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ARS Home » Pacific West Area » Logan, Utah » Forage and Range Research » Research » Publications at this Location » Publication #261638

Title: Phylogenetic relationships of eleven Kobresia accessions from the Tibetan Plateau

Author
item Yang, Peizhi - Northwest Agriculture And Forestry University
item Zheng, Hongmei - Northwest Agriculture And Forestry University
item Larson, Steven
item Miao, Yanjun - Northwest Agriculture And Forestry University
item Hu, Tianming - Northwest Agriculture And Forestry University

Submitted to: African Journal of Biotechnology
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 5/14/2010
Publication Date: 6/7/2010
Citation: Yang, P., Zheng, H., Larson, S.R., Miao, Y., Hu, T. 2010. Phylogenetic relationships of eleven Kobresia accessions from the Tibetan Plateau. African J of Biotech. 9-3359-3367.

Interpretive Summary: Until recently, identification of sedges in the genus Kobresia was dependent on morphological characteristics that were very difficult to distinguish. This research project showed that DNA genotyping and DNA sequencing techniques can be used to identify and distinguish Kobresia sedge plants collected from remote regions of the Tibetan plateau. The DNA sequences of Kobresia from the Tibetan plateau were similar, but not identical to DNA sequences from other Kobresia and sedges from different regions of the world. The DNA genotyping techniques also showed that species found in similar habitats or having similar adaptations showed greater genetic similarity. These results highlight the importance of using biotechnology to help identify and catalogue plant germplasm resources from diverse regions of the World.

Technical Abstract: Until recently, identification of sedges in the genus Kobresia was dependent on morphological characteristics that were very difficult to distinguish. This research project showed that DNA genotyping and DNA sequencing techniques can be used to identify and distinguish Kobresia sedge plants collected from remote regions of the Tibetan plateau. The DNA sequences of Kobresia from the Tibetan plateau were similar, but not identical to DNA sequences from other Kobresia and sedges from different regions of the world. The DNA genotyping techniques also showed that species found in similar habitats or having similar adaptations showed greater genetic similarity. These results highlight the importance of using biotechnology to help identify and catalogue plant germplasm resources from diverse regions of the World.