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Reproductive development in apomictic populations of Arabis holboellii (Brassicaceae)
Megasporogenesis, megagametogenesis and seed formation were analyzed cytologically in populations of Arabis holboellii originating from North America (Colorado) and Greenland. The Colorado populationExpand
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Production of somatic hybrids between frost-tolerant Solanum commersonii and S. tuberosum: characterization of hybrid plants
Somatic fusion of mesophyll protoplasts was used to produce hybrids between the frost-tolerant species Solanum commersonii (2n=2x=24) and dihaploid S. tuberosum (2n=2x=24). This is a sexuallyExpand
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Early occurence of genetic instability in protoplast cultures of potato
Abstract Cytological and DNA cytophotometric analyses were carried out to follow in a temporal sequence, the nuclear events occurring during growth and differentiation of protoplasts derived fromExpand
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Microprotoplast fusion technique : a new tool for gene transfer between sexually-incongruent plant species
Various aspects of a microprotoplast fusion technique and the strategies followed for intergeneric partial genome transfer (one or a few chromosomes) and alien genes from sexually-incongruent donorExpand
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Microprotoplast fusion technique: a new tool for gene transfer between sexually-incongruent plant species
SummaryVarious aspects of a microprotoplast fusion technique and the strategies followed for intergeneric partial genome transfer (one or a few chromosomes) and alien genes from sexually-incongruentExpand
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Apomixis for crop improvement
SummaryApomixis is a genetically controlled reproductive process by which embryos and seeds develop in the ovule without female meiosis and egg cell fertilization. Apomixis produces seed progeny thatExpand
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Isolation of sub-diploid microprotoplasts for partial genome transfer in plants: Enhancement of micronucleation and enrichment of microprotoplasts with one or a few chromosomes
Results on the enhancement of the frequency of protoplasts with micronuclei, and on the isolation and enrichment of smaller sub-diploid microprotoplasts in transformed Nicotiana plumbaginifolia Viv.Expand
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Sensitivity and induction of mutations in sorghum
The effect of physical (X- and γ-rays) and chemical (EMS, MMS, DES and NEU) mutagens and combination treatments was studied on germination, survival, seedling growth, pollen and seed fertility in M1Expand
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Identification and molecular analysis of transgenic potato chromosomes transferred to tomato through microprotoplast fusion
Abstract Results are reported on the integration sites and copy number of alien marker genes neomycin phosphotransferase II (nptII) and β-glucuronidase (uidA), introduced into diploid potato SolanumExpand
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Genetic instability in protoclones of potato (Solanum tuberosum L. cv. ‘Bintje’): new types of variation after vegetative propagation
SummaryThe transmission of variation from protoplast-derived plants of tetraploid potato cultivar ‘Bintje’ to tuber progeny was examined. The morphological alterations of a majority of the variantExpand
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