Somatic hybridization by fusion of protoplasts. III. Somatic hybrids of sexually incompatible combinations Nicotiana tabacum+Nicotiana repanda and Nicotiana tabacum+Salpiglossis sinuata.
نویسندگان
چکیده
منابع مشابه
Interspecific chloroplast recombination in a Nicotiana somatic hybrid.
Genetic recombination between chloroplasts of two flowering plant species, Nicotiana tabacum and Nicotiana plumbaginifolia, after somatic cell fusion is described. The parental lines differed in three cytoplasmic genetic markers. The N. tabacum mutant SR1-A15 was streptomycin-resistant, defective in chloroplast greening, and lincomycin-sensitive. The N. plumbaginifolia mutant LR400 was streptom...
متن کاملSomatic mutational transients: response to acute gamma irradiation by two genes in a clone of Nicotiana.
ENETIC analysis implying that mutable alleles at the gene locus V account Gfor flower color variegation in a Nicotiana culture has been presented by SMITH and SAND (1957). These plants also contain stable genes for flower color and have been found useful for the study of interaction between environmental factors and genetic systems of varying stability (SAND 1957, 1962). Other work with this ma...
متن کاملEmbryo Development in Nicotiana Species Hybrids.
I n a study of the compatibilities of certain Nicotiana species, several crosses were reported which produce seeds unable to germinate. (MCCRAY 1932). Many others are recorded in the literature on this genus. Some of these seeds are parthenocarpic; others have embryos not able to develop. In still other cases the hybrid germinates but is unable to carry on further. All degrees of vigor have bee...
متن کاملPurine metabolism in mesophyll protoplasts of tobacco (Nicotiana tabacum) leaves.
The overall metabolism of purines was studied in tobacco (Nicotiana tabacum) mesophyll protoplasts. Metabolic pathways were studied by measuring the conversion of radioactive adenine, adenosine, hypoxanthine and guanine into purine ribonucleotides, ribonucleosides, bases and nucleic acid constituents. Adenine was extensively deaminated to hypoxanthine, whereupon it was also converted into AMP a...
متن کاملTemperature-Sensitive Variants of NICOTIANA TABACUM Isolated from Somatic Cell Culture.
Temperature-sensitive variants of Nicotiana tabacum were isolated from a liquid suspension culture of somatic cells by a negative selection procedure, using bromodeoxyuridine and light. A total of nine such variants have been recovered, with an estimated rate of 2 x 10(-7) per cell division. The appearance of the variants at the permissive temperature varied from nearly wild type, white and fri...
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ژورنال
عنوان ژورنال: Japanese Journal of Crop Science
سال: 1982
ISSN: 0011-1848,1349-0990
DOI: 10.1626/jcs.51.35