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infertility/schaumkressen
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Seite 1 von 315 Ergebnisse
Cytoplasmic male sterility contributes to hybrid incompatibility between subspecies of Arabidopsis lyrata.
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In crosses between evolutionarily diverged populations, genomic incompatibilities may result in sterile hybrids, indicating evolution of reproductive isolation. In several plant families, crosses within a population can also lead to male sterile progeny because of conflict between the maternally and
[Advanced biological studies on the cytoplasmic male sterility and its fertility restoration in plants].
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It was reviewed here that the major advances of biological research on the cytoplasmic male sterility (cms) and its fertility restoration in plants in the past decade. It focused on the identification of the cms- associated regions in the plant mitochondrial genome and their expressing profile, the
Disruption of the Arabidopsis RAD50 gene leads to plant sterility and MMS sensitivity.
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The Rad50 protein is involved in the cellular response to DNA-double strand breaks (DSBs), including the detection of damage, activation of cell-cycle checkpoints, and DSB repair via recombination. It is essential for meiosis in yeast, is involved in telomere maintenance, and is essential for
A defect in synapsis causes male sterility in a T-DNA-tagged Arabidopsis thaliana mutant.
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Fluorescence microscopy was used to study meiosis in microsporocytes from wild-type Arabidopsis thaliana and a T-DNA-tagged meiotic mutant. Techniques for visualizing chromosomes and beta-tubulin in other plant species were evaluated and modified in order to develop a method for analyzing meiosis in
TinII intron, an enhancer to affect the function of the cytoplasmic male sterility related gene T in Brassica juncea.
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The T gene, which was cloned from the mitochondria of tumorous stem mustard (Brassica juncea var. tumida), is a cytoplasmic male sterility (CMS)-related gene that can produce two transcripts, T1170 and T1243. The latter is transcribed with the uncleaved intron TinII. In our previous study,
Mapping and Identifying a Candidate Gene (Bnmfs) for Female-Male Sterility through Whole-Genome Resequencing and RNA-Seq in Rapeseed (Brassica napus L.).
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In oilseed crops, carpel and stamen development play vital roles in pollination and rapeseed yield, but the genetic mechanisms underlying carpel and stamen development remain unclear. Herein, a male- and female-sterile mutant was obtained in offspring of a (Brassica napus cv. Qingyou 14) × (Qingyou
Silencing of meiosis-critical genes for engineering male sterility in plants.
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The potential for pollen-mediated transgene flow into wild or closely related species has provoked unease in terms of transgenic modification of agricultural plant species. One approach to remedy this situation in species whose seeds and fruits are not of particular value is to engineer male
A lineage-specific paralogue of Oma1 evolved into a gene family from which a suppressor of male sterility-inducing mitochondria emerged in plants
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Cytoplasmic male sterility in plants is caused by male sterility-inducing mitochondria, which have emerged frequently during plant evolution. Nuclear Restorer-of-fertility (Rf) genes can suppress their cognate male sterility-inducing mitochondria. Whereas many Rfs encode a class of RNA binding
Tapetal Expression of BnaC.MAGL8.a Causes Male Sterility in Arabidopsis.
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Monoacylglycerol lipase (MAGL) hydrolyzes monoacylglycerol, producing free fatty acid and glycerol. Although this enzyme has been shown to play important roles in mammal, its potential function in plants remains poorly understood. In a survey of the MAGL genes in Brassica napus, we
Morphological and molecular changes on cytoplasmic male sterility (CMS) introgression in Asiatic carrot (Daucus carota L.).
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MAIN CONCLUSION: 'Petaloid' cytoplasmic male sterility is commonly used as a stable genetic mechanism in carrot hybrid breeding. Its introgression in tropical carrot showed morphometric changes and molecular markers were identified for detection at early stage. Cytoplasmic male sterility (CMS) is
Comparative sequence and expression analysis of tapetum specific male sterility related genes in Medicago truncatula.
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Heterosis, or enhancement through outbreeding, is one of the most promising approaches for increasing crop yield. Male sterility (MS), which promotes heterosis, has been widely applied in hybrid crop production. Medicago truncatula is a model legume species and is closely related to M. sativa, an
[Identification and analysis of the specific molecular marker associated with fertile maintenance of cytoplasmic male sterility cauliflower].
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Analysis of RAPD (Randomly Amplification Polymorphic DNA) was performed between cytoplasmic male sterility line and its maintainer line of cauliflower. Totally 2160 detectable bands were obtained by RAPD using 406 10-bp random primers. Averagely, 5 to 10 bands were produced per primer. Among all the
A novel herbicide-inducible male sterility system.
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BACKGROUND
Heterosis is a phenomenon that first-generation offspring perform better than their parents. Conventional breeding methods have their shortcomings. It would be optimal to construct inducible male sterile plants.
RESULTS
We developed a novel system for creating male sterile transgenic
Linkage mapping of a dominant male sterility gene Ms-cd1 in Brassica oleracea.
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The dominant male sterility gene Ms-cd1 (c, cabbage; d, dominant) was identified as a spontaneous mutation in the spring cabbage line 79-399-3. The Ms-cd1 gene is successfully applied in hybrid seed production of several Brassica oleracea cultivars in China. Amplified fragment length polymorphism
[Isolation and identification of specific sequences correlated to cytoplasmic male sterility and fertile maintenance in cauliflower (Brassica oleracea var. botrytis)].
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Analysis of ISSR (Inter-Simple Sequence Repeat) and DDRT-PCR (Differential Display Reverse Transcriptase Polymerase Chain Reaction) was performed between cytoplasmic male sterility cauliflower ogura-A and its corresponding maintainer line ogura-B. Totally, 306 detectable bands were obtained by ISSR
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