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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Ngamriabsakul, C. Jenjittikul, T. Techaprasan, J. Klinbunga, S. |
| Spatial Coverage | Thailand |
| Description | Country affiliation: Thailand Author Affiliation: Techaprasan J ( National Center for Genetic Engineering and Biotechnology, Klong Luang, Pathum Thani, Thailand. jiranan@biotec.or.th) |
| Abstract | Genetic variation and species authentication of 71 Kaempferia accessions (representing 15 recognized, six new, and four unidentified species) found indigenously in Thailand were examined by determining chloroplast psbA-trnH and partial petA-psbJ spacer sequences. Ten closely related species (Boesenbergia rotunda, Gagnepainia godefroyi, G. thoreliana, Globba substrigosa, Smithatris myanmarensis, S. supraneanae, Scaphochlamys biloba, S. minutiflora, S. rubescens, and Stahlianthus sp) were also included. After sequence alignments, 1010 and 865 bp in length were obtained for the respective chloroplast DNA sequences. Intraspecific sequence variation was not observed in Kaempferia candida, K. angustifolia, K. laotica, K. galanga, K. pardi sp nov., K. bambusetorum sp nov., K. albomaculata sp nov., K. minuta sp nov., Kaempferia sp nov. 1, and G. thoreliana, for which more than one specimen was available. In contrast, intraspecific sequence polymorphisms were observed in various populations of K. fallax, K. filifolia, K. elegans, K. pulchra, K. rotunda, K. marginata, K. parviflora, K. larsenii, K. roscoeana, K. siamensis, and G. godefroyi. A strict consensus tree based on combined psbA-trnH and partial petA-psbJ sequences revealed four major groups of Kaempferia species. We suggest that the genus Kaempferia is a polyphyletic group, as K. candida was distantly related and did not group with other Kaempferia species. Polymorphic sites and indels of psbA-trnH and petA-psbJ can be used as DNA barcodes for species diagnosis of most Kaempferia and outgroup species. Nuclear DNA polymorphism should be examined to determine if there has been interspecific hybridization and chloroplast DNA introgression in these taxa. |
| e-ISSN | 16765680 |
| Journal | Genetics and Molecular Research |
| Issue Number | 4 |
| Volume Number | 9 |
| Language | English |
| Publisher | Fundação de Pesquisas Científicas de Ribeirão Preto |
| Publisher Date | 2010-10-05 |
| Publisher Place | Brazil |
| Access Restriction | Open |
| Subject Keyword | Dna, Chloroplast Genetics Genetic Variation Zingiberaceae Dna Primers Genes, Plant Polymerase Chain Reaction Thailand Research Support, Non-u.s. Gov't Discipline Genetics Discipline Molecular Biology Discipline Bioinformatics |
| Content Type | Text |
| Resource Type | Article |
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