Journal of Taiwan Agricultural Research

Author:Kai-Hsun Hsieh, Su-Ju Lin, and Yong-Pei Wu*

Abstract:

    Turmeric (Curcuma longa L.) is a member of ginger family, Zingiberaceae, and has become an important economic crop for industrial uses and spice production. In this study, a total of 19 ginger species and 20 turmeric collected lines which were gathered from Cishan area, Kaohsiung, Taiwan, were subjected to assess the genetic diversity and phylogenentic relationship by using inter-simple sequence repeats (ISSR) markers. For the 19 ginger species, the genetic similarity was ranged from 0.1–0.985, and six distinct groups were clustered by the results of the principal co-ordinates analysis (PCoA) and dendrogram. For the 20 turmeric lines, the genetic similarity was ranged from 0.797 to 0.986, and four distinct groups were clustered by the results of PCoA and dendrogram. Moreover, six of the 19 ginger species exhibited some genetic diversity revealed by ISSR markers. Among these 20 collected lines, CNY12 was exhibited phylogenetically far-related to the other collected lines. The genetic relationships of Zingiberaceae plants constructed herein offered an effective establishment of an agro-climate and a gene pool library of C. longa L. in Taiwan. Despite exposure to environmental stresses and artificial selection for a long time, the vegetative propagation of Taiwanese turmeric existed genetic diversity at DNA molecular level.

Key words:Curcuma longa L. (turmeric), Genetic diversity, Inter-simple sequence repeat (ISSR)

Download: PDF Links