Results 131 to 140 of about 1,007 (182)
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American Naturalist, 2003
It is well known that some species produce offspring carrying only female chromosomes by processes such as apomixis and parthenogenesis (generically termed "gynogenesis"). There are also several cases of natural reproduction by androgenesis in which diploid offspring carry nuclear chromosomes from only the male parent.
Mark J Mckone
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It is well known that some species produce offspring carrying only female chromosomes by processes such as apomixis and parthenogenesis (generically termed "gynogenesis"). There are also several cases of natural reproduction by androgenesis in which diploid offspring carry nuclear chromosomes from only the male parent.
Mark J Mckone
exaly +3 more sources
Failure of interspecies androgenesis in salmonids
Journal of Fish Biology, 2002Androgenetic development of salmonid embryos was induced in recipient oocytes from the same or other species (intra‐ or interspecies androgenesis). Parameters for induced androgenesis were investigated in brown trout Salmo trutta and brook trout Salvelinus fontinalis.
Stefan Dobosz
exaly +3 more sources
Experimental androgenesis in plants—A review
Proceedings of the Indian Academy of Sciences - Section A Part 3 Mathematical Sciences, 1977This presents the review of seventynine species and varieties of angiosperms in which androgenesis has been induced. The culture practices, probable factors (physiological, bio-chemical and cytogenetical) involved and the applied aspects of andromorphogenesis are analysed.
B C Acharya, M V Ramji
exaly +2 more sources
Inheritance of androgenesis response in pepper
Molecular Biology Reports, 2022Anther culture has become an important part of pepper breeding. Response to haploidy via androgenesis is highly genotype-specific. However, studies on the inheritance of response to anther culture are lacking. Therefore, the study aimed to determine the inheritance of androgenesis.The plant material included crosses involving Capsicum annuum L. (253 A,
Nihal Denli +4 more
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2001
A new life cycle of angiosperm plants starts in the ovule after fertilization of the egg cell and the central cell by the two sperm cells of a pollen grain. The zygote, as the result of egg-sperm fusion, starts cell division and organogenesis to form the embryo, which is the generative component of a seed.
J. B. M. Custers +5 more
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A new life cycle of angiosperm plants starts in the ovule after fertilization of the egg cell and the central cell by the two sperm cells of a pollen grain. The zygote, as the result of egg-sperm fusion, starts cell division and organogenesis to form the embryo, which is the generative component of a seed.
J. B. M. Custers +5 more
openaire +1 more source
2016
The Solanaceae is one of the most important families for global agriculture. Among the different solanaceous species, tobacco (Nicotiana tabacum), potato (Solanum tuberosum), tomato (Solanum lycopersicum), eggplant (Solanum melongena), and pepper (Capsicum annuum) are five crops of outstanding importance worldwide.
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The Solanaceae is one of the most important families for global agriculture. Among the different solanaceous species, tobacco (Nicotiana tabacum), potato (Solanum tuberosum), tomato (Solanum lycopersicum), eggplant (Solanum melongena), and pepper (Capsicum annuum) are five crops of outstanding importance worldwide.
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The Botanical Review, 2010
Androgenesis can be defined as the set of biological processes leading to an individual genetically coming exclusively from a male nucleus. Androgenesis was traditionally considered as the spontaneous, in vivo development of a male-derived haploid embryo from a fertilized egg where the female nucleus is eliminated.
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Androgenesis can be defined as the set of biological processes leading to an individual genetically coming exclusively from a male nucleus. Androgenesis was traditionally considered as the spontaneous, in vivo development of a male-derived haploid embryo from a fertilized egg where the female nucleus is eliminated.
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Androgenesis Conditioned by a Mutation in Maize
Science, 1969A maize embryo having the nuclear constitution of a reduced gametophyte cell is produced in 3 percent of the embryo sacs of inbred strain Wisconsin-23 that carry the mutant indeterminate gametophyte ( ig ). The nucleus of most monoploid sporophytes so derived is paternal.
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Zeitschrift für Pflanzenphysiologie, 1982
Summary The techniques of androgenesis adapted to pearl millet, Pennisetum typhoides, described here have led to the obtention of embryoids and calluses from all the genotypes used. Plants have been regenerated from 23 D2B1 and from F1 hybrid Massue ♀ × Liqui ♂ microspore cultures.
Duc Bui Dang Ha, Jean Pernes
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Summary The techniques of androgenesis adapted to pearl millet, Pennisetum typhoides, described here have led to the obtention of embryoids and calluses from all the genotypes used. Plants have been regenerated from 23 D2B1 and from F1 hybrid Massue ♀ × Liqui ♂ microspore cultures.
Duc Bui Dang Ha, Jean Pernes
openaire +1 more source
Plant Cell Reports, 1998
The influence on androgenesis of donor plant growth conditions, anther size and developmental stage of the microspore, medium composition and different anther treatments prior to culture was investigated in L. esculentum Mill. cv Roma and its hybrids. Growth conditions of donor plants affected the induction of tomato androgenesis. Anthers isolated from
L A, Shtereva +4 more
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The influence on androgenesis of donor plant growth conditions, anther size and developmental stage of the microspore, medium composition and different anther treatments prior to culture was investigated in L. esculentum Mill. cv Roma and its hybrids. Growth conditions of donor plants affected the induction of tomato androgenesis. Anthers isolated from
L A, Shtereva +4 more
openaire +2 more sources