Sentence examples for linked arrangements from inspiring English sources
In short, the species with homogenised linked arrangements bear apparently functional 5S genes in the 26S-18S intergenic spacer(s).
These linked arrangements are found among diverse biological taxa including nematodes [ 2], fungi [ 3], crustaceans [ 4], slime moulds [ 5] or mosses [ 6, 7], and they are believed to represent transition states between linked (prokaryotic) and unlinked (eukaryotic) arrangements.
To reveal chromosomal positions of rDNA loci and the degree of repeat homogenisation we conducted FISH assays in selected representatives of the Asteroideae (group where most linked arrangements have been found) and in one Cichorioideae.
However, our recent observations in a group of angiosperms (genus Artemisia, Asteraceae) [ 8] clearly point to the possibility that linked arrangements might not be restricted to prokaryotes and primitive eukaryotes but may occur throughout the tree of life.
The huge decrease observed in the photoluminescence (PL) quantum yield of the resulting particles indicates the formation of core-shell CdSe/TiO2 nanoparticles, which was reported as due to a photoinduced electron transfer from CdSe to TiO2 in a linked arrangement [3].
Thus, linked arrangement of rDNA arose independently in the largest subfamily.
Our results indicate that nearly 25% of Asteraceae species may have evolved unusual linked arrangement of rRNA genes.
These data suggest that a putative Elachanthemum progenitor did have linked arrangement of units that have become eventually lost.
In species displaying linked arrangement the homogenisation of linked rRNA genes most likely went to completion, since no unlinked genes were detected by FISH or Southern blot hybridisation.
For example, Chrysanthemum zawadskii or Elachanthemum intricatum of tribe Anthemideae have unlinked organisation whereas most members of the tribe studied (93% cases) show linked arrangement of rDNAs.
These observations indicate that the linked arrangement found in Ciona savignyi might have been split by a chromosomal rearrangement in Ciona intestinalis.
