AI Article Synopsis
- Soybean, a key crop for oil and protein, has an evolutionary history that is important for improving its adaptability to environmental challenges.* -
- The study analyzed 2,214 soybean genomes, revealing its expansion from southern China and domestication in central China, with most genetic diversity coming from local wild populations.* -
- Findings highlighted the positive selection of genes related to flowering time, offering insights into soybean's evolution and potential resources for future breeding efforts.*
Article Abstract
Soybean is a leguminous crop that provides oil and protein. Exploring the genomic signatures of soybean evolution is crucial for breeding varieties with improved adaptability to environmental extremes. We analyzed the genome sequences of 2,214 soybeans and proposed a soybean evolutionary route, i.e., the expansion of annual wild soybean (Glycine soja Sieb. & Zucc.) from southern China and its domestication in central China, followed by the expansion and local breeding selection of its landraces (G. max (L.) Merr.). We observed that the genetic introgression in soybean landraces was mostly derived from sympatric rather than allopatric wild populations during the geographic expansion. Soybean expansion and breeding were accompanied by the positive selection of flowering time genes, including GmSPA3c. Our study sheds light on the evolutionary history of soybean and provides valuable genetic resources for its future breeding.
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| http://dx.doi.org/10.1007/s11427-022-2158-7 | DOI Listing |
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