2024-03-29T05:50:16Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1280342018-08-02T11:47:44Zcom_10261_74com_10261_6col_10261_327
DIGITAL.CSIC
author
Trapero, Carlos
author
Barranco, Diego
author
Martín, Antonio
author
Díez, Concepción M.
funder
Ministerio de Educación y Ciencia (España)
funder
Junta de Andalucía
2016-01-25T11:15:43Z
2016-01-25T11:15:43Z
2014-08-14
Scientia Horticulturae 177(2): 43- 46 (2014)
http://hdl.handle.net/10261/128034
10.1016/j.scienta.2014.07.015
http://dx.doi.org/10.13039/501100011011
The occurrence of spontaneous sexual polyembryony is described and characterized for cultivated olive (Olea europaea L.). We screened seeds from 24 olive cultivars and found significant differences in the frequency of polyembryonic seeds between them. Cultivar 'Cornicabra' and, especially, 'Meski' yielded the highest ratio of polyembryonic seeds (1.6% and 3.0%, respectively), indicating that polyembryony is a low-frequency (0.95% of 5287 observed seeds) but cultivar-dependent feature in olive. Polyembryonic seeds consisted of two and eventually three embryos with a normal endosperm. Simple sequence repeat (SSR) markers were used to characterize the nature of the polyembryonic seedlings. DNA profiles indicated that polyembryonic seedlings in olive have a sexual origin because their profiles were identical and distinguishable from the mother parent. Therefore, polyembryony in olive is of a sexual origin and is due to monozygotic cleavage after normal fertilization. To the best of our knowledge, this is the first evidence of polyembryony in olive and its occurrence in a representative number of cultivars
eng
closedAccess
Seedlings
Monozygotic cleavage
Twin embryos
Olea europaea
Polyembryonic
Occurrence and variability of sexual polyembryony in olive cultivars
artículo
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https://digital.csic.es/bitstream/10261/128034/1/accesoRestringido.pdf
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accesoRestringido.pdf.txt
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accesoRestringido.pdf.txt