A high-quality genome assembly highlights rye genomic characteristics and agronomically important genes

0545920 - ÚEB 2022 RIV US eng J - Journal Article
Li, G. - Wang, L. - Yang, J. - He, H. - Jin, H. - Li, X. - Ren, T. - Ren, Z. - Li, F. - Han, X. - Zhao, X. - Dong, L. - Li, Y. - Song, Z. - Yan, Z. - Zheng, N. - Shi, C. - Wang, Z. - Yang, S. - Xiong, Z. - Zhang, M. - Sun, G. - Zheng, X. - Gou, M. - Ji, C. - Du, J. - Zheng, H. - Doležel, Jaroslav - Deng, X. - Stein, N. - Yang, Q. - Zhang, K. - Wang, D.
A high-quality genome assembly highlights rye genomic characteristics and agronomically important genes.
Nature Genetics. Roč. 53, č. 4 (2021), s. 574-584. ISSN 1061-4036. E-ISSN 1546-1718
R&D Projects: GA MŠMT(CZ) EF16_019/0000827
Institutional support: RVO:61389030
Keywords : Hexaploidy * Wheat * Aegilops Tauschii
OECD category: Biochemistry and molecular biology
Impact factor: 41.376, year: 2021
Method of publishing: Open access
http://doi.org/10.1038/s41588-021-00808-z

Rye is a valuable food and forage crop, an important genetic resource for wheat and triticale improvement and an indispensable material for efficient comparative genomic studies in grasses. Here, we sequenced the genome of Weining rye, an elite Chinese rye variety. The assembled contigs (7.74 Gb) accounted for 98.47% of the estimated genome size (7.86 Gb), with 93.67% of the contigs (7.25 Gb) assigned to seven chromosomes. Repetitive elements constituted 90.31% of the assembled genome. Compared to previously sequenced Triticeae genomes, Daniela, Sumaya and Sumana retrotransposons showed strong expansion in rye. Further analyses of the Weining assembly shed new light on genome-wide gene duplications and their impact on starch biosynthesis genes, physical organization of complex prolamin loci, gene expression features underlying early heading trait and putative domestication-associated chromosomal regions and loci in rye. This genome sequence promises to accelerate genomic and breeding studies in rye and related cereal crops.
Permanent Link: http://hdl.handle.net/11104/0322529