infertility/mais

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Endogenous tassel-specific small RNAs-mediated RNA interference enables a novel glyphosate-inducible male sterility system for commercial production of hybrid seed in Zea mays L.

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Hybrid crops produce higher yields than their inbred parents due to heterosis. For high purity of hybrid seeds, it is critical to eliminate self-pollination. Manual or mechanical removal of male parts (such as detasseling in maize) is labor-intensive, fuel and time-consuming, and can cause physical

Possible mitochondrial involvement in mechanism of cytoplasmic male sterility in maize (Zea mays L.).

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The mechanism of cytoplasmic male sterility was investigated in maize by isolating mitochondria from seedlings and various anther stages and analyzing cytochrome oxidase and succinic dehydrogenase biochemically and electrophoretically. Sterile anthers exhibited a lack of biochemical activity and

Testing for sterility of corn oil. I. Dispersion of spores in corn oil and in saline.

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CYTOPLASMIC INHERITANCE OF MALE STERILITY IN ZEA MAYS.

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Testing for sterility of corn oil. III. The use of non-ionic surfactants.

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Testing for sterility of corn oil. II. The use of filters and filtration procedures.

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Selection and orientation of adjacent genes influences DAM-mediated male sterility in transformed maize.

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Anther-targeted expression of E. coli DNA (Adenosine-N6-)-Methyltransferase (DAM) in maize was tested as a means to produce male-sterile plants. A high frequency of male-sterile plants with reduced anther size was observed when DAM was regulated by the maize anther-specific promoter 5126 (5126:DAM)

Primary and Secondary Markers of Doxorubicin-Induced Female Infertility and the Alleviative Properties of Quercetin and Vitamin E in a Rat Model

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The incidence of cancer has recently risen among the women at the reproductive age. Therefore, exposure to doxorubicin (DOX) chemotherapy has become a cause of reproductive toxicity followed by secondary destructive effects. The present study aimed to evaluate the effects of quercetin (QCT) and

Plant mitochondrial mutations and male sterility.

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A characteristic of CMS mutations in plants, in contrast to the single base changes in human mitochondrial mutants (49, 140), is the presence of chimeric genes or chimeric loci; different open reading frames are joined together, or placed in proximal locations and cotranscribed with standard

T-URF 13 Protein from Mitochondria of Texas Male-Sterile Maize (Zea mays L.) : Its Purification and Submitochondrial Localization, and Immunogold Labeling in Anther Tapetum during Microsporogenesis.

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The protein T-URF13 (URF13) is specific to mitochondria of maize (Zea mays L.) with Texas (T) male-sterile cytoplasm and has been implicated in causing male sterility and susceptibility to T-cytoplasm-specific fungal diseases. T-URF13 was purified from isolated mitochondria from maize (line B73)

Haploid plants carrying a sodium azide-induced mutation (fdr1) produce fertile pollen grains due to first division restitution (FDR) in maize (Zea mays L.).

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CONCLUSIONS We induced a fdr1 mutation in maize which makes haploid plants male fertile due to first division restitution; the optimum sodium azide treatment on maize kernels has been identified. Sodium azide mutagenesis experiments were performed on haploid and diploid maize plants. Kernels with

MYO, a Candidate Gene for Haploid Induction in Maize Causes Male Sterility

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Doubled haploid technology is highly successful in maize breeding programs and is contingent on the ability of maize inducers to efficiently produce haploids. Knowledge of the genes involved in haploid induction is important for not only developing better maize inducers, but also to create inducers

Analysis of differentially expressed genes in genic male sterility cotton (Gossypium hirsutum L.) using cDNA-AFLP.

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cDNA amplified fragment length polymorphism (cDNA-AFLP) analysis was used to investigate the differentially expressed genes between sterile and fertile plants of ms5ms6 double-recessive genic male sterility (GMS) two-type line cotton (Gossypium hirsutum L.) at different stages, i.e., sporogenous

Reversible male sterility: a novel system for the production of hybrid corn.

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Hybrid corn seed is traditionally produced using either mechanical/hand detasseling or cytoplasmic male sterility, or a combination of both. In recent years, the development of transgenic systems to produce hybrid seed in several crops has attracted much attention. Here we describe a transgenic

A new meiotic abnormality in Zea mays: multiple spindles associated with abnormal cytokinesis in both divisions.

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Abstract: We report here a new meiotic abnormality recorded in one plant of an inbred line of Zea mays. After an apparently normal prophase I, chromosomes did not congregate in a single metaphase plate. Bivalents remained scattered in the cytoplasm, giving rise to several spindles. Despite the

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