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Endosperm abortion and the production of viable aegilops squarrosa x triticum boeoticum hybrids by embryo culture



Endosperm abortion and the production of viable aegilops squarrosa x triticum boeoticum hybrids by embryo culture



Plant Science Letters 23(2): 181-188



Endosperm development and embryo lethality were studied in hybrids of different accessions of A. squarrosa (female) and the diploid wheats T. boeoticum, T. monococcum and T. urartu. No cross produced plump viable seed and crosses varied with respect to both endosperm development and embryo viability. A. squarrosa .times. T. urartu hybrids showed good seed development but embryos were semi-lethal and seedling death resulted. A. squarrosa .times. T. monococcum hybrids showed endosperm abortion and embryos were lethal or semi-lethal. A. squarrosa .times. T. boeoticum hybrid seeds were dead by day 14. Viable F1 squarrosa .times. boeoticum hybrid plants were obtained by embryo culture at day 10 of seed development. The nature of endosperm abortion was investigated by following early endosperm development and storage-protein synthesis.

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Accession: 005359794

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DOI: 10.1016/0304-4211(81)90010-9



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