Genome sequences ofAegilopsspecies of section Sitopsis reveal phylogenetic relationships and provide resources for wheat improvement
| Autor: | Thomas Lux, Hanan Sela, Jennifer Ens, Nils Stein, Raz Avni, Martin Mascher, Heidrun Gundlach, Burkhard Steuernagel, Anna Minz-Dub, Manuel Spannagl, Jasline Deek, Curtis J. Pozniak, Amir Sharon, Klaus F. X. Mayer, Axel Himmelbach, Guotai Yu, Assaf Distelfeld, Brande B. H. Wulff, E. Millet |
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| Rok vydání: | 2021 |
| Předmět: |
2. Zero hunger
0106 biological sciences 0303 health sciences Haplotype block Genetic diversity biology Phylogenetic tree 15. Life on land biology.organism_classification 01 natural sciences Genome 03 medical and health sciences Evolutionary biology Genetic resources Aegilops Gene 030304 developmental biology 010606 plant biology & botany |
| DOI: | 10.1101/2021.08.09.455628 |
| Popis: | Aegilopsis a close relative of wheat (Triticumspp.), andAegilopsspecies in the section Sitopsis represent a rich reservoir of genetic diversity for improvement of wheat. To understand their diversity and advance their utilization, we produced whole-genome assemblies ofAe. longissimaandAe. speltoides. Whole-genome comparative analysis, along with the recently sequencedAe. sharonensisgenome, showed that theAe. longissimaandAe. sharonensisgenomes are highly similar and most closely related to the wheat D subgenome. By contrast, theAe. speltoidesgenome is more closely related to the B subgenome. Haplotype block analysis supported the idea thatAe. speltoidesis the closest ancestor of the wheat B subgenome and highlighted variable and similar genomic regions between the threeAegilopsspecies and wheat. Genome-wide analysis of nucleotide-binding site leucine-rich repeat (NLR) genes revealed species-specific and lineage-specific NLR genes and variants, demonstrating the potential ofAegilopsgenomes for wheat improvement.TeaserGenome sequences of Aegilops species provides a key for efficient exploitation of this rich genetic resource in wheat improvement. |
| Databáze: | OpenAIRE |
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