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DNA barcoding of western North American taxa: Leymus (Poaceae) and Lepidium (Brassicaceae)Author(s): Catherine Mae Culumber
Source: Logan, UT: Utah State University. 100 p. Thesis.
Publication Series: Miscellaneous Publication
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DescriptionMy objective was to determine if polymorphic information from the 18S-5.8S-26S nuclear ribosomal DNA internal transcribed spacer regions and the trnK-psbA, trnK-rps16 chloroplast DNA spacer regions is sufficient 1) to identify a plant specimen to the species level, and 2) to establish the phylogenetic relationship between species. The first study examined the relationship of various North American as well as European and Asian species of perennial, Leymus wildrye grasses (Poaceae). Three North American Leymus taxa, including L. flavescens, L. innovatus, and L. mollis, displayed unique haplotypes in both chloroplast DNA and internal transcribed spacer sequences. However, this specific set of DNA barcodes was insufficient to unambiguously identify individual plants in L. cinereus and L. triticoides, the foremost taxa in the sample set.
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CitationCulumber, Catherine Mae. 2007. DNA barcoding of western North American taxa: Leymus (Poaceae) and Lepidium (Brassicaceae). Logan, UT: Utah State University. 100 p. Thesis.
KeywordsDNA barcoding, Leymus (Poaceae), Lepidium (Brassicaceae), polymorphic information, spacer regions
- Gene expression polymorphisms and ESTs associated with gravitropic response of subterranean branch meristems and growth habit in Leymus wildryes
- Genes controlling plant growth habit in Leymus (Triticeae): maize barren stalk1 (ba1), rice lax panicle, and wheat tiller inhibition (tin3) genes as possible candidates
- DNA markers and gene expression polymorphisms associated with growth habit quantitative trait loci in Leymus wildryes
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