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The first initiative of DNA barcoding of ornamental plants from Egypt and potential applications in horticulture industry

机译：埃及观赏植物的DNA条码化的首创及其在园艺行业中的潜在应用

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DNA barcoding relies on short and standardized gene regions to identify species. The agricultural and horticultural applications of barcoding such as for marketplace regulation and copyright protection remain poorly explored. This study examines the effectiveness of the standard plant barcode markers (matK and rbcL) for the identification of plant species in private and public nurseries in northern Egypt. These two markers were sequenced from 225 specimens of 161 species and 62 plant families of horticultural importance. The sequence recovery was similar for rbcL (96.4%) and matK (84%), but the number of specimens assigned correctly to the respective genera and species was lower for rbcL (75% and 29%) than matK (85% and 40%). The combination of rbcL and matK brought the number of correct generic and species assignments to 83.4% and 40%, respectively. Individually, the efficiency of both markers varied among different plant families; for example, all palm specimens (Arecaceae) were correctly assigned to species while only one individual of Asteraceae was correctly assigned to species. Further, barcodes reliably assigned ornamental horticultural and medicinal plants correctly to genus while they showed a lower or no success in assigning these plants to species and cultivars. For future, we recommend the combination of a complementary barcode (e.g. ITS or trnH-psbA) with rbcL + matK to increase the performance of taxa identification. By aiding species identification of horticultural crops and ornamental palms, the analysis of the barcode regions will have large impact on horticultural industry.
机译：DNA条码依赖于短而标准化的基因区域来识别物种。条形码在农业和园艺领域的应用（例如用于市场监管和版权保护）仍未得到很好的研究。这项研究检查了标准植物条形码标记（matK和rbcL）在埃及北部私人和公共苗圃中鉴定植物种类的有效性。这两个标记是从161种园艺重要性的62个植物科的225个标本中测序的。 rbcL（96.4％）和matK（84％）的序列回收率相似，但是rbcL（75％和29％）的正确分配给各个属和物种的标本数量低于matK（85％和40％） ）。 rbcL和matK的组合使正确的通用和物种分配数量分别达到83.4％和40％。个别地，两种标记的效率在不同的植物科之间有所不同。例如，正确地将所有棕榈标本（菊科）分配给物种，而仅将一个菊科的个体正确分配给物种。此外，条形码将观赏性园艺植物和药用植物正确地正确地分配给属，而在将这些植物分配给物种和品种时却显示出较低的成功或没有成功。为了将来，我们建议将互补条形码（例如ITS或trnH-psbA）与rbcL + matK结合使用，以提高分类单元识别的性能。通过帮助园艺作物和观赏棕榈树的物种识别，条形码区域的分析将对园艺业产生重大影响。

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