male sterility


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male sterility

[māl stə′ril·əd·ē]
(physiology)
The condition in which male gametes are absent, deficient in number, or nonfunctional.
References in periodicals archive ?
Three cytoplasmic male sterile (or A) lines (IR-58025A, IR-68897A and Pusa 6A) having WA cytoplasm as a source of male sterility as well as their respective maintainer (or B) lines were used as female parents in crossing programme.
Study of heterosis and combining ability by utilizing cytoplasmic genetic male sterility and fertility restoration system in rice.
The immotile cilia syndrome: A congenital ciliary abnormality as an etiologic factor in chronic airway infection and male sterility. N Engl J Med.
"The use of engineered male sterility would be especially useful to eliminate pollen allergens and to produce environmentally friendly transgenic plants carrying new traits by preventing gene flow between the genetically modified ornamentals and related plant species," they added.
Neither male nor female in function, neuters occur when the alleles containing male sterility and female sterility combine.
Pickard-Cambridge 1872: 1) future inseminating opportunities for males who have broken emboli (male sterility hypothesis) and 2) the risk of sperm competition (mating plug hypothesis).
The most important qualitative genes in the edible alliums are those that cause male sterility. In onion, male sterility was first exploited by Jones and Clarke (1943) using a male sterile specimen of cultivar Italian Red, which they found in breeding plots at Davis, California, in 1925.
They describe the emerging field of plant mitochondrial dynamics; the dynamic mitochondrial genome, including expression and control; the sequence and structural determinants for protein import; the interplay between nuclear and mitochondrial gene expression; electron transport; metabolism; cytoplasmic male sterility; and plant programmed cell death.
Cytoplasmic male sterility for sorghum seed production.
This will be used to access the relative rate of change in the cytoplasmic male sterility (CMS) system, which is due to recombinations in the mitochondrial genome.
Some of the concerns about the cytoplasmic male sterility in the NORCAL seed and patent have historical foundations.
Crops engineered with "suicide" genes for male sterility, promoted as a means of preventing the spread of transgenes, actually spread both male sterility and herbicide tolerance traits via pollen.