Title：
Genetic variation and geographical differentiation revealed using ISSR
markers in tung tree, Vernicia fordii
Authors：
Corresponding
Author：
Lingling Zhang, Shiyou Lu, Dongfa Sun and Junhua Peng*
Pubyear：
2015
Title of
Journal：
Journal of Genetics
Paper
Code：
Volume：
94
Number：
Page：
e5-e9
Others：
Classification：
Source：
Abstract：
Tung tree, Vernicia fordii is an oil-bearing woody plant species of Euphorbiaceae, native to China and cultivated for over one thousand years (Potter 1959). The oil extracted from tung tree fruit, called as China wood oil or tung oil, is a superior drying oil used in production of paints, varnishes and polymers. The eleostearic acid is the main components of tung oil, and contains three conjugated unsaturated double bonds. This molecular structure endows tung oil with active chemical property and thus distinctive from other plant oils resulting in a wide-application prospect in many fields, such as electronics, aerospace and advanced ink (Bhuyan et al. 2010). Recently, tung oil was discovered to be an excellent feedstock for biodiesel production after blending with medium-chain fatty acid oils or 0# biodiesel (Shang et al. 2010; Chen et al. 2012). Evaluation of germplasm collection and genetic variation are essential for breeding tung tree cultivars with high oil yield and quality. However, there are a few reports on the genetic evaluation of tung tree germplasm. Li et al. (2008, 2009) investigated genetic diversity of 64 tung tree cultivars from six provinces in China, and demonstrated some level of association between intersimple sequence repeat (ISSR) markers and the eleostearic content in tung tree. In the present study, we analysed genetic variation and differentiation between two geographical populations using ISSR markers.
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