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Restorer Genes For Different Forms Of Brassica Cytoplasmic Male ... - Pnas
Get Restorer Genes For Different Forms Of Brassica Cytoplasmic Male ... - Pnas
E nuclear locus that modifies transcripts of several mitochondrial genes XIU-QING LI* , MARTINE JEAN* , BENOIT S. L ANDRY , AND GREGORY G. BROWN* *Department of Biology, McGill University, Montreal, Quebec H3A 1B1, Canada; and DNA LandMarks Inc., P.O. Box 6, St. Jean-sur-Richelieu, Quebec J3B 6Z1, Canada Communicated by C. S. Levings III, North Carolina State University, Raleigh, NC, June 24, 1998 (received for review October 14, 1997) CMS: T, S, and C. Restoration of cms-T require.
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Extranuclear inheritance or cytoplasmic inheritance is the transmission of genes that occur outside the nucleus. It is found in most eukaryotes and is commonly known to occur in cytoplasmic organelles such as mitochondria and chloroplasts or from cellular parasites like viruses or bacteria.
Fertility restorer (Rf) genes block or compensate for specific mitochondrial dysfunctions that are phenotypically expressed during pollen development. Different Rf genes have been identified and mapped on different chromosomes along with their molecular mechanisms in restoring the fertility.
Extranuclear inheritance or cytoplasmic inheritance is the transmission of genes that occur outside the nucleus. It is found in most eukaryotes and is commonly known to occur in cytoplasmic organelles such as mitochondria and chloroplasts or from cellular parasites like viruses or bacteria.
2.1 Genetics and mechanism of cytoplasmic male sterility (CMS) Sterility in CMS is controlled by the interaction of genes in the cytoplasm and the nucleus. The sterility factor S is located in the mitochondrial DNA while the rf (restorer of fertility) allele is located in the nucleus. Genetics and Breeding System for Cytoplasmic and Genetic Male ... intechopen.com https://.intechopen.com › chapters intechopen.com https://.intechopen.com › chapters
It is shown that male sterility in 337S was controlled by a single recessive gene, temporarily designated as wptms3. Bulked segregant analysis (BSA) coupled with simple sequence repeat (SSR) markers was applied to map the sterile gene using one mapping population.
Fertility restorer (Rf) genes block or compensate for specific mitochondrial dysfunctions that are phenotypically expressed during pollen development. Different Rf genes have been identified and mapped on different chromosomes along with their molecular mechanisms in restoring the fertility.
Fertility restorer (Rf) genes block or compensate for specific mitochondrial dysfunctions that are phenotypically expressed during pollen development. Different Rf genes have been identified and mapped on different chromosomes along with their molecular mechanisms in restoring the fertility.
2.1 Genetics and mechanism of cytoplasmic male sterility (CMS) Sterility in CMS is controlled by the interaction of genes in the cytoplasm and the nucleus. The sterility factor S is located in the mitochondrial DNA while the rf (restorer of fertility) allele is located in the nucleus. Genetics and Breeding System for Cytoplasmic and Genetic Male ... intechopen.com https://.intechopen.com › chapters intechopen.com https://.intechopen.com › chapters
It is shown that male sterility in 337S was controlled by a single recessive gene, temporarily designated as wptms3. Bulked segregant analysis (BSA) coupled with simple sequence repeat (SSR) markers was applied to map the sterile gene using one mapping population.
Cytoplasmic male sterility, as the name indicates, is under extranuclear genetic control (under control of the mitochondrial or plastid genomes). It shows non-Mendelian inheritance, with male sterility inherited maternally. In general, there are two types of cytoplasm: N (normal) and aberrant S (sterile) cytoplasms.
Fertility restorer (Rf) genes block or compensate for specific mitochondrial dysfunctions that are phenotypically expressed during pollen development. Different Rf genes have been identified and mapped on different chromosomes along with their molecular mechanisms in restoring the fertility.
CMS is caused by the interaction between nuclear and mitochondrial genomes. A product of a CMS-causing gene encoded by the mitochondrial genome affects mitochondrial function and the regulation of nuclear genes, leading to male sterility.
