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A variant mitochondrial DNA arrangement specific to Petunia stable sterile somatic hybrids
Year:
1985
Source of publication :
Plant Molecular Biology
Authors :
Izhar, Shamay
;
.
Volume :
4
Co-Authors:
Boeshore, M.L., Department of Biology, University of Virginia, Charlottesville, 22901, VA, United States
Hanson, M.R., Department of Biology, University of Virginia, Charlottesville, 22901, VA, United States
Izhar, S., Division of Plant Genetics and Breeding, Agriculture Research Organization, The Volcani Center, Bet Dagan, 52258, Israel
Facilitators :
From page:
125
To page:
132
(
Total pages:
8
)
Abstract:
We have characterized two related regions of two Petunia mitochondrial genomes in order to understand how plant mt genomes from a cytoplasmic male sterile (cms) line and a fertile line diverge from one another. Restriction maps of these regions indicate that a sequence arrangement shared by the two genomes adjoins sequences which are not shared at the corresponding locations in the two genomes. A point where the mt genomes from the cms line and the fertile lines diverge from each other was identified and mapped. Previously we had observed that somatic hybrids constructed from the cms and the fertile line contained mt genomes carrying new combinations of parental mtDNA restriction fragments (3). Using the restriction maps of the two related mtDNA regions, a mtDNA arrangement unique to the cms parent could be shown to be present in all 17 stable sterile somatic hybrids tested and none of the 24 stable fertile somatic hybrids tested. This data does not exclude the possibility that additional, as yet unidentified, mtDNA arrangements unique to the cms parent might also be found exclusively in sterile somatic hybrids. Whether or not the sterile parental mtDNA arrangement reported here is functionally related to cms, it apparently segregates with cms in somatic hybrids. © 1985 Martinus Nijhoff/Dr W. Junk Publishers.
Note:
Related Files :
Cytoplasmic male sterility
mitochondrial DNA
mitochondrial genome divergence
Petunia somatic hybrids
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Related Content
More details
DOI :
10.1007/BF02418759
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
30810
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:57
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Scientific Publication
A variant mitochondrial DNA arrangement specific to Petunia stable sterile somatic hybrids
4
Boeshore, M.L., Department of Biology, University of Virginia, Charlottesville, 22901, VA, United States
Hanson, M.R., Department of Biology, University of Virginia, Charlottesville, 22901, VA, United States
Izhar, S., Division of Plant Genetics and Breeding, Agriculture Research Organization, The Volcani Center, Bet Dagan, 52258, Israel
A variant mitochondrial DNA arrangement specific to Petunia stable sterile somatic hybrids
We have characterized two related regions of two Petunia mitochondrial genomes in order to understand how plant mt genomes from a cytoplasmic male sterile (cms) line and a fertile line diverge from one another. Restriction maps of these regions indicate that a sequence arrangement shared by the two genomes adjoins sequences which are not shared at the corresponding locations in the two genomes. A point where the mt genomes from the cms line and the fertile lines diverge from each other was identified and mapped. Previously we had observed that somatic hybrids constructed from the cms and the fertile line contained mt genomes carrying new combinations of parental mtDNA restriction fragments (3). Using the restriction maps of the two related mtDNA regions, a mtDNA arrangement unique to the cms parent could be shown to be present in all 17 stable sterile somatic hybrids tested and none of the 24 stable fertile somatic hybrids tested. This data does not exclude the possibility that additional, as yet unidentified, mtDNA arrangements unique to the cms parent might also be found exclusively in sterile somatic hybrids. Whether or not the sterile parental mtDNA arrangement reported here is functionally related to cms, it apparently segregates with cms in somatic hybrids. © 1985 Martinus Nijhoff/Dr W. Junk Publishers.
Scientific Publication
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