Ribosomal DNA repeat unit polymorphism in 49 Vicia species

1995 ◽  
Vol 90 (3-4) ◽  
pp. 477-486 ◽  
Author(s):  
S. N. Raina ◽  
Y. Ogihara
Keyword(s):  
Ribosomal Dna ◽  
Repeat Unit ◽  
Vicia Species ◽  
Dna Repeat

A physical map of the ribosomal DNA repeat unit of Aspergillus nidulans

Gene ◽  
1982 ◽  
Vol 20 (2) ◽  
pp. 135-137 ◽  
Author(s):  
Robin A. Lockington ◽  
Graham G. Taylor ◽  
Michael Winther ◽  
Claudio Scazzocchio ◽  
R.Wayne Davies
Keyword(s):  
Aspergillus Nidulans ◽  
Ribosomal Dna ◽  
Physical Map ◽  
Repeat Unit ◽  
Dna Repeat

Cloning of the yeast ribosomal DNA repeat unit in SstI and HindIII lambda vectors using genetic and physical size selections

1978 ◽  
Vol 123 (3) ◽  
pp. 371-386 ◽  
Author(s):  
Peter Philippsen ◽  
Richard A. Kramer ◽  
Ronald W. Davis
Keyword(s):  
Ribosomal Dna ◽  
Repeat Unit ◽  
Physical Size ◽  
Dna Repeat

Organellar genome, nuclear ribosomal DNA repeat unit, and microsatellites isolated from a small-scale of 454 GS FLX sequencing on two mosses

2013 ◽  
Vol 66 (3) ◽  
pp. 1089-1094 ◽  
Author(s):  
Yang Liu ◽  
Laura L. Forrest ◽  
Jillian D. Bainard ◽  
Jessica M. Budke ◽  
Bernard Goffinet
Keyword(s):  
Ribosomal Dna ◽  
Repeat Unit ◽  
Nuclear Ribosomal Dna ◽  
Small Scale ◽  
Organellar Genome ◽  
Dna Repeat

Restriction fragment variation in the nuclear ribosomal DNA repeat unit within and between Picearubens and Piceamariana

1992 ◽  
Vol 22 (2) ◽  
pp. 255-263 ◽  
Author(s):  
Michael S. Bobola ◽  
Robert T. Eckert ◽  
Anita S. Klein
Keyword(s):  
Restriction Fragment ◽  
Ribosomal Dna ◽  
Black Spruce ◽  
Repeat Unit ◽  
Red Spruce ◽  
Classification Model ◽  
Nuclear Ribosomal Dna ◽  
Restriction Fragments ◽  
Dna Repeat ◽  
Polymorphic Restriction

The frequencies of polymorphic restriction fragments for the nuclear ribosomal DNA repeat were compared for 12 provenances of red spruce (Picearubens Sarg.) and 34 provenances of black spruce (Piceamariana (Mill.) B.S.P.). Within an individual as many as five distinct ribosomal DNA repeat unit types could be distinguished. Canonical correlation analysis revealed significant variation of restriction fragment frequencies with a geographic variate comprising latitude and longitude of provenances. Geographic origins accounted for 24.7% of the variation in polymorphic restriction fragments in black spruce and 31.8% of the variation in polymorphic restriction fragments in red spruce. Discriminant analysis, using the restriction fragment frequencies for the ribosomal DNA, was used to develop a classification model for the two species. Tenfold verification of the model produced an average correct classification of 99% for black spruce and 96% for red spruce. Plots of canonical scores for the first and second canonical variâtes clearly separated red spruce from black spruce. This study presents a novel combination of restriction fragment frequency data and multivariate analysis to distinguish species that may not always be differentiated using morphological traits.

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