The T cytoplasm of maize serves as a model for the nuclear restoration of cytoplasmic male sterility. The rf2 gene, one of two nuclear genes required for fertility restoration in male-sterile T-cytoplasm (cmsT) maize, was cloned. The rf2 nuclear restorer gene of male-sterile T-cytoplasm maize nih.gov https://pubmed.ncbi.nlm.nih.gov › ... nih.gov https://pubmed.ncbi.nlm.nih.gov › ...
Cytoplasmic male sterility, as the name indicates, is under extranuclear genetic control (under control of the mitochondrial or plastid genomes). It shows non-Mendelian inheritance, with male sterility inherited maternally. In general, there are two types of cytoplasm: N (normal) and aberrant S (sterile) cytoplasms.
The nuclear-encoded genes known as fertility restorer genes (Rf) leading to pollen fertility can be restored in some CMS lines. The hybridization of a CMS line, a maintainer line, and a restorer line carrying the restorer gene is useful in the development of hybrid varieties. Development of New Restorer Lines Carrying Some Restoring Fertility ... nih.gov https://.ncbi.nlm.nih.gov › articles › PMC8952259 nih.gov https://.ncbi.nlm.nih.gov › articles › PMC8952259
CMS is caused by the interaction between nuclear and mitochondrial genomes. A product of a CMS-causing gene encoded by the mitochondrial genome affects mitochondrial function and the regulation of nuclear genes, leading to male sterility.
In contrast, the RESTORER OF FERTILITY gene (Rf gene) in the nuclear genome suppresses the expression of the CMS-causing gene and restores male fertility. Molecular basis of cytoplasmic male sterility and fertility restoration in rice nih.gov https://.ncbi.nlm.nih.gov › articles › PMC8562580 nih.gov https://.ncbi.nlm.nih.gov › articles › PMC8562580
The T cytoplasm of maize serves as a model for the nuclear restoration of cytoplasmic male sterility. The rf2 gene, one of two nuclear genes required for fertility restoration in male-sterile T-cytoplasm (cmsT) maize, was cloned. The rf2 nuclear restorer gene of male-sterile T-cytoplasm maize nih.gov https://pubmed.ncbi.nlm.nih.gov › ... nih.gov https://pubmed.ncbi.nlm.nih.gov › ...
Cytoplasmic male sterility (CMS) is another trait applicable to F1 seed production, which is stable and applicable to all Brassicaceae crops. CMS is a maternally inherited trait encoded by a gene located in the mitochondria.
The nuclear-encoded genes known as fertility restorer genes (Rf) leading to pollen fertility can be restored in some CMS lines. The hybridization of a CMS line, a maintainer line, and a restorer line carrying the restorer gene is useful in the development of hybrid varieties. Development of New Restorer Lines Carrying Some Restoring Fertility ... nih.gov https://.ncbi.nlm.nih.gov › articles › PMC8952259 nih.gov https://.ncbi.nlm.nih.gov › articles › PMC8952259
What is the Difference Between Genetic Male Sterility and Cytoplasmic Male Sterility? Genetic male sterility occurs due to genome mutations, while cytoplasmic male sterility occurs due to cytoplasmic and nuclear factors. Thus, this is the key difference between genetic male sterility and cytoplasmic male sterility.
In contrast, the RESTORER OF FERTILITY gene (Rf gene) in the nuclear genome suppresses the expression of the CMS-causing gene and restores male fertility. Molecular basis of cytoplasmic male sterility and fertility restoration in rice nih.gov https://.ncbi.nlm.nih.gov › articles › PMC8562580 nih.gov https://.ncbi.nlm.nih.gov › articles › PMC8562580
Cytoplasmic male sterility (CMS) is another trait applicable to F1 seed production, which is stable and applicable to all Brassicaceae crops. CMS is a maternally inherited trait encoded by a gene located in the mitochondria.
What is the Difference Between Genetic Male Sterility and Cytoplasmic Male Sterility? Genetic male sterility occurs due to genome mutations, while cytoplasmic male sterility occurs due to cytoplasmic and nuclear factors. Thus, this is the key difference between genetic male sterility and cytoplasmic male sterility.
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