The accumulation of recombination events across generations in such selfing plant species may result in rapid fixation and weak selection of both favorable and deleterious mutations 5. Both wild and domesticated soybean are predominantly selfing 4. The cultivation of soybean has been historically confined to East Asia and only recently expanded to North America, South America, and India, positioning it as one of the top crops in terms of growing area worldwide 3. & Zucc.) with distribution in East Asia 1, 2. max) was domesticated an estimated 7000–9000 years ago from wild soybean ( Glycine soja Sieb. Soybean ( Glycine max Merr.) is a globally important crop species, as it is a major source of seed protein and oil. Importantly, genotype imputation with this resource increases the mapping resolution of genome-wide association studies for seed protein and oil traits in a soybean diversity panel. The detected domestication-selective sweeps also show reduced levels of deleterious alleles. This predominantly selfing species shows 7.1% reduction of overall deleterious mutations in domesticated soybean relative to wild soybean and a further 1.4% reduction from landrace to improved accessions. We describe the enhanced detection of 183 domestication-selective sweeps and the patterns of putative deleterious mutations during domestication and improvement. Here we present a genome-wide variation map of 10.6 million single-nucleotide polymorphisms and 1.4 million indels for 781 soybean individuals which includes 418 domesticated ( Glycine max), 345 wild ( Glycine soja), and 18 natural hybrid ( G. Enhancing our understanding of the soybean domestication and improvement process helps boost genomics-assisted breeding efforts. Globally, soybean is a major protein and oil crop.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |