Abstract
Anther culture response of accessions of several hexaploid Avena species was studied with respect to requirement for auxin. The highest callus induction frequency was achieved withA. sativa L. cv. Stout (17.3%). The three most responsive genotypes, two of A. sativa and one of A. nuda L., had two-fold higher anther culture responses on growth regulator -free medium than on a medium containing 2,4-d. The A. sterilis L. accession CAV 2648 was the only genotype which consistently produced white, embryogenic structures (on solid MS+ 10% sucrose) and did so irrespective of the presence of 2,4-d. When transferred onto medium with lower sucrose concentration and an auxin transport inhibitor (TIBA), three green (two diploid [2t n=6t x=42] and one haploid [1t n=3t x=21]) and two albino plantlets were regenerated. The diploid regenerants set seed in the greenhouse. This first report of plants recovered from anther culture in the wild oat A. sterilis may provide an avenue to understand better and possibly overcome problems associated with androgenesis in cultivated oat.
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Kiviharju, E., Puolimatka, M. & Pehu, E. Regeneration of anther-derived plants ofAvena sterilis. Plant Cell, Tissue and Organ Culture 48, 147–152 (1997). https://doi.org/10.1023/A:1005821502596
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DOI: https://doi.org/10.1023/A:1005821502596