Polyploidy origin of wheatgrass Douglasdeweya wangii (Triticeae, Poaceae): evidence from nuclear ribosomal DNA internal transcribed spacer and chloroplast trnL–F sequences
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چکیده
منابع مشابه
Limits of nuclear ribosomal DNA internal transcribed spacer (ITS) sequences as species barcodes for Fungi.
In PNAS, the work by Schoch et al. (1) proposed nuclear ribosomal DNA internal transcribed spacer (ITS) sequences as the sole universal barcode for fungi. The work by Schoch et al. (1) stated that “the proposal will satisfy most fungal biologists but not all” (1). I am among those biologists who are not so satisfied and not really surprised either, because ITS has been the most widely used mark...
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To help in the clarification of the taxonomic status of Elymus L. and related genera Agropyron Gaertn., Leymus Hochst., Hordelymus (Jess.) Harz, and Brachypodium P.Beauv., the sequence diversity in the internal transcribed spacer (ITS) region of nuclear ribosomal DNA was studied. ITS data of 64 Triticeae accessions including 40 Elymus, 12 Agropyron, 7 Leymus, and 4 Hordelymus, and 1 Brachypodiu...
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The proportion of polyploid plant species increases at higher latitudes, and it has been suggested that original postglacial Arctic immigrants of some large groups, including grasses, were polyploid. We analyzed noncoding nuclear and chloroplast DNA of all North American diploid Puccinellia (Poaceae) and a subset of arctic polyploids to hypothesize evolutionary relationships among diploids and ...
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The Hengduan Mountains of the Sino-Himalayas are rich in endemic species of Apiaceae subfamily Apioideae. To investigate relationships among these species and to ascertain their higher-level phylogenetic placements within the subfamily, we examined 106 accessions (representing 100 species from 52 genera) including the Chinese endemic genera Changium, Cyclorhiza, Notopterygium, Nothosmyrnium, an...
متن کاملResolution of Prochlorococcus and Synechococcus ecotypes by using 16S-23S ribosomal DNA internal transcribed spacer sequences.
Cultured isolates of the marine cyanobacteria Prochlorococcus and Synechococcus vary widely in their pigment compositions and growth responses to light and nutrients, yet show greater than 96% identity in their 16S ribosomal DNA (rDNA) sequences. In order to better define the genetic variation that accompanies their physiological diversity, sequences for the 16S-23S rDNA internal transcribed sp...
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ژورنال
عنوان ژورنال: Development Genes and Evolution
سال: 2010
ISSN: 0949-944X,1432-041X
DOI: 10.1007/s00427-010-0337-1