Anatomical Characteristics and Genetic Relationship of Curcuma gracillima (Zingiberaceae)
Keywords:
Curcuma gracillima, anatomy, ITS, trnL, ZingiberaceaeAbstract
Curcuma gracillima Gagnep. is a rare species and it has been found in Cambodia, Laos, Thailand, and some regions of southern Vietnam. This study provided the micro-morphological and molecular data of this species collected from Xuyen Moc Commune, Ho Chi Minh City, Vietnam for the first time. As a result, the Internal Transcribe Spacer (ITS) and trnL intron of C. gracillima were successfully amplified and sequenced. These sequences were also successfully deposited on the NCBI database with the accession numbers PQ813594 and PQ821005. The genetic relationship of C. gracillima in this study with other taxa of this species from different habitats was also reported. The pairwise alignment of C. gracillima from this study and its taxa from the prior reports showed the genetic variation in the ITS and trnL intron regions among C. gracillima collected from the different locations. In addition, the details of the anatomical characteristics of C. gracillima leaf, leaf sheath, petiole, root, and rhizome were first investigated.
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