DNA variation and ribosomal-DNA constancy in two Crepis species and the interspecific hybrid exhibiting nucleolar-organiser suppression
نویسندگان
چکیده
منابع مشابه
ribosomal dna intracellular journey and the new upcoming ribosomal organelle
human mitochondrial dna (mtdna) is 16,569 base pairs (bp) in length, coding for 37 genes. during the course of evolution, nearly all the genes expressing ribosomal proteins and ribosomal rnas (rrna) genes have been transferred from the mitochondria to the nucleus. however, mitochondrial dna contains two ribosomal rnas genes (12s and 16s), which have not yet transferred to the nucleus. these two...
متن کاملComparison of nucleolar organiser regions and DNA flow cytometry in the evaluation of pleural effusion.
BACKGROUND In conventional cytological diagnosis of pleural effusions the assessment of morphological features plays an important part. However, false negative and false positive results may occur. In this study conventional cytology was compared with flow cytometric DNA analysis and the argyrophil staining technique for nucleolar organiser regions (AgNOR) to characterise benign and malignant e...
متن کاملNucleolar organiser regions in pathology.
Traditional approaches to pathological diagnosis include macroscopic examination and formalin fixation with the preparation of paraffin sections stained with a variety of histochemical techniques. These routine approaches however may be disappointing in the assessment of many conditions and occasionally fail to render a precise diagnosis or provide adequate prognostic information. Consequently ...
متن کاملcomparison of the amount of debris extruded apically in two rotary techniques: flexmaster and m2
چکیده ندارد.
15 صفحه اولInvestigation of genetic diversity and DNA barcoding of two species (Rachycentron canadum) and (Parastromateus niger) in the Persian Gulf
The aim of this research was to better understand the distribution patterns of parents, larvae and also to obtain barcode records for Rachycentron canadum and Parastromateus niger species according to the species reported from around the world. Sampling was done from two areas of Bandar Mahshahr in Khuzestan province and Bandar-Abbas in Hormozgan province and according to the main fishing point...
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ژورنال
عنوان ژورنال: Heredity
سال: 1976
ISSN: 0018-067X,1365-2540
DOI: 10.1038/hdy.1976.110