androgenesis


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Related to androgenesis: angiogenesis, gynogenesis
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  • noun

Synonyms for androgenesis

male parthenogenesis in which the embryo contains only paternal chromosomes due to the failure of the egg nucleus to participate in fertilization

References in periodicals archive ?
et al., Programmed cell death during the transition from multicellular structures to globular embryos in barley androgenesis. Planta, 2005; 221(4), pp.459-470.
Many factors influence androgenesis including plant genotype physiological state of the parent plant microspore development stage temperature pretreatment of flower buds and the culture medium (Bajaj 1990).
Apparently, haploid and double haploid shoot production occur as a result of organogenesis from an initial proliferation of callus and not via androgenesis [7].
Role of cysteine in enhancing androgenesis and regeneration of indica rice (Oryza sativa L.).
The influence of several factors on the androgenesis in carrot.J.Appl.Genet,46:265-269(2005).
La ginogenesis y la androgenesis favorece la obtencion de individuos homocigoticos en la primera generacion y lineas clonales puras en la segunda, por tanto, se disminuye el numero de generaciones necesarias para obtener una linea pura y favorece la obtencion de lineas homocigoticas diferenciandose con la hibridacion tradicional.
Study of Androgenesis and Spontaneous Chromosome Doubling in Barley (Hordeum vulgare L.) genotypes using Isolated Microspore Culture.
In a 1994 study of mature rats treated with sodium fluoride, Narayana and Chinoy found that fluoride interfered with androgenesis and damaged the testes by inhibiting the action of testosterone.
On the other hand, haploidy or doubled haploidy can also be achieved from the male gametophyte or its precursors through a pathway known as androgenesis. According to its initial definition, the concept "androgenesis" was invariably linked to "fertilization." It was originally coined to define a route involving sexual reproduction, egg fertilization, and subsequent inactivation of the female nucleus, so that a male-derived, haploid embryo is formed within the embryo sac (Rieger et al., 1968).
Effects of leaf extract of Stephania hernandifolia on testicular gametogenesis and androgenesis in albino rats: a dose-dependent response study.
Although the hybrids between Lolium and Festuca species are usually male sterile with low female fertility (Jauhar, 1993), the androgenesis technique, which produces diploid offspring that carry nuclear chromosomes from only the male parent, was used to select and stabilize useful Lolium-Festuca gene combinations (Lesniewska et al., 2001; Thomas et al., 2003).
La glandula sebacea es exquisitamente sensible a pequenas elevaciones hormonales y estas dependen de la androgenesis (figura 1).1Los androgenos se producen en el estroma de los ovarios y en las glandulas suprarrenales, especialmente en la zona reticular a traves del metabolismo del colesterol (figura 2); esta produccion intraglandular esta determinada por el eje hipotalamo-hipofisiario, y corresponde a un 50% de la produccion total.