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United States Department of Agriculture

Agricultural Research Service

Research Project: IMPROVED PLANT GENETIC RESOURCES FOR PASTURES AND RANGELANDS IN THE TEMPERATE SEMIARID REGIONS OF THE WESTERN U.S.

Location: Forage and Range Research

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

Authors
item Yang, Peizhi -
item Zheng, Hongmei -
item Larson, Steven
item Miao, Yanjun -
item Hu, Tianming -

Submitted to: African Journal of Biotechnology
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: May 14, 2010
Publication Date: June 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.

Last Modified: 9/3/2014
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