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  • 1
    Electronic Resource
    Electronic Resource
    Intergeneric crosses with Fragaria and Potentilla. I. Crosses between Fragaria moschata and Potentilla fruticosa (1985)
    Springer
    Euphytica 34 (1985), S. 725-735 
    Details
    ISSN: 1573-5060
    Keywords: Fragaria moschata ; Potentilla fruticosa ; intergeneric hybrids ; embryo culture ; parthenogenesis ; aneuploidy ; polyploidy ; chromosome elimination ; genetic variation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Crosses between Fragaria moschata (2n=42) and Potentilla fruticosa (2n=14) produced many seeds; about half of these germinated, but only nine plants were obtained from 554 seedlings. Five plants died without flowering, and four were vigorous but sterile. Four plants had the expected chromosome number (2n=28), one plant had 21 chromosomes, and four were aneuploid with 23, 24, 25 and 27 chromosomes respectively. Response to growth substances giving elongated stem internodes and swollen but not succulent receptacles provided evidence that two of the plant were hybrids. It is suggested that all nine plants originated from a normal fertilisation which was followed in some cases by chromosome elimination at an early stage of embryo development.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00035410
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    In tergeneric crosses with Fragaria and Potentilla. II. Crosses between the progeny of Fragaria moschata x Potentilla fruticosa and the original parents (1985)
    Springer
    Euphytica 34 (1985), S. 737-744 
    Details
    ISSN: 1573-5060
    Keywords: Eragaria moschata ; Potentilla fruticosa ; intergeneric hybrids ; backcrossing ; embryo culture ; parthenogenesis ; ancuploidy ; polyploidy ; unreduced gametes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary An aneuploid hybrid (2n=23) of Fragaria moschata (2n=42) and Potentilla fruticosa (2n=14) was backcrossed with pollen of both parents, separately and combined in a pollen mixture. Seven vigorous progeny were obtained. The origin of the exeptional chromosome numbers, 2n=44, 49, 63, 63, 65, 67, 67, is discussed, and it is shown that each of the numbers could be produced by the fertilisation of unreduced and double unreduced gametes of the hybrid by normally reduced gametes of one of the parental species.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00035411
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
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