Untersuchungen �ber die Cytologie polyploider Pflanzen I

Linnert, Gertrud

doi:10.1007/bf00319483

Cited by 24 publications

(2 citation statements)

References 7 publications

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“…For non-permanent translocation heterozygotes, haploid lines are reported with a spontaneous frequency of 0.1 – 0.2% (Davis and Kulkarni, 1930; Harte, 1973). Additionally they can be induced by X-ray treatment (Linnert, 1950; Harte, 1972), or by performing wide interspecific crosses (e.g., Gates, 1929; Steiner, 1952; Schwemmle and Simson, 1956; Lee and Hecht, 1975; Harte, 1994; and references therein). Haploid material can be converted to double-haploid lines by colchicination (e.g., Oehlkers, 1940; Linnert, 1950; Lee and Hecht, 1975).…”

Section: Vegetative Propagation Induction Of Polyploidy and Modifiamentioning

confidence: 99%

“…Seeds or seedlings are placed on wet blotting paper containing colchicine, or alternatively rosettes are treated with colchicine shortly before bolting. In both cases, most surviving plants produce tetraploid offspring ( Hecht, 1942 ; Stomps, 1942 ; Linnert, 1950 ; Renner and Hirmer, 1956 ). Subsequent treatments of tetraploid lines with colchicine can produce octo- or even hexadecaploid plants ( Renner and Hirmer, 1956 ; Rossmann, unpublished).…”

Section: Vegetative Propagation Induction Of Polyploidy and Modifiamentioning

confidence: 99%

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Growing evening primroses (Oenothera)

Greiner

Köhl

2014

Front. Plant Sci.

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The model plant Oenothera has contributed significantly to the biological sciences and it dominated the early development of plant genetics, cytogenetics, and evolutionary biology. The great advantage of using Oenothera as a model system is a large body of genetic, cytological, morphological, and ecological information collected over more than a century. The Oenothera system offers a well-studied taxonomy, population structure, and ecology. Cytogenetics and formal genetics at the population level are extensively developed, providing an excellent basis to study evolutionary questions. Further, Oenothera is grown as an oil seed crop for the production of essential fatty acids (gamma-linoleic acid) and is considered to be a medicinal plant due to its many pharmaceutically active secondary metabolites, such as ellagitannins. Although Oenothera has been cultivated as a laboratory organism since the end of the 19th century, there is a substantial lack of literature dealing with modern greenhouse techniques for the genus. This review compiles an overview about the growth requirements for the genus Oenothera, with a special focus on its genetically best-studied subsections Oenothera and Munzia. Requirements for greenhouse, field, and agronomic cultures are presented, together with information on substrate types, pest control, as well as vegetative and seed propagation, cross pollination, harvest, and seed storage. Particular aspects like germination, bolting, and flowering induction in taxonomically diverse material are reviewed. Methods recommended are supported by ecological and experimental data. An overview of the possibilities for wide hybridization and polyploidy induction in the genus is given. Germplasm resources are referenced. In summary, a comprehensive guideline for successful laboratory cultivation of Oenothera species is provided.

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