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Extremely High Copy Numbers and Polymorphisms of the rDNA Operon Estimated from Single Cell Analysis of Oligotrich and Peritrich Ciliates

open access: yesProtist, 2013
11 pages, 3 figures, 2 tablesThe copy number and sequence variation of the ribosomal DNA (rDNA) operon are of functional significance in evolution and ecology of organisms.
Jun Gong, , Ramon Massana
exaly   +2 more sources

Evolution of rDNA in Nicotiana Allopolyploids: A Potential Link between rDNA Homogenization and Epigenetics [PDF]

open access: yesAnnals of Botany, 2008
The evolution and biology of rDNA have interested biologists for many years, in part, because of two intriguing processes: (1) nucleolar dominance and (2) sequence homogenization. We review patterns of evolution in rDNA in the angiosperm genus Nicotiana to determine consequences of allopolyploidy on these processes.Allopolyploid species of Nicotiana ...
Ales Kovarik   +2 more
exaly   +3 more sources

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