Morphological characteristics and nucleotide sequence of ITS region and rbcL gene of Cu cang native taro

Abstract

Cu cang taro cultivar in Thuan Chau district, Son La province is a precious indigenous genetic resource with high quality and well adapted to the characteristic natural conditions of Thuan Chau district, Son La province of Vietnam. However, Cu cang taro has been mixed with different cultivars in the locality. In this article, the authors presented morphological characteristics and nucleotide sequence of ITS(Internal Transcribed Spacer) region and rbcL gene of Cu cang taro in Thuan Chau district, Son La province. The ITS region and rbcL sequences isolated from Cu cang taro had sizes 506 and 630 bp. The results of similarity comparison on NCBI identified the DNA isolated from the ITS region, the rbcL gene of Cu cang taro is Colocasia esculenta species. The rbcL gene of Cu cang taro has 99.27% similarity with Colocasia esculenta var. antiquorum.