Creation of Brassica campestris-oleracea Addition Lines from the Artificially Synthesized B. napus with Morphological Characters as Gene Markers

doi:10.3321/j.issn:1000-7091.1993.04.009

Abstract

Abstract: Artificially synthesized rapeseeds (Brassica napus) have been produced from the hybridization of B. campestris and B. oleracea by ovary culture and embryo culture. All accessions of B. campestris and B. oleracea have special morphological characters in order to locate those genes controlling the characters concerned. After backcrossing the synthetic B. napus to B. campestris, 31 plants with 2n = 21 and 18 plants with 2n = 22 chromosome number were developed. Further studies will be concentrated on the genes located on the added chromosomes of B. oleracea. Additionally, observation was made on the effects of the added chromosome(s) on the fertility of addition Lines. The result indicated that the added chromosome would apparently reduce the seed-setting percentage of addition lines.

Key words: Synthetic rapeseed, Chromosome addition lines, Fertility

Li Genyi, Gao Muqiang, Yang Jianping. Creation of Brassica campestris-oleracea Addition Lines from the Artificially Synthesized B. napus with Morphological Characters as Gene Markers[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1993, 8(4): 41-45. doi: 10.3321/j.issn:1000-7091.1993.04.009.

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