胚培養を用いた不稔種 Lycoris incarnata を交配親とする種間雑種の作出

DOI NDLデジタルコレクション 日本農学文献記事索引 Web Site Web Site 被引用文献4件 参考文献26件

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  • Production of Interspecific Hybrids Between Lycoris incarnata and Four Other Lycoris Species through Embryo Culture.

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Interspecific crosses were made between a sterile species (L. incarnata) and four fertile species (L. sanguinea, L. sprengeri, L. radiata var. pumila (L. pumila, hereafter), and L. aurea) to breed varieties with new characters. Embryos, excised from ovules 20-30 days after pollination, were cultured on a modified MS medium containing 500 mg·liter-1 casein hydrolysate (Ma et al., 2001). Interspecific crosses using L. incarnata as a female parent yielded 26 hybrid plants, whereas that of L. sanguinea × L. incarnata produced none. Cytological studies revealed that all hybrids were triploid, which would have originated from the fertilization of an unreduced 2n-egg of the female parent (L. incarnata) and a normal haploid gamete of the male parent. The hybridity was also confirmed by isozyme analysis in 26 hybrid plants and partly by character observation in hybrid plants of L. incarnata × L. pumila.

収録刊行物

  • 園芸学会雑誌

    園芸学会雑誌 70 (6), 697-703, 2001

    一般社団法人　園芸学会

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