Meiotic Chromosome Behaviours of Auto-pentaploid Rice Plant Derived from Anther Culture

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• A pentaploid rice plant designated A4 by Nishi and Mitsuoka (1969) showed chromosome-mosaicism in MI of PMCs. When reckoned 2n numbers from the meiotic chromosome configurations, various aneuploid cells ranging from 33 to 99 were observed in one and the same anther-locule.Morphologically it resembles tetraploid, but anthesis is quite different. As it is similar to cleistogamy, fertilization has never taken place, resulting in the parthenocarpy. When crossed with the pollens of normal diploids, it set only imperfect seeds having no germinating ability. This plant was characterized by the formation of multi-germ-pores on the pollen grain.

• 財団法人 日本メンデル協会の論文

財団法人 日本メンデル協会 | 論文

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