et al. TRITEX: chromosome-scale sequence assembly of Triticeae genomes with open-source tools.. Genome Biol 2019, 20:284. [PMID=31849336]
[2]Jayakodi M The barley pan-genome reveals the hidden legacy of mutation breeding.. Nature 2020, 588:284-9. [PMID=33239781]
