As a traditional Chinese medicinal herb

Dendrobium has significant effects in nourishing yin and generating body fluid

benefiting lung and eyes

resisting cancer and prolonging life

thus with a wide distribution and a long history of application. With the development of molecular biological technology

studies on Dendrobium medicinal resources have advanced rapidly. DNA marker technology has the characteristics of micro-scale and high velocity

specificity

accuracy and credibility

and provides a new method for studies on Dendrobium resources. The genetic diversity and genetic relationship among different species of Dendrobium were analyzed based on combined use of RAPD

ISSR

AFLP

SRAP and other molecular markers. The genetic information obtained from these studies could be used for the conservation and development of Dendrobium resources. The combined application of nuclear gene

mitochondrial gene and chloroplast gene can identify Dendrobium effectively and accurately

and provide scientific basis for the further development of specific molecular identification of traditional Chinese medicinal herbs. At the same time

the combined use of different gene sequences can be taken as molecular markers of DNA barcode of Dendrobium

which will provide new ideas and methods for the identification of Dendrobium herbs

and improve the identification speed and efficiency of Dendrobium species effectively. In this paper

molecular identification

DNA sequences

functional genes of Dendrobium genus were discussed

in order to provide the theoretical basis for the further development and application of the medicinal plants

as well as scientific basis for the effective protection and sustainable development of Dendrobium.