Ribosomal RNA genes structure in somePopulus spp. (Salicaceae) and their hybrids

Autor:	Giuseppe Scarascia Mugnozza, Renato D'Ovidio, O. A. Tanzarella
Rok vydání:	1990
Předmět:	Genetics EcoRI Nucleic acid sequence Plant Science Biology Ribosomal RNA Molecular biology Restriction enzyme Restriction map biology.protein Repeated sequence Gene Ribosomal DNA Ecology Evolution Behavior and Systematics
Zdroj:	Plant Systematics and Evolution. 173:187-196
ISSN:	1615-6110 0378-2697
Popis:	The tandemly repeated multigene families encoding 18S and 25S rRNAs were studied at the restriction enzyme level inPopulus alba L.,Populus deltoidesBartr. exMarsh.,Populus trichocarpaTorr. & Gray and in the hybrids between the last two mentioned species. The analysis of single and double digestion with EcoRI, BamHI, XbaI, and SstI endonucleases showed the presence of single repetitive unit types of 12.25 and 11.75kb inP. alba andP. trichocarpa, respectively.P. deltoides showed two rDNA gene types having the same length (12.25Kb) but different nucleotide sequence in the IGS. The rDNAs genes ofP. deltoides andP. triochocarpa are inherited codominantly in their hybrids.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d76a5b4843cad59a1cac9eed89eb92f2 https://doi.org/10.1007/bf00940862 Zobrazit plný text záznamu Full text from SpringerLink