Interestingly, many SSRs showed significant differences especially in some photosystem genes, which provided valuable information for understanding the differences in light adaptation among different Fagopyrum species. In addition, a total of 66 different SSR (simple sequence repeats) types were found in the eight Fagopyrum species, ranging from 8 to 16 bp. Among eight Fagopyrum chloroplast genomes, six variable regions ( ndhF-rpl32, trnS-trnG, trnC, trnE-trnT, psbD, and trnV) were detected as promising DNA barcodes. Most of variations of Fagopyrum species cp genomes existed in the LSC and SSC regions. The eight cp genomes ranged, gene number, gene order, and GC content were presented. We determined the sequence differentiation, repeated sequences of the cp genomes, and the phylogeny of Fagopyrum species. urophyllum, were sequenced, and five published cp genomes of Fagopyrum were retrieved for comparative analyses. In this study, the chloroplast (cp) genomes of three Fagopyrum species, F. The genus Fagopyrum is taxonomically confusing due to the complex phenotypes of different Fagopyrum species. dibotrys) are mainly cultivated in China. There are mainly three cultivated buckwheat species, common buckwheat ( Fagopyrum esculentum) is widely cultivated in Asia, Europe, and America, while Tartary buckwheat ( F. 4College of Food Science and Technology, Sichuan Tourism University, Chengdu, Chinaīuckwheat ( Fagopyrum genus, Polygonaceae), is an annual or perennial, herbaceous or semi-shrub dicotyledonous plant.3College of Life Sciences and Food Engineering, Inner Mongolia MINZU University, Tongliao, China.2Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China.1College of Agriculture, Guizhou University, Guiyang, China.Yu Fan 1,2, Ya’nan Jin 2,3, Mengqi Ding 2, Yu Tang 4, Jianping Cheng 1*, Kaixuan Zhang 2* and Meiliang Zhou 2*
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