Chromosome numbers, karyotypes and nuclear DNA contents from perennial polyploid groups ofCerastium (Caryophyllaceae)

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

2001 ◽  
Vol 126 (2) ◽  
pp. 195-199 ◽  
Author(s):  
Sandy Lin ◽  
Hsiao-Ching Lee ◽  
Wen-Huei Chen ◽  
Chi-Chang Chen ◽  
Yen-Yu Kao ◽  
...  

Nuclear DNA contents were estimated by flow cytometry in 18 Phalaenopsis Blume species and Doritis pulcherrima Lindl. DNA amounts differed 6.07-fold, from 2.74 pg/diploid nuclear DNA content (2C) in P. sanderiana Rchb.f. to 16.61 pg/2C in P. parishii Rchb.f. Nuclear DNA contents of P. aphrodite Rchb.f. clones, W01-38 (2n = 2x = 38), W01-41 (2n = 3x = 57), and W01-22 (2n = 4x = 76), displayed a linear relationship with their chromosome numbers, indicating the accuracy of flow cytometry. Our results also suggest that the 2C-values of the Phalaenopsis sp. correlate with their chromosome sizes. The comparative analyses of DNA contents may provide information to molecular geneticists and systematists for genome analysis in Phalaenopsis. Endoreduplication was found in various tissues of P. equestris at different levels. The highest degree of endoreduplication in P. equestris was detected in leaves.



2001 ◽  
Vol 36 (3) ◽  
pp. 227-232 ◽  
Author(s):  
Olga Muravenko ◽  
Irina Selyakh ◽  
Neonila Kononenko ◽  
Igor Stadnichuk


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 ◽  
...  




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


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


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