![]() Recent genomic studies have advanced our knowledge of the evolution and domestication of many annual crops however, such information is still limited for perennial fruit crops. The family Rosaceae includes many economically important perennial fruit tree crops of the genera Prunus (peach, almond, cherry, apricot, plum), Malus (apple), and Pyrus (pear). Collectively, this study provides valuable information for understanding the evolution and domestication of perennial fruit tree crops. We also identify a large set of SNPs and/or CNVs, and candidate genes associated with fruit texture, taste, size, and skin color, with implications for genomic-selection breeding in peach. Our exploration of genomic selection signatures and demographic history supports the hypothesis that frugivore-mediated selection occurred several million years before the eventual human-mediated domestication of peach. Our analyses suggest that peach originated about 2.47 Mya in southwest China in glacial refugia generated by the uplift of the Tibetan plateau. ![]() ![]() Here we explore the evolutionary history of peach using a large-scale SNP data set generated from 58 high-coverage genomes of cultivated peach and closely related relatives, including 44 newly re-sequenced accessions and 14 accessions from a previous study. Peach ( Prunus persica) is an economically important fruit crop and a well-characterized model for studying Prunus species.
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June 2023
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