Results 21 to 30 of about 69,429 (309)

Tongoloa arguta (Apiaceae), a new species from southwest China [PDF]

PhytoKeys, 2020
A new species Tongoloa arguta (Apiaceae) is described and illustrated in this article. The new species grows in alpine bushes and meadows in south-western China. It resembles T.
Ling-Jian Gui, Jun Wen, Yan-Ping Xiao, Ting Ren, Hong-Yi Zheng, Xing-Jin He   +5 more
doaj   +3 more sources

Transcription of spacer sequences flanking the rat 45S ribosomal DNA gene. [PDF]

Molecular and Cellular Biology, 1987
The transcriptional activity of spacer sequences flanking the rat 45S ribosomal DNA (rDNA) gene were studied. Nascent RNA labeled in in vitro nuclear run-on reactions hybridized with both 5' and 3' spacer regions. The highest level of hybridization was seen with an rDNA fragment containing tandem repeats of a 130-base-pair sequence upstream of the 45S ...
C A, Harrington, D M, Chikaraishi
openaire   +2 more sources

Amplified Ribosomal DNA from Xenopus laevis Has Heterogeneous Spacer Lengths [PDF]

Proceedings of the National Academy of Sciences, 1974
Eco R 1 restriction endonuclease makes two cuts in each repeating unit of amplified ribosomal DNA (rDNA) from Xenopus laevis . The locations of these cuts have been established by comparison of the secondary structure of single-stranded Eco R 1
P K, Wellauer, R H, Reeder, D, Carroll, D D, Brown, A, Deutch, T, Higashinakagawa, I B, Dawid   +6 more
openaire   +2 more sources

Single Strand Conformation Polymorphism Method for Initial Detection DNA Sequences Homogeneity

Hayati Journal of Biosciences, 2010
In molecular phylogenetic study, homogeneity of DNA sequences is a prerequisite before putting it into practice. Internal transcribed spacer (ITS) region of nuclear ribosomal DNA (nrDNA) has been common in phylogenetic study, but a homogenous sequence is
TOPIK HIDAYAT, ADI PANCORO
doaj   +3 more sources

Telomere and ribosomal DNA repeats are chromosomal targets of the bloom syndrome DNA helicase

BMC Cell Biology, 2003
Background Bloom syndrome is one of the most cancer-predisposing disorders and is characterized by genomic instability and a high frequency of sister chromatid exchange. The disorder is caused by loss of function of a 3' to 5' RecQ DNA helicase, BLM. The
Paric Enesa, Schawalder James, Neff Norma F   +2 more
doaj   +1 more source

Evaluation of five regions as DNA barcodes for identification of Lepista species (Tricholomataceae, Basidiomycota) from China [PDF]

PeerJ, 2019
Background Distinguishing among species in the genus Lepista is difficult because of their similar morphologies. Methods To identify a suitable DNA barcode for identification of Lepista species, we assessed the following five regions: internal ...
Siyu Wang, Hongbo Guo, JiaJia Li, Wei Li, Qin Wang, Xiaodan Yu   +5 more
doaj   +2 more sources

A Deconvolution Protocol for ChIP-Seq Reveals Analogous Enhancer Structures on the Mouse and Human Ribosomal RNA Genes

G3: Genes, Genomes, Genetics, 2018
The combination of Chromatin Immunoprecipitation and Massively Parallel Sequencing, or ChIP-Seq, has greatly advanced our genome-wide understanding of chromatin and enhancer structures.
Jean-Clement Mars, Marianne Sabourin-Felix, Michel G. Tremblay, Tom Moss   +3 more
doaj   +1 more source

Molecular Diversity of Mold Associated with Gatotan

Microbiology Indonesia, 2021
Gatotan is a raw material to make gatot, an Indonesian fermented food, especially in Central Java, made from cassava tubers. Traditionally, the cassava tubers are sun-dried for several days until the black color appears.
Steffanus Pranoto Hallis, Anastasia Tatik Hartanti, Agustin Wydia Gunawan   +2 more
doaj   +1 more source

Tertiary-Treated Municipal Wastewater is a Significant Point Source of Antibiotic Resistance Genes Into Duluth-Superior Harbor [PDF]

, 2011
In this study, the impact of tertiary-treated municipal wastewater on the quantity of several antibiotic resistance determinants in Duluth-Superior Harbor was investigated by collecting surface water and sediment samples from 13 locations in Duluth ...
Allen H. K., Alonso A., Amann R. I., Andersson D. I., Arthurson V., Auerbach E. A., Benson D. A., Berhardt A. E., Berhardt A. E., Canton R., Cardinale M., Chopra I., Cotner J. B., David T. Tan, Davies J., Diehl D. L., D’Costa V. M., Ghosh S., Graham D. W., Jessica J. Eichmiller, Levy S. B., Levy S. B., Ling L. L., Lipsitch M., Martínez J., Merlin C., Mi Yan, Moura A., Munir M., Nelson D. K., Novo A., Patrick J. McNamara, Pruden A., Ramsden S. J., Sambrook J., Seurinck S., Smith D. L., Sommer M. O. A., Staley J. T., Storteboom H., Tchobanoglous G., Thioulouse J., Thompson J. D., Timothy M. LaPara, Tucker R. Burch, Xi C., Yi L., Zhang T., Zhang X., Zhang X.-X.   +49 more
core   +3 more sources

Restriction analysis of spacers in ribosomal DNA of Drosophila melanogaster

Nucleic Acids Research, 1979
The sequence arrangement of ribosomal DNA (rDNA) spacers in Drosophila melanogaster was analyzed with restriction endonucleases. Spacers, derived from cloned rDNA repeats and from uncloned purified rDNA, are internally repetitive, as demonstrated by the regular 250 base pairs interval between sites recognized by the enzyme Alu I.
E O, Long, I B, Dawid
openaire   +3 more sources