Nuclear DNA Contents of Coreopsis nuecensoides and C. nuecensis (Asteraceae), a Progenitor-Derivative Species Pair

1984 ◽  
Vol 145 (2) ◽  
pp. 240-245 ◽  
Author(s):  
H. James Price ◽  
Daniel J. Crawford ◽  
Randall J. Bayer

PROTOPLASMA ◽  
2006 ◽  
Vol 228 (4) ◽  
pp. 167-177 ◽  
Author(s):  
P. Caputo ◽  
M. Frediani ◽  
G. Venora ◽  
C. Ravalli ◽  
M. Ambrosio ◽  
...  


1998 ◽  
Vol 44 (7) ◽  
pp. 617-624
Author(s):  
Kenji NAKAMORI ◽  
Makoto NOGUCHI ◽  
Hisanori KINJO ◽  
Tetsuyo ODAJIMA ◽  
Gen-iku KOHAMA ◽  
...  




2007 ◽  
Vol 267 (1-4) ◽  
pp. 163-176 ◽  
Author(s):  
H. Adoukonou-Sagbadja ◽  
V. Schubert ◽  
A. Dansi ◽  
G. Jovtchev ◽  
A. Meister ◽  
...  


2009 ◽  
Vol 57 (6) ◽  
pp. 524 ◽  
Author(s):  
Milene Miranda Praça ◽  
Carlos Roberto Carvalho ◽  
Carolina Ribeiro Diniz Boaventura Novaes

Previous flow cytometry (FCM) analyses delivered nearly equal mean values of nuclear 2C DNA content for Eucalyptus grandis Hill ex Maiden and E. urophylla S. T. Blake (1.33 pg and 1.34 pg, respectively), whereas E. globulus Labill. presented distinct mean values (1.09, 1.13 and 1.40). These differences have been attributed to the different methodological approach, utilised plant cultivar and presence of intrinsic metabolic compounds that affect fluorochrome fluorescence. In the present study, a FCM and image cytometry (ICM) design, following international consensus criteria, were adopted to reassess the nuclear DNA contents of the above-mentioned Eucalyptus species. Statistical analyses revealed either similar or discrepant nuclear DNA contents, depending on the standard species used and whether FCM or ICM was employed. Our results demonstrated that 2C DNA values obtained by FCM and ICM were most uniform when Solanum lycopersicum was used as a standard. Moreover, the values obtained for E. grandis and E. urophylla were close, but differed as much as 24.63% in relation to previous data, and E. globulus proportionally varied up to 25%. New DNA content values are suggested for these eucalypt species.





1990 ◽  
Vol 10 (1) ◽  
pp. 29 ◽  
Author(s):  
Seinen Chow ◽  
William J. Dougherty ◽  
Paul A. Sandifer


1999 ◽  
Vol 218 (1-2) ◽  
pp. 13-21 ◽  
Author(s):  
Monica Boşcaiu ◽  
Oscar Vicente ◽  
Friedrich Ehrendorfer


2010 ◽  
Vol 2010 ◽  
pp. 1-7 ◽  
Author(s):  
B. J. M. Zonneveld

Genome size (C-value) was applied anew to investigate the relationships within the genus Hepatica (Ranunculaceae). More than 50 samples representing all species (except H. falconeri), from wild and cultivated material, were investigated. Species of Hepatica turn out to be diploid (), tetraploid ( ), and a possible pentaploid. The somatic nuclear DNA contents (2C-value), as measured by flow cytometry with propidium iodide, were shown to range from 33 to 80 pg. The Asiatic and American species, often considered subspecies of H. nobilis, could be clearly distinguished from European H. nobilis. DNA content confirmed the close relationships in the Asiatic species, and these are here considered as subspecies of H. asiatica. Parents for the allotetraploid species could be suggested based on their nuclear DNA content. Contrary to the increase in genome size suggested earlier for Hepatica, a significant (6%–14%) loss of nuclear DNA in the natural allopolyploids was found.



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