%0 Dataset
%T DNA barcode dataset of alpine desert plants on the Qinghai Tibet Plateau (2017-2021)
%J National Cryosphere Desert Data Center
%I National Cryosphere Desert Data Center(www.ncdc.ac.cn)
%U http://www.ncdc.ac.cn/portal/metadata/aab68722-5300-48f6-9c90-3aac16e217bf
%W NCDC
%R 10.12072/ncdc.i-veg.db7040.2025
%A ZHAO Xueyong
%K DNA barcode;ITS;matK;rbcL;trnL-F;trnH-psbA
%X This dataset is based on raw sequence data, which has been double compared with GenBank and local databases, and further analyzed using genetic distance analysis (such as Barcoding Gap and sequence similarity comparison) and phylogenetic tree analysis to systematically eliminate low-quality and redundant sequences. This processing flow significantly improves the accuracy of species identification and the overall reliability of the database, ultimately constructing a high-quality DNA barcode reference database for seed plants in arid regions of China. We have also updated the v2 version of the database, which contains sequence data that has been synchronized and made public in GenBank, in order to provide a more solid, continuously updated, and publicly available data foundation for regional biodiversity monitoring and protection  This data takes the Qaidam Basin on the Qinghai Tibet Plateau in China as the core area of the survey, taking into account regions such as the Ali Plateau valley on the Qinghai Tibet Plateau. From 2017 to 2021, the main desert plants in these areas were surveyed, and specimens and DNA molecular materials were collected. According to project requirements, sequence 5 DNA barcode fragments (ITS, matK, rbcL, trnL-F, psbA trnH) from each plant material. This dataset contains 781 DNA barcodes with 3327 entries, including 696 plant DNA barcodes with 2951 entries in the Qaidam Basin and 85 DNA barcodes with 376 entries in the Ali region.