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) On July 12, researchers at the National Key Laboratory of Crop Adversity Biology in dry areas of Northwestern University of Agriculture, Forein science and Technology published a research paper in Genomic Biology, revealing that the genetic diversity of hexalyte wheat comes from frequent in-plant hybridization with wild wheat and interbreeding with far-off weeds.
As a member of the International Wheat Genome Sequencing Alliance, researchers at Northwestern University of Agriculture, Forging and Technology took the lead at the end of 2016 in obtaining internally shared, as-yet-unpunished reference genome information for hexalyte wheat, and conducting genome-wide resequencing of 93 wild wheat, hexaeth farm and main plant varieties from around the world. Faced with the challenge of highly repetitive polyhedrome genomic analysis, they developed a new analytical process to create comprehensive wheat variation group information that revealed a full range of variability genealogies and sources of variation, such as genetic variation in the subgenomes of hexalyx wheat, the degree of genetic differentiation within and between populations, and the selected signals in the domestication and improvement phases of the world's most widely grown crops.
, the first large-scale genome-wide resequencing study, provided the largest and most complete collection of genome variants of hexa-wheat and its wild ancestors, screening for large-scale gene infiltration from multiple wild wheat populations and distant species, some of which appeared significantly in the population with domestication or improvement. Frequency changes and overlaps with known chain areas of quantitative characters suggest that these fragments may play an important role in domestication and improvement.
research will provide important data resources for understanding the origin, evolution and domestication history of wheat, overcoming the homogenization of wheat genetic resources, and promoting wheat genetic improvement.
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