The sugar beet mitochondrial nad4 gene: an intron loss and its phylogenetic implication in the Caryophyllales

2002 ◽  
Vol 104 (2) ◽  
pp. 209-213 ◽  
Author(s):  
N. Itchoda ◽  
S. Nishizawa ◽  
H. Nagano ◽  
T. Kubo ◽  
T. Mikami
Keyword(s):  
Sugar Beet ◽  
Intron Loss ◽  
Phylogenetic Implication ◽  
Nad4 Gene

scholarly journals Is RNA editing implicated in group II intron survival in the angiosperm mitochondrial genome?

Genome ◽  
2012 ◽  
Vol 55 (1) ◽  
pp. 75-79 ◽  
Author(s):  
Hiroyo Kagami ◽  
Hironori Nagano ◽  
Yoshiya Takahashi ◽  
Tetsuo Mikami ◽  
Tomohiko Kubo
Keyword(s):  
Sugar Beet ◽  
Rna Editing ◽  
Group Ii Intron ◽  
Intron Loss ◽  
The Other ◽  
Mitochondrial Genomes ◽  
Intronic Sequence ◽  
Sister Clade ◽  
Portulaca Grandiflora ◽  
Group Ii

Introns may be considered as optional because they are removed from mRNA molecules, but introns are fairly preserved for unknown reasons. Previously, the mitochondrial rps3 gene of sugar beet ( Beta vulgaris L., Caryophyllales) was shown to represent a unique example of an intron loss. We have determined the distribution of the rps3 intron in 19 Caryophyllalean species. The intron was absent from the Amaranthaceae and the Achatocarpaceae. In the Caryophyllaceae, Dianthus japonicus rps3 was pseudogenized, but the intronic sequence was retained. Intact intron-bearing rps3 copies were cloned from Portulaca grandiflora and Myrtillocactus geometrizans , members of the sister clade of the Amaranthaceae–Achatocarpaceae–Caryophyllaceae clade. Most of the C-to-U RNA-editing sites in P. grandiflora and M. geometrizans rps3 transcripts were homologous in the two species, as well as in the sugar beet rps3, which, unlike the other 12 rps3 transcripts, lacks editing in the exonic regions around the intron. Provided that the loss of editing preceded the loss of rps3 intron, it appears conceivable that a requirement for editing could have prevented the loss of group II introns retained in angiosperm mitochondrial genomes. This interpretation is an alternative to the conventional one that views the loss of editing as a mere trace of RNA-mediated gene conversion.

Phylogenetic implication of the chloroplast rpoC1 intron loss in the Aizoaceae (Caryophyllales)

2007 ◽  
Vol 35 (6) ◽  
pp. 372-380 ◽  
Author(s):  
Joachim Thiede ◽  
Sabrina A. Schmidt ◽  
Barbara Rudolph
Keyword(s):  
Intron Loss ◽  
Phylogenetic Implication

Extraction and composition of pectins and hemicelluloses of cell walls of sugar beet roots grown in Morocco

2001 ◽  
Vol 36 (1) ◽  
pp. 35-46 ◽  
Author(s):  
Khalid Fares ◽  
C. M. G. C. Renard ◽  
Qamar R'Zina ◽  
Jean-Francois Thibault
Keyword(s):  
Sugar Beet ◽  
Cell Walls

Analyses of the stomach deposit that develops inMyzus persicaefeeding on sugar beet

1998 ◽  
Vol 23 (4) ◽  
pp. 347-353
Author(s):  
N. B. Kift ◽  
F. A. Mellon ◽  
A. M. Dewar ◽  
A. F. G. Dixon
Keyword(s):  
Sugar Beet

Protein synthesis in mitochondria purified from roots, leaves and flowers of sugar beet

1991 ◽  
Vol 83 (1) ◽  
pp. 7-16 ◽  
Author(s):  
Christina Lind ◽  
Christer Hallden ◽  
Ian M. Moller
Keyword(s):  
Protein Synthesis ◽  
Sugar Beet

Plant regeneration from protoplasts of sugar beet (Beta vulgaris)

1995 ◽  
Vol 94 (2) ◽  
pp. 342-350 ◽  
Author(s):  
Steffen Lenzner ◽  
Kurt Zoglauer ◽  
Otto Schieder
Keyword(s):  
Plant Regeneration ◽  
Sugar Beet ◽  
Beta Vulgaris
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