Cytoplasmic Male Sterility
Mostrando 1-12 de 75 artigos, teses e dissertações.
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1. Extracting female inbred lines from commercial sunflower hybrids.
The objective of this study was to obtain female inbred lines from sunflower (Helianthus annuus) hybrids. A methodology based on altering inbred lines carrying the fertility restorer gene (Rf) obtained from self pollinating hybrids into inbred lines with normal cytoplasm without the Rf gene was described. Further, derived male-sterile inbred lines were devel
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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2. Specific expression in reproductive tissues and fate of a mitochondrial sterility-associated protein in cytoplasmic male-sterile bean.
In common bean, cytoplasmic male sterility has been associated with a unique sequence found in the mitochondrial genome, designated pvs (for Phaseolus vulgaris sterility sequence). Within the pvs sequence, two open reading frames are encoded, ORF98 and ORF239. We have raised rabbit polyclonal antibodies against Pvs-ORF239 to evaluate the role of this putativ
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3. A pentatricopeptide repeat-containing gene restores fertility to cytoplasmic male-sterile plants
Known in over 150 species, cytoplasmic male sterility is encoded by aberrant mitochondrial genes that prevent pollen development. The RNA- or protein-level expression of most of the mitochondrial genes encoding cytoplasmic male sterility is altered in the presence of one or more nuclear genes called restorers of fertility that suppress the male-sterile pheno
National Academy of Sciences.
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4. Genetics of Male Sterility in Gynodioecious Plantago Coronopus. I. Cytoplasmic Variation
Inheritance of male sterility was studied in the gynodioecious species Plantago coronopus using five plants and their descendants from an area of ~50 m(2) in each of six locations. The crosses were planned to test for cytoplasmic inheritance of male sterility. In four locations significant differences between reciprocal crosses were observed. The progenies o
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5. Tissue-Specific Protein Expression in Plant Mitochondria.
Although the physiological role of plant mitochondria is thought to vary in different tissues at progressive stages of development, there has been little documentation that the complement of mitochondrial proteins is altered in different plant organs. Because the phenomenon of cytoplasmic male sterility suggests an unusual function for mitochondria in floral
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6. Identification of a mitochondrial protein associated with cytoplasmic male sterility in petunia.
The petunia fused gene (pcf), which is associated with cytoplasmic male sterility (CMS), is composed of sequences derived from atp9, coxII, and an unidentified reading frame termed urfS. To determine whether the pcf gene is expressed at the protein level, we produced antibodies to synthetic peptides specified by the coxII and urfS portions of the pcf gene. A
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7. Genetics of Male Sterility in Gynodioecious Plantago Coronopus. II. Nuclear Genetic Variation
Inheritance of male sterility was studied in the gynodioecious species Plantago coronopus using five plants and their descendants from an area of ~50 m(2) from each of four locations. In each location, crosses between these five plants yielded the entire array of possible sex phenotypes. Both nuclear and cytoplasmic genes were involved. Emphasis is placed on
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8. Cell type-specific loss of atp6 RNA editing in cytoplasmic male sterile Sorghum bicolor
RNA editing and cytoplasmic male sterility are two important phenomena in higher plant mitochondria. To determine whether correlations might exist between the two, RNA editing in different tissues of Sorghum bicolor was compared employing reverse transcription–PCR and subsequent sequence analysis. In etiolated shoots, RNA editing of transcripts of plant mi
The National Academy of Sciences of the USA.
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9. ASEXUAL TRANSMISSION OF CYTOPLASMIC MALE STERILITY*
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10. Premature dissolution of the microsporocyte callose wall causes male sterility in transgenic tobacco.
Male sterility in a petunia cytoplasmic male sterile line has been attributed to the early appearance of active callase, a beta-1,3-glucanase, in the anther locule. This leads to premature dissolution of the callose walls surrounding the microsporogenous cells. We have mimicked this aspect of the petunia line in transgenic tobacco by engineering the secretio
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11. Evolutionary Pathways of Cytoplasmic Male Sterility in Solanum
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12. Thoughts on Cytoplasmic Male Sterility in cms-T Maize